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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3. #include <time.h>
  4.  
  5. #define SIDES 6  
  6.  
  7. int saikoro(void) {
  8.     return (rand() % SIDES) + 1;  
  9. }
  10.  
  11. int main(void) {
  12.     int i, roll1, roll2;
  13.     int histogram[2 * SIDES + 1];  
  14.  
  15.     for (i = 0; i <= 2 * SIDES; i++) {
  16.         histogram[i] = 0;
  17.     }
  18.  
  19.     srand(time(NULL));
  20.  
  21.     for (i = 0; i < 100000; i++) {
  22.         roll1 = saikoro();  
  23.         roll2 = saikoro();  
  24.         int sum = roll1 + roll2;  
  25.         histogram[sum]++;  
  26.     }
  27.  
  28.     printf("和\t頻度\n");
  29.     for (i = 2; i <= 12; i++) {
  30.         printf("%d\t%d\n", i, histogram[i]);
  31.     }
  32.  
  33.     return 0;
  34. }
  35.  
Success #stdin #stdout 0.01s 5280KB
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stdin
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Standard input is empty
stdout
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和	頻度
2	2703
3	5535
4	8399
5	11257
6	13922
7	16758
8	13600
9	11128
10	8471
11	5516
12	2711
https://ideone.com/w24BTg
language:
C (gcc 8.3)
created:
4 days ago
visibility:
public

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