rand() % (b - a + 1) + a：生成a~b的随机整数

造数据模板

#include <bits/stdc++.h>
using namespace std;
void zh(string sss, char xxx[]) {
    for (int i = 0; i < sss.size(); ++i) {
        xxx[i] = sss[i];
    }
    return;
}
int main() {
    srand((unsigned)time(NULL));
    for (int i = 1; i <= 95; ++i) {
        string xxx = "water" + to_string(i) + ".in";
        char sss[10005], ddd[10005];
        zh(xxx, sss);
        freopen(sss, "w", stdout);
        
        long long a = 0, b = 0, c = 0, d = 0;
		string str1 = "", str2 = "";

        cout; // 输入样例

        xxx = "water" + to_string(i) + ".out";
        zh(xxx, ddd);

        freopen(sss, "r", stdin);
        freopen(ddd, "w", stdout);

        cout; // 输出样例
    }
    return 0;
}