怪不得自己一直t,原来是有好多函数自己不会用,学到了
注:时钟问题只需要化为分钟来做,就会简便很多
#include <cstdio>
#include <string>
#include <cstring>
#include <iostream>
#include <algorithm>
int main()
{
std::ios::sync_with_stdio(false);
int T;
std::cin >> T;
for (int cas = 1; cas <= T; ++cas)
{
int sgn;
int a, b, x, y(0);
std::string s;
std::cin >> a >> b >> s;
sgn = (s[3] == '+' ? 1 : -1);
s = s.substr(4);//将从下标为4一直到字符串结束赋值给新字符串
if (s.size() > 2)
{
y = s.back() - '0';
s.pop_back();
s.pop_back();
}
x = std::stoi(s);//将字符串转为整数
int m = (a + 24) * 60 + b;
int c = 80;
int d = sgn * (x * 10 + y);
int e = d - c;
int f = e * 6;
int g = (m + f) % 1440;
printf("%02d:%02d\n", g / 60, g % 60);
}
return 0;
}