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from itertools import product, combinations_with_replacement
import time
import threading
from collections import defaultdict
import math
 
# 配置参数（可根据需要修改）
TARGET = 24660  # 目标值
BASE_VALUES = [36.5, 41.5, 59,68.5, 74, 91.5]  # 基础系数列表
FLUCTUATION = 1.0  # 系数波动范围
MAX_SOLUTIONS = 3  # 每个组合的最大解数量
SOLVER_TIMEOUT = 180  # 求解超时时间(秒)
THREE_VAR_THRESHOLD = 220000  # 使用三个变量的阈值
PRODUCT_RANGE_THRESHOLD = 148000  # 乘积范围限制阈值
HIGH_TARGET_THRESHOLD = 260000  # 更高目标值阈值
SHOW_PROGRESS = True  # 是否显示进度
MAX_SOLUTIONS_PER_COMB = 100  # 每个组合的最大解数量，用于提前终止
 
def is_valid_product(p):
    """检查单个乘积是否在有效范围内"""
    if TARGET > PRODUCT_RANGE_THRESHOLD:
        if TARGET > HIGH_TARGET_THRESHOLD:
            return p <= 115000  # 目标值超过260000时，仅限制最大值
        else:
            return 74000 <= p <= 115000  # 目标值在148000-260000之间时，使用原范围
    else:
        return True  # 目标值较小时不限制乘积范围
 
def find_single_variable_solutions(values):
    """查找单个数的解（a*x = TARGET）"""
    solutions = []
    for a in values:
        x = TARGET / a
        if x.is_integer() and 1 <= x <= 10000 and is_valid_product(a * x):
            solutions.append((a, x))
            if len(solutions) >= MAX_SOLUTIONS:
                return solutions  # 提前终止
    return solutions
 
def find_two_variable_solutions(values):
    """查找两个变量的解（a*x + b*y = TARGET）"""
    solutions = defaultdict(list)
 
    # 生成所有可能的(a, b)组合
    for a in values:
        for b in values:
            if a == b:  # 避免重复
                continue
 
            # 计算x的有效范围
            min_x = max(1, math.ceil((TARGET - b * 10000) / a))
            max_x = min(math.floor((TARGET - 1) / a), 10000)
 
            if max_x < min_x:
                continue
 
            for x in range(min_x, max_x + 1):
                remainder = TARGET - a * x
 
                # 检查remainder是否在可能的范围内
                if remainder < 1 or remainder > b * 10000:
                    continue
 
                # 检查remainder是否能被b整除
                if remainder % b == 0:
                    y = remainder // b
                    if 1 <= y <= 10000 and is_valid_product(b * y):
                        solutions[(a, b)].append((a, x, b, y))
                        if len(solutions[(a, b)]) >= MAX_SOLUTIONS_PER_COMB:
                            break  # 提前终止当前组合的搜索
 
    return solutions
 
def find_three_variable_solutions(values):
    """优化的三变量求解算法"""
    solutions = defaultdict(list)
 
    # 对系数进行排序，便于剪枝
    sorted_values = sorted(values)
 
    # 预计算每个系数的有效范围
    value_ranges = {}
    for a in sorted_values:
        if TARGET > PRODUCT_RANGE_THRESHOLD:
            if TARGET > HIGH_TARGET_THRESHOLD:
                min_x = max(1, math.ceil(1 / a))  # 取消下限，最小为1
                max_x = min(10000, math.floor(115000 / a))
            else:
                min_x = max(1, math.ceil(74000 / a))
                max_x = min(10000, math.floor(115000 / a))
        else:
            min_x = 1
            max_x = 10000
        value_ranges[a] = (min_x, max_x)
 
    total_combinations = len(sorted_values) * (len(sorted_values) - 1) * (len(sorted_values) - 2) // 6
    processed_combinations = 0
 
    # 三重循环，但添加了更多剪枝条件
    for i, a in enumerate(sorted_values):
        min_x, max_x = value_ranges[a]
 
        # 计算可能的x值数量，决定步长
        x_count = max_x - min_x + 1
        x_step = max(1, x_count // 1000)  # 自适应步长
 
        for x in range(min_x, max_x + 1, x_step):
            ax = a * x
            if not is_valid_product(ax):
                continue
 
            remainder1 = TARGET - ax
            if TARGET > PRODUCT_RANGE_THRESHOLD:
                if TARGET > HIGH_TARGET_THRESHOLD:
                    if remainder1 < 0:
                        continue
                else:
                    if remainder1 < 2 * 74000:
                        continue
 
            # 限制b的选择范围，避免重复组合
            for j in range(i + 1, len(sorted_values)):
                b = sorted_values[j]
 
                if TARGET > PRODUCT_RANGE_THRESHOLD:
                    if TARGET > HIGH_TARGET_THRESHOLD:
                        min_y = max(1, math.ceil(1 / b))  # 取消下限，最小为1
                        max_y = min(10000, math.floor(remainder1 / b))
                    else:
                        min_y = max(1, math.ceil(74000 / b))
                        max_y = min(10000, math.floor((remainder1 - 74000) / b))
                else:
                    min_y = 1
                    max_y = math.floor(remainder1 / b)
 
                if max_y < min_y:
                    continue
 
                # 计算可能的y值数量，决定步长
                y_count = max_y - min_y + 1
                y_step = max(1, y_count // 100)  # 自适应步长
 
                for y in range(min_y, max_y + 1, y_step):
                    by = b * y
                    if not is_valid_product(by):
                        continue
 
                    remainder2 = remainder1 - by
                    if TARGET > PRODUCT_RANGE_THRESHOLD:
                        if TARGET > HIGH_TARGET_THRESHOLD:
                            if remainder2 < 0 or remainder2 > 115000:
                                continue
                        else:
                            if remainder2 < 74000 or remainder2 > 115000:
                                continue
 
                    # 限制c的选择范围
                    found_solution = False
                    for k in range(j + 1, len(sorted_values)):
                        c = sorted_values[k]
 
                        # 检查remainder2是否能被c整除
                        if remainder2 % c != 0:
                            continue
 
                        z = remainder2 // c
                        if 1 <= z <= 10000 and is_valid_product(c * z):
                            key = (a, b, c)
                            solutions[key].append((a, x, b, y, c, z))
                            found_solution = True
                            if len(solutions[key]) >= MAX_SOLUTIONS_PER_COMB:
                                break  # 提前终止当前组合的搜索
 
                    # 如果找到解且达到最大数量，跳出y循环
                    if found_solution and len(solutions[key]) >= MAX_SOLUTIONS_PER_COMB:
                        break  # 跳出y循环
 
                # 进度显示
                if SHOW_PROGRESS and j % 10 == 0:
                    print(f"\r三变量组合进度: {processed_combinations}/{total_combinations} 组", end='')
                processed_combinations += 1
 
    if SHOW_PROGRESS:
        print(f"\r三变量组合进度: {processed_combinations}/{total_combinations} 组 - 完成")
 
    return solutions
 
def find_balanced_solutions(solutions, var_count, num=2):
    """从所有解中筛选出最平衡的解"""
    if var_count == 1 or not solutions:
        return solutions  # 单变量或无解时直接返回
 
    # 当目标值超过220000时，不计算平衡解
    if TARGET > THREE_VAR_THRESHOLD:
        return []
 
    # 计算解的平衡性（变量间差异最小）
    balanced = []
    for sol in solutions:
        vars = sol[1::2]  # 提取x, y, z
        diff = max(vars) - min(vars)
        balanced.append((diff, sol))
 
    # 按差异排序，取前num个
    return [s for _, s in sorted(balanced, key=lambda x: x[0])[:num]]
 
def find_original_solutions(solutions, balanced_solutions, num=3):
    """从剩余解中获取原始顺序的解"""
    if not solutions:
        return []
 
    # 排除已在平衡解中的项
    remaining = [s for s in solutions if s not in balanced_solutions]
    return remaining[:num]
 
def display_solutions(solutions_dict, var_count):
    """优化的解显示函数"""
    if not solutions_dict:
        return
 
    print(f"\n找到 {len(solutions_dict)} 组{var_count}变量解：")
 
    for i, (coeffs, pair_solutions) in enumerate(sorted(solutions_dict.items()), 1):
        # 当目标值超过220000时，不显示平衡解
        if TARGET > THREE_VAR_THRESHOLD:
            all_display = pair_solutions[:MAX_SOLUTIONS]
            print_tag = "[原始解]"
        else:
            # 计算平衡解和原始解
            balanced = find_balanced_solutions(pair_solutions, var_count)
            original = find_original_solutions(pair_solutions, balanced)
            all_display = balanced + original
 
        if var_count == 1:
            a = coeffs
            print(f"\n{i}. 组合: a={a} ({len(pair_solutions)} 个有效解)")
        elif var_count == 2:
            a, b = coeffs
            print(f"\n{i}. 组合: a={a}, b={b} ({len(pair_solutions)} 个有效解)")
        else:  # var_count == 3
            a, b, c = coeffs
            print(f"\n{i}. 组合: a={a}, b={b}, c={c} ({len(pair_solutions)} 个有效解)")
 
        for j, sol in enumerate(all_display, 1):
            if TARGET > THREE_VAR_THRESHOLD:
                tag = print_tag
            else:
                tag = "[平衡解]" if j <= len(balanced) else "[原始解]"
 
            if var_count == 1:
                a, x = sol
                print(f"  {j}. x={x}, a*x={a*x:.1f}, 总和={a*x:.1f} {tag}")
            elif var_count == 2:
                a, x, b, y = sol
                print(f"  {j}. x={x}, y={y}, a*x={a*x:.1f}, b*y={b*y:.1f}, 总和={a*x + b*y:.1f} {tag}")
            else:  # var_count == 3
                a, x, b, y, c, z = sol
                print(f"  {j}. x={x}, y={y}, z={z}, "
                      f"a*x={a*x:.1f}, b*y={b*y:.1f}, c*z={c*z:.1f}, "
                      f"总和={a*x + b*y + c*z:.1f} {tag}")
 
def run_with_timeout(func, args=(), kwargs=None, timeout=SOLVER_TIMEOUT):
    """运行函数并设置超时限制"""
    if kwargs is None:
        kwargs = {}
 
    result = []
    error = []
 
    def wrapper():
        try:
            result.append(func(*args, **kwargs))
        except Exception as e:
            error.append(e)
 
    thread = threading.Thread(target=wrapper)
    thread.daemon = True
    thread.start()
    thread.join(timeout)
 
    if thread.is_alive():
        print(f"警告: {func.__name__} 超时（{timeout}秒），跳过此方法")
        return None
 
    if error:
        raise error[0]
 
    return result[0]
 
def main():
    print(f"目标值: {TARGET}")
 
    # 生成波动后的系数
    FLUCTUATED_VALUES = [round(v - FLUCTUATION, 1) for v in BASE_VALUES]
 
    # 尝试基础系数
    print(f"\n==== 尝试基础系数 ====")
 
    # 检查目标值是否超过阈值
    if TARGET > THREE_VAR_THRESHOLD:
        print(f"目标值 {TARGET} 超过阈值 {THREE_VAR_THRESHOLD}，只尝试三变量解")
        base_solutions = {
            'single': [],
            'two': [],
            'three': run_with_timeout(find_three_variable_solutions, args=(BASE_VALUES,))
        }
 
        # 显示三变量解
        if base_solutions['three'] and len(base_solutions['three']) > 0:
            display_solutions(base_solutions['three'], 3)
            print(f"\n使用基础系数列表，共找到有效解")
            return
        else:
            print("\n基础系数三变量无解，尝试波动系数")
    else:
        # 目标值未超过阈值，按顺序尝试单、双、三变量解
        base_solutions = {
            'single': run_with_timeout(find_single_variable_solutions, args=(BASE_VALUES,)),
            'two': run_with_timeout(find_two_variable_solutions, args=(BASE_VALUES,)),
            'three': []
        }
 
        # 检查是否有解
        has_solution = False
 
        # 显示单变量解
        if base_solutions['single']:
            has_solution = True
            display_solutions({a: [sol] for a, sol in zip(BASE_VALUES, base_solutions['single']) if sol}, 1)
 
        # 显示双变量解
        if base_solutions['two'] and len(base_solutions['two']) > 0:
            has_solution = True
            display_solutions(base_solutions['two'], 2)
 
        # 单变量和双变量都无解时，尝试三变量解
        if not has_solution:
            print(f"\n==== 单变量和双变量无解，尝试三变量解 ====")
            base_solutions['three'] = run_with_timeout(find_three_variable_solutions, args=(BASE_VALUES,))
 
            if base_solutions['three'] and len(base_solutions['three']) > 0:
                has_solution = True
                display_solutions(base_solutions['three'], 3)
 
        # 如果找到解，退出程序
        if has_solution:
            print(f"\n使用基础系数列表，共找到有效解")
            return
 
    # 如果基础系数没有找到解，尝试波动系数
    print(f"\n==== 尝试波动系数 ====")
 
    # 检查目标值是否超过阈值
    if TARGET > THREE_VAR_THRESHOLD:
        print(f"目标值 {TARGET} 超过阈值 {THREE_VAR_THRESHOLD}，只尝试三变量解")
        fluctuated_solutions = {
            'single': [],
            'two': [],
            'three': run_with_timeout(find_three_variable_solutions, args=(FLUCTUATED_VALUES,))
        }
 
        # 显示三变量解
        if fluctuated_solutions['three'] and len(fluctuated_solutions['three']) > 0:
            display_solutions(fluctuated_solutions['three'], 3)
            print(f"\n使用波动系数列表，共找到有效解")
            return
    else:
        # 目标值未超过阈值，按顺序尝试单、双、三变量解
        fluctuated_solutions = {
            'single': run_with_timeout(find_single_variable_solutions, args=(FLUCTUATED_VALUES,)),
            'two': run_with_timeout(find_two_variable_solutions, args=(FLUCTUATED_VALUES,)),
            'three': []
        }
 
        # 重置标志
        has_solution = False
 
        # 显示单变量解
        if fluctuated_solutions['single']:
            has_solution = True
            display_solutions({a: [sol] for a, sol in zip(FLUCTUATED_VALUES, fluctuated_solutions['single']) if sol}, 1)
 
        # 显示双变量解
        if fluctuated_solutions['two'] and len(fluctuated_solutions['two']) > 0:
            has_solution = True
            display_solutions(fluctuated_solutions['two'], 2)
 
        # 单变量和双变量都无解时，尝试三变量解
        if not has_solution:
            print(f"\n==== 单变量和双变量无解，尝试三变量解 ====")
            fluctuated_solutions['three'] = run_with_timeout(find_three_variable_solutions, args=(FLUCTUATED_VALUES,))
 
            if fluctuated_solutions['three'] and len(fluctuated_solutions['three']) > 0:
                has_solution = True
                display_solutions(fluctuated_solutions['three'], 3)
 
        # 如果找到解，退出程序
        if has_solution:
            print(f"\n使用波动系数列表，共找到有效解")
            return
 
    # 如果所有系数集都没有找到解
    print("\n没有找到符合条件的解，即使使用波动后的系数列表。")
 
if __name__ == "__main__":
    start_time = time.time()
    main()
    print(f"\n总耗时: {time.time() - start_time:.2f}秒")

from itertools import product, combinations_with_replacement
import time
import threading
from collections import defaultdict
import math

# 配置参数（可根据需要修改）
TARGET = 24660  # 目标值
BASE_VALUES = [36.5, 41.5, 59,68.5, 74, 91.5]  # 基础系数列表
FLUCTUATION = 1.0  # 系数波动范围
MAX_SOLUTIONS = 3  # 每个组合的最大解数量
SOLVER_TIMEOUT = 180  # 求解超时时间(秒)
THREE_VAR_THRESHOLD = 220000  # 使用三个变量的阈值
PRODUCT_RANGE_THRESHOLD = 148000  # 乘积范围限制阈值
HIGH_TARGET_THRESHOLD = 260000  # 更高目标值阈值
SHOW_PROGRESS = True  # 是否显示进度
MAX_SOLUTIONS_PER_COMB = 100  # 每个组合的最大解数量，用于提前终止

def is_valid_product(p):
    """检查单个乘积是否在有效范围内"""
    if TARGET > PRODUCT_RANGE_THRESHOLD:
        if TARGET > HIGH_TARGET_THRESHOLD:
            return p <= 115000  # 目标值超过260000时，仅限制最大值
        else:
            return 74000 <= p <= 115000  # 目标值在148000-260000之间时，使用原范围
    else:
        return True  # 目标值较小时不限制乘积范围

def find_single_variable_solutions(values):
    """查找单个数的解（a*x = TARGET）"""
    solutions = []
    for a in values:
        x = TARGET / a
        if x.is_integer() and 1 <= x <= 10000 and is_valid_product(a * x):
            solutions.append((a, x))
            if len(solutions) >= MAX_SOLUTIONS:
                return solutions  # 提前终止
    return solutions

def find_two_variable_solutions(values):
    """查找两个变量的解（a*x + b*y = TARGET）"""
    solutions = defaultdict(list)
    
    # 生成所有可能的(a, b)组合
    for a in values:
        for b in values:
            if a == b:  # 避免重复
                continue
                
            # 计算x的有效范围
            min_x = max(1, math.ceil((TARGET - b * 10000) / a))
            max_x = min(math.floor((TARGET - 1) / a), 10000)
            
            if max_x < min_x:
                continue
                
            for x in range(min_x, max_x + 1):
                remainder = TARGET - a * x
                
                # 检查remainder是否在可能的范围内
                if remainder < 1 or remainder > b * 10000:
                    continue
                    
                # 检查remainder是否能被b整除
                if remainder % b == 0:
                    y = remainder // b
                    if 1 <= y <= 10000 and is_valid_product(b * y):
                        solutions[(a, b)].append((a, x, b, y))
                        if len(solutions[(a, b)]) >= MAX_SOLUTIONS_PER_COMB:
                            break  # 提前终止当前组合的搜索
    
    return solutions

def find_three_variable_solutions(values):
    """优化的三变量求解算法"""
    solutions = defaultdict(list)
    
    # 对系数进行排序，便于剪枝
    sorted_values = sorted(values)
    
    # 预计算每个系数的有效范围
    value_ranges = {}
    for a in sorted_values:
        if TARGET > PRODUCT_RANGE_THRESHOLD:
            if TARGET > HIGH_TARGET_THRESHOLD:
                min_x = max(1, math.ceil(1 / a))  # 取消下限，最小为1
                max_x = min(10000, math.floor(115000 / a))
            else:
                min_x = max(1, math.ceil(74000 / a))
                max_x = min(10000, math.floor(115000 / a))
        else:
            min_x = 1
            max_x = 10000
        value_ranges[a] = (min_x, max_x)
    
    total_combinations = len(sorted_values) * (len(sorted_values) - 1) * (len(sorted_values) - 2) // 6
    processed_combinations = 0
    
    # 三重循环，但添加了更多剪枝条件
    for i, a in enumerate(sorted_values):
        min_x, max_x = value_ranges[a]
        
        # 计算可能的x值数量，决定步长
        x_count = max_x - min_x + 1
        x_step = max(1, x_count // 1000)  # 自适应步长
        
        for x in range(min_x, max_x + 1, x_step):
            ax = a * x
            if not is_valid_product(ax):
                continue
                
            remainder1 = TARGET - ax
            if TARGET > PRODUCT_RANGE_THRESHOLD:
                if TARGET > HIGH_TARGET_THRESHOLD:
                    if remainder1 < 0:
                        continue
                else:
                    if remainder1 < 2 * 74000:
                        continue
                
            # 限制b的选择范围，避免重复组合
            for j in range(i + 1, len(sorted_values)):
                b = sorted_values[j]
                
                if TARGET > PRODUCT_RANGE_THRESHOLD:
                    if TARGET > HIGH_TARGET_THRESHOLD:
                        min_y = max(1, math.ceil(1 / b))  # 取消下限，最小为1
                        max_y = min(10000, math.floor(remainder1 / b))
                    else:
                        min_y = max(1, math.ceil(74000 / b))
                        max_y = min(10000, math.floor((remainder1 - 74000) / b))
                else:
                    min_y = 1
                    max_y = math.floor(remainder1 / b)
                    
                if max_y < min_y:
                    continue
                    
                # 计算可能的y值数量，决定步长
                y_count = max_y - min_y + 1
                y_step = max(1, y_count // 100)  # 自适应步长
                
                for y in range(min_y, max_y + 1, y_step):
                    by = b * y
                    if not is_valid_product(by):
                        continue
                        
                    remainder2 = remainder1 - by
                    if TARGET > PRODUCT_RANGE_THRESHOLD:
                        if TARGET > HIGH_TARGET_THRESHOLD:
                            if remainder2 < 0 or remainder2 > 115000:
                                continue
                        else:
                            if remainder2 < 74000 or remainder2 > 115000:
                                continue
                        
                    # 限制c的选择范围
                    found_solution = False
                    for k in range(j + 1, len(sorted_values)):
                        c = sorted_values[k]
                        
                        # 检查remainder2是否能被c整除
                        if remainder2 % c != 0:
                            continue
                            
                        z = remainder2 // c
                        if 1 <= z <= 10000 and is_valid_product(c * z):
                            key = (a, b, c)
                            solutions[key].append((a, x, b, y, c, z))
                            found_solution = True
                            if len(solutions[key]) >= MAX_SOLUTIONS_PER_COMB:
                                break  # 提前终止当前组合的搜索
                    
                    # 如果找到解且达到最大数量，跳出y循环
                    if found_solution and len(solutions[key]) >= MAX_SOLUTIONS_PER_COMB:
                        break  # 跳出y循环
                            
                # 进度显示
                if SHOW_PROGRESS and j % 10 == 0:
                    print(f"\r三变量组合进度: {processed_combinations}/{total_combinations} 组", end='')
                processed_combinations += 1
    
    if SHOW_PROGRESS:
        print(f"\r三变量组合进度: {processed_combinations}/{total_combinations} 组 - 完成")
    
    return solutions

def find_balanced_solutions(solutions, var_count, num=2):
    """从所有解中筛选出最平衡的解"""
    if var_count == 1 or not solutions:
        return solutions  # 单变量或无解时直接返回
    
    # 当目标值超过220000时，不计算平衡解
    if TARGET > THREE_VAR_THRESHOLD:
        return []
    
    # 计算解的平衡性（变量间差异最小）
    balanced = []
    for sol in solutions:
        vars = sol[1::2]  # 提取x, y, z
        diff = max(vars) - min(vars)
        balanced.append((diff, sol))
    
    # 按差异排序，取前num个
    return [s for _, s in sorted(balanced, key=lambda x: x[0])[:num]]

def find_original_solutions(solutions, balanced_solutions, num=3):
    """从剩余解中获取原始顺序的解"""
    if not solutions:
        return []
    
    # 排除已在平衡解中的项
    remaining = [s for s in solutions if s not in balanced_solutions]
    return remaining[:num]

def display_solutions(solutions_dict, var_count):
    """优化的解显示函数"""
    if not solutions_dict:
        return
    
    print(f"\n找到 {len(solutions_dict)} 组{var_count}变量解：")
    
    for i, (coeffs, pair_solutions) in enumerate(sorted(solutions_dict.items()), 1):
        # 当目标值超过220000时，不显示平衡解
        if TARGET > THREE_VAR_THRESHOLD:
            all_display = pair_solutions[:MAX_SOLUTIONS]
            print_tag = "[原始解]"
        else:
            # 计算平衡解和原始解
            balanced = find_balanced_solutions(pair_solutions, var_count)
            original = find_original_solutions(pair_solutions, balanced)
            all_display = balanced + original
        
        if var_count == 1:
            a = coeffs
            print(f"\n{i}. 组合: a={a} ({len(pair_solutions)} 个有效解)")
        elif var_count == 2:
            a, b = coeffs
            print(f"\n{i}. 组合: a={a}, b={b} ({len(pair_solutions)} 个有效解)")
        else:  # var_count == 3
            a, b, c = coeffs
            print(f"\n{i}. 组合: a={a}, b={b}, c={c} ({len(pair_solutions)} 个有效解)")
        
        for j, sol in enumerate(all_display, 1):
            if TARGET > THREE_VAR_THRESHOLD:
                tag = print_tag
            else:
                tag = "[平衡解]" if j <= len(balanced) else "[原始解]"
            
            if var_count == 1:
                a, x = sol
                print(f"  {j}. x={x}, a*x={a*x:.1f}, 总和={a*x:.1f} {tag}")
            elif var_count == 2:
                a, x, b, y = sol
                print(f"  {j}. x={x}, y={y}, a*x={a*x:.1f}, b*y={b*y:.1f}, 总和={a*x + b*y:.1f} {tag}")
            else:  # var_count == 3
                a, x, b, y, c, z = sol
                print(f"  {j}. x={x}, y={y}, z={z}, "
                      f"a*x={a*x:.1f}, b*y={b*y:.1f}, c*z={c*z:.1f}, "
                      f"总和={a*x + b*y + c*z:.1f} {tag}")

def run_with_timeout(func, args=(), kwargs=None, timeout=SOLVER_TIMEOUT):
    """运行函数并设置超时限制"""
    if kwargs is None:
        kwargs = {}
    
    result = []
    error = []
    
    def wrapper():
        try:
            result.append(func(*args, **kwargs))
        except Exception as e:
            error.append(e)
    
    thread = threading.Thread(target=wrapper)
    thread.daemon = True
    thread.start()
    thread.join(timeout)
    
    if thread.is_alive():
        print(f"警告: {func.__name__} 超时（{timeout}秒），跳过此方法")
        return None
    
    if error:
        raise error[0]
    
    return result[0]

def main():
    print(f"目标值: {TARGET}")
    
    # 生成波动后的系数
    FLUCTUATED_VALUES = [round(v - FLUCTUATION, 1) for v in BASE_VALUES]
    
    # 尝试基础系数
    print(f"\n==== 尝试基础系数 ====")
    
    # 检查目标值是否超过阈值
    if TARGET > THREE_VAR_THRESHOLD:
        print(f"目标值 {TARGET} 超过阈值 {THREE_VAR_THRESHOLD}，只尝试三变量解")
        base_solutions = {
            'single': [],
            'two': [],
            'three': run_with_timeout(find_three_variable_solutions, args=(BASE_VALUES,))
        }
        
        # 显示三变量解
        if base_solutions['three'] and len(base_solutions['three']) > 0:
            display_solutions(base_solutions['three'], 3)
            print(f"\n使用基础系数列表，共找到有效解")
            return
        else:
            print("\n基础系数三变量无解，尝试波动系数")
    else:
        # 目标值未超过阈值，按顺序尝试单、双、三变量解
        base_solutions = {
            'single': run_with_timeout(find_single_variable_solutions, args=(BASE_VALUES,)),
            'two': run_with_timeout(find_two_variable_solutions, args=(BASE_VALUES,)),
            'three': []
        }
        
        # 检查是否有解
        has_solution = False
        
        # 显示单变量解
        if base_solutions['single']:
            has_solution = True
            display_solutions({a: [sol] for a, sol in zip(BASE_VALUES, base_solutions['single']) if sol}, 1)
        
        # 显示双变量解
        if base_solutions['two'] and len(base_solutions['two']) > 0:
            has_solution = True
            display_solutions(base_solutions['two'], 2)
        
        # 单变量和双变量都无解时，尝试三变量解
        if not has_solution:
            print(f"\n==== 单变量和双变量无解，尝试三变量解 ====")
            base_solutions['three'] = run_with_timeout(find_three_variable_solutions, args=(BASE_VALUES,))
            
            if base_solutions['three'] and len(base_solutions['three']) > 0:
                has_solution = True
                display_solutions(base_solutions['three'], 3)
        
        # 如果找到解，退出程序
        if has_solution:
            print(f"\n使用基础系数列表，共找到有效解")
            return
    
    # 如果基础系数没有找到解，尝试波动系数
    print(f"\n==== 尝试波动系数 ====")
    
    # 检查目标值是否超过阈值
    if TARGET > THREE_VAR_THRESHOLD:
        print(f"目标值 {TARGET} 超过阈值 {THREE_VAR_THRESHOLD}，只尝试三变量解")
        fluctuated_solutions = {
            'single': [],
            'two': [],
            'three': run_with_timeout(find_three_variable_solutions, args=(FLUCTUATED_VALUES,))
        }
        
        # 显示三变量解
        if fluctuated_solutions['three'] and len(fluctuated_solutions['three']) > 0:
            display_solutions(fluctuated_solutions['three'], 3)
            print(f"\n使用波动系数列表，共找到有效解")
            return
    else:
        # 目标值未超过阈值，按顺序尝试单、双、三变量解
        fluctuated_solutions = {
            'single': run_with_timeout(find_single_variable_solutions, args=(FLUCTUATED_VALUES,)),
            'two': run_with_timeout(find_two_variable_solutions, args=(FLUCTUATED_VALUES,)),
            'three': []
        }
        
        # 重置标志
        has_solution = False
        
        # 显示单变量解
        if fluctuated_solutions['single']:
            has_solution = True
            display_solutions({a: [sol] for a, sol in zip(FLUCTUATED_VALUES, fluctuated_solutions['single']) if sol}, 1)
        
        # 显示双变量解
        if fluctuated_solutions['two'] and len(fluctuated_solutions['two']) > 0:
            has_solution = True
            display_solutions(fluctuated_solutions['two'], 2)
        
        # 单变量和双变量都无解时，尝试三变量解
        if not has_solution:
            print(f"\n==== 单变量和双变量无解，尝试三变量解 ====")
            fluctuated_solutions['three'] = run_with_timeout(find_three_variable_solutions, args=(FLUCTUATED_VALUES,))
            
            if fluctuated_solutions['three'] and len(fluctuated_solutions['three']) > 0:
                has_solution = True
                display_solutions(fluctuated_solutions['three'], 3)
        
        # 如果找到解，退出程序
        if has_solution:
            print(f"\n使用波动系数列表，共找到有效解")
            return
    
    # 如果所有系数集都没有找到解
    print("\n没有找到符合条件的解，即使使用波动后的系数列表。")

if __name__ == "__main__":
    start_time = time.time()
    main()
    print(f"\n总耗时: {time.time() - start_time:.2f}秒")    

Success #stdin #stdout 0.03s 10756KB

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Standard input is empty

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目标值: 24660

==== 尝试基础系数 ====

找到 1 组1变量解：

1. 组合: a=36.5 (1 个有效解)
  1. x=360.0, a*x=24660.0, 总和=24660.0 [平衡解]

找到 30 组2变量解：

1. 组合: a=36.5, b=41.5 (8 个有效解)
  1. x=297, y=333.0, a*x=10840.5, b*y=13819.5, 总和=24660.0 [平衡解]
  2. x=380, y=260.0, a*x=13870.0, b*y=10790.0, 总和=24660.0 [平衡解]
  3. x=48, y=552.0, a*x=1752.0, b*y=22908.0, 总和=24660.0 [原始解]
  4. x=131, y=479.0, a*x=4781.5, b*y=19878.5, 总和=24660.0 [原始解]
  5. x=214, y=406.0, a*x=7811.0, b*y=16849.0, 总和=24660.0 [原始解]

2. 组合: a=36.5, b=59 (6 个有效解)
  1. x=202, y=293.0, a*x=7373.0, b*y=17287.0, 总和=24660.0 [平衡解]
  2. x=320, y=220.0, a*x=11680.0, b*y=12980.0, 总和=24660.0 [平衡解]
  3. x=84, y=366.0, a*x=3066.0, b*y=21594.0, 总和=24660.0 [原始解]
  4. x=438, y=147.0, a*x=15987.0, b*y=8673.0, 总和=24660.0 [原始解]
  5. x=556, y=74.0, a*x=20294.0, b*y=4366.0, 总和=24660.0 [原始解]

3. 组合: a=36.5, b=68.5 (4 个有效解)
  1. x=274, y=214.0, a*x=10001.0, b*y=14659.0, 总和=24660.0 [平衡解]
  2. x=137, y=287.0, a*x=5000.5, b*y=19659.5, 总和=24660.0 [平衡解]
  3. x=411, y=141.0, a*x=15001.5, b*y=9658.5, 总和=24660.0 [原始解]
  4. x=548, y=68.0, a*x=20002.0, b*y=4658.0, 总和=24660.0 [原始解]

4. 组合: a=36.5, b=74 (4 个有效解)
  1. x=260, y=205.0, a*x=9490.0, b*y=15170.0, 总和=24660.0 [平衡解]
  2. x=112, y=278.0, a*x=4088.0, b*y=20572.0, 总和=24660.0 [平衡解]
  3. x=408, y=132.0, a*x=14892.0, b*y=9768.0, 总和=24660.0 [原始解]
  4. x=556, y=59.0, a*x=20294.0, b*y=4366.0, 总和=24660.0 [原始解]

5. 组合: a=36.5, b=91.5 (4 个有效解)
  1. x=267, y=163.0, a*x=9745.5, b*y=14914.5, 总和=24660.0 [平衡解]
  2. x=84, y=236.0, a*x=3066.0, b*y=21594.0, 总和=24660.0 [平衡解]
  3. x=450, y=90.0, a*x=16425.0, b*y=8235.0, 总和=24660.0 [原始解]
  4. x=633, y=17.0, a*x=23104.5, b*y=1555.5, 总和=24660.0 [原始解]

6. 组合: a=41.5, b=36.5 (8 个有效解)
  1. x=333, y=297.0, a*x=13819.5, b*y=10840.5, 总和=24660.0 [平衡解]
  2. x=260, y=380.0, a*x=10790.0, b*y=13870.0, 总和=24660.0 [平衡解]
  3. x=41, y=629.0, a*x=1701.5, b*y=22958.5, 总和=24660.0 [原始解]
  4. x=114, y=546.0, a*x=4731.0, b*y=19929.0, 总和=24660.0 [原始解]
  5. x=187, y=463.0, a*x=7760.5, b*y=16899.5, 总和=24660.0 [原始解]

7. 组合: a=41.5, b=59 (5 个有效解)
  1. x=226, y=259.0, a*x=9379.0, b*y=15281.0, 总和=24660.0 [平衡解]
  2. x=344, y=176.0, a*x=14276.0, b*y=10384.0, 总和=24660.0 [平衡解]
  3. x=108, y=342.0, a*x=4482.0, b*y=20178.0, 总和=24660.0 [原始解]
  4. x=462, y=93.0, a*x=19173.0, b*y=5487.0, 总和=24660.0 [原始解]
  5. x=580, y=10.0, a*x=24070.0, b*y=590.0, 总和=24660.0 [原始解]

8. 组合: a=41.5, b=68.5 (4 个有效解)
  1. x=274, y=194.0, a*x=11371.0, b*y=13289.0, 总和=24660.0 [平衡解]
  2. x=137, y=277.0, a*x=5685.5, b*y=18974.5, 总和=24660.0 [平衡解]
  3. x=411, y=111.0, a*x=17056.5, b*y=7603.5, 总和=24660.0 [原始解]
  4. x=548, y=28.0, a*x=22742.0, b*y=1918.0, 总和=24660.0 [原始解]

9. 组合: a=41.5, b=74 (4 个有效解)
  1. x=152, y=248.0, a*x=6308.0, b*y=18352.0, 总和=24660.0 [平衡解]
  2. x=300, y=165.0, a*x=12450.0, b*y=12210.0, 总和=24660.0 [平衡解]
  3. x=4, y=331.0, a*x=166.0, b*y=24494.0, 总和=24660.0 [原始解]
  4. x=448, y=82.0, a*x=18592.0, b*y=6068.0, 总和=24660.0 [原始解]

10. 组合: a=41.5, b=91.5 (3 个有效解)
  1. x=129, y=211.0, a*x=5353.5, b*y=19306.5, 总和=24660.0 [平衡解]
  2. x=312, y=128.0, a*x=12948.0, b*y=11712.0, 总和=24660.0 [平衡解]
  3. x=495, y=45.0, a*x=20542.5, b*y=4117.5, 总和=24660.0 [原始解]

11. 组合: a=59, b=36.5 (6 个有效解)
  1. x=293, y=202.0, a*x=17287.0, b*y=7373.0, 总和=24660.0 [平衡解]
  2. x=220, y=320.0, a*x=12980.0, b*y=11680.0, 总和=24660.0 [平衡解]
  3. x=1, y=674.0, a*x=59.0, b*y=24601.0, 总和=24660.0 [原始解]
  4. x=74, y=556.0, a*x=4366.0, b*y=20294.0, 总和=24660.0 [原始解]
  5. x=147, y=438.0, a*x=8673.0, b*y=15987.0, 总和=24660.0 [原始解]

12. 组合: a=59, b=41.5 (5 个有效解)
  1. x=259, y=226.0, a*x=15281.0, b*y=9379.0, 总和=24660.0 [平衡解]
  2. x=176, y=344.0, a*x=10384.0, b*y=14276.0, 总和=24660.0 [平衡解]
  3. x=10, y=580.0, a*x=590.0, b*y=24070.0, 总和=24660.0 [原始解]
  4. x=93, y=462.0, a*x=5487.0, b*y=19173.0, 总和=24660.0 [原始解]
  5. x=342, y=108.0, a*x=20178.0, b*y=4482.0, 总和=24660.0 [原始解]

13. 组合: a=59, b=68.5 (3 个有效解)
  1. x=137, y=242.0, a*x=8083.0, b*y=16577.0, 总和=24660.0 [平衡解]
  2. x=274, y=124.0, a*x=16166.0, b*y=8494.0, 总和=24660.0 [平衡解]
  3. x=411, y=6.0, a*x=24249.0, b*y=411.0, 总和=24660.0 [原始解]

14. 组合: a=59, b=74 (5 个有效解)
  1. x=206, y=169, a*x=12154.0, b*y=12506.0, 总和=24660.0 [平衡解]
  2. x=132, y=228, a*x=7788.0, b*y=16872.0, 总和=24660.0 [平衡解]
  3. x=58, y=287, a*x=3422.0, b*y=21238.0, 总和=24660.0 [原始解]
  4. x=280, y=110, a*x=16520.0, b*y=8140.0, 总和=24660.0 [原始解]
  5. x=354, y=51, a*x=20886.0, b*y=3774.0, 总和=24660.0 [原始解]

15. 组合: a=59, b=91.5 (2 个有效解)
  1. x=114, y=196.0, a*x=6726.0, b*y=17934.0, 总和=24660.0 [平衡解]
  2. x=297, y=78.0, a*x=17523.0, b*y=7137.0, 总和=24660.0 [平衡解]

16. 组合: a=68.5, b=36.5 (4 个有效解)
  1. x=214, y=274.0, a*x=14659.0, b*y=10001.0, 总和=24660.0 [平衡解]
  2. x=287, y=137.0, a*x=19659.5, b*y=5000.5, 总和=24660.0 [平衡解]
  3. x=68, y=548.0, a*x=4658.0, b*y=20002.0, 总和=24660.0 [原始解]
  4. x=141, y=411.0, a*x=9658.5, b*y=15001.5, 总和=24660.0 [原始解]

17. 组合: a=68.5, b=41.5 (4 个有效解)
  1. x=194, y=274.0, a*x=13289.0, b*y=11371.0, 总和=24660.0 [平衡解]
  2. x=277, y=137.0, a*x=18974.5, b*y=5685.5, 总和=24660.0 [平衡解]
  3. x=28, y=548.0, a*x=1918.0, b*y=22742.0, 总和=24660.0 [原始解]
  4. x=111, y=411.0, a*x=7603.5, b*y=17056.5, 总和=24660.0 [原始解]

18. 组合: a=68.5, b=59 (3 个有效解)
  1. x=242, y=137.0, a*x=16577.0, b*y=8083.0, 总和=24660.0 [平衡解]
  2. x=124, y=274.0, a*x=8494.0, b*y=16166.0, 总和=24660.0 [平衡解]
  3. x=6, y=411.0, a*x=411.0, b*y=24249.0, 总和=24660.0 [原始解]

19. 组合: a=68.5, b=74 (2 个有效解)
  1. x=212, y=137.0, a*x=14522.0, b*y=10138.0, 总和=24660.0 [平衡解]
  2. x=64, y=274.0, a*x=4384.0, b*y=20276.0, 总和=24660.0 [平衡解]

20. 组合: a=68.5, b=91.5 (1 个有效解)
  1. x=177, y=137.0, a*x=12124.5, b*y=12535.5, 总和=24660.0 [平衡解]

21. 组合: a=74, b=36.5 (4 个有效解)
  1. x=205, y=260.0, a*x=15170.0, b*y=9490.0, 总和=24660.0 [平衡解]
  2. x=278, y=112.0, a*x=20572.0, b*y=4088.0, 总和=24660.0 [平衡解]
  3. x=59, y=556.0, a*x=4366.0, b*y=20294.0, 总和=24660.0 [原始解]
  4. x=132, y=408.0, a*x=9768.0, b*y=14892.0, 总和=24660.0 [原始解]

22. 组合: a=74, b=41.5 (4 个有效解)
  1. x=248, y=152.0, a*x=18352.0, b*y=6308.0, 总和=24660.0 [平衡解]
  2. x=165, y=300.0, a*x=12210.0, b*y=12450.0, 总和=24660.0 [平衡解]
  3. x=82, y=448.0, a*x=6068.0, b*y=18592.0, 总和=24660.0 [原始解]
  4. x=331, y=4.0, a*x=24494.0, b*y=166.0, 总和=24660.0 [原始解]

23. 组合: a=74, b=59 (5 个有效解)
  1. x=169, y=206, a*x=12506.0, b*y=12154.0, 总和=24660.0 [平衡解]
  2. x=228, y=132, a*x=16872.0, b*y=7788.0, 总和=24660.0 [平衡解]
  3. x=51, y=354, a*x=3774.0, b*y=20886.0, 总和=24660.0 [原始解]
  4. x=110, y=280, a*x=8140.0, b*y=16520.0, 总和=24660.0 [原始解]
  5. x=287, y=58, a*x=21238.0, b*y=3422.0, 总和=24660.0 [原始解]

24. 组合: a=74, b=68.5 (2 个有效解)
  1. x=137, y=212.0, a*x=10138.0, b*y=14522.0, 总和=24660.0 [平衡解]
  2. x=274, y=64.0, a*x=20276.0, b*y=4384.0, 总和=24660.0 [平衡解]

25. 组合: a=74, b=91.5 (2 个有效解)
  1. x=81, y=204.0, a*x=5994.0, b*y=18666.0, 总和=24660.0 [平衡解]
  2. x=264, y=56.0, a*x=19536.0, b*y=5124.0, 总和=24660.0 [平衡解]

26. 组合: a=91.5, b=36.5 (4 个有效解)
  1. x=163, y=267.0, a*x=14914.5, b*y=9745.5, 总和=24660.0 [平衡解]
  2. x=236, y=84.0, a*x=21594.0, b*y=3066.0, 总和=24660.0 [平衡解]
  3. x=17, y=633.0, a*x=1555.5, b*y=23104.5, 总和=24660.0 [原始解]
  4. x=90, y=450.0, a*x=8235.0, b*y=16425.0, 总和=24660.0 [原始解]

27. 组合: a=91.5, b=41.5 (3 个有效解)
  1. x=211, y=129.0, a*x=19306.5, b*y=5353.5, 总和=24660.0 [平衡解]
  2. x=128, y=312.0, a*x=11712.0, b*y=12948.0, 总和=24660.0 [平衡解]
  3. x=45, y=495.0, a*x=4117.5, b*y=20542.5, 总和=24660.0 [原始解]

28. 组合: a=91.5, b=59 (2 个有效解)
  1. x=196, y=114.0, a*x=17934.0, b*y=6726.0, 总和=24660.0 [平衡解]
  2. x=78, y=297.0, a*x=7137.0, b*y=17523.0, 总和=24660.0 [平衡解]

29. 组合: a=91.5, b=68.5 (1 个有效解)
  1. x=137, y=177.0, a*x=12535.5, b*y=12124.5, 总和=24660.0 [平衡解]

30. 组合: a=91.5, b=74 (2 个有效解)
  1. x=204, y=81.0, a*x=18666.0, b*y=5994.0, 总和=24660.0 [平衡解]
  2. x=56, y=264.0, a*x=5124.0, b*y=19536.0, 总和=24660.0 [平衡解]

使用基础系数列表，共找到有效解

总耗时: 0.01秒

https://ideone.com/azDd0z

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Python 3 nbc (python 3.7.3)

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