#include <stdio.h>
#include <stdlib.h>
#include <time.h>

int main(void)
{
    int ans, a;
    int low = 0, high = 99;
    int count = 0;

    srand(time(0));
    ans = rand() % 100;  

    do {
        a = rand() % (high - low + 1) + low;
        count++;

        printf("コンピュータの予想：%d\n", a);

        if (a < ans) {
            printf("→ 小さい\n");
            low = a + 1;
        } else if (a > ans) {
            printf("→ 大きい\n");
            high = a - 1;
        }

    } while (a != ans);

    printf("正解！%d回で当てました\n", count);

    return 0;
}