题解 | 计算天数

#include <iostream>
using namespace std;

int main() {
    int Y, M, D;
    int m;
    cin >> m;
    int months[13] = {0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
    while (m--) {
        cin >> Y >> M >> D;
        if (Y % 4 == 0 && Y % 100 != 0 || Y % 400 == 0) {
            months[2] = 29;
        } else {
            months[2] = 28;
        }
        int count = 0;
        for (int i = 1; i <= M; i++) {
            if (i != M) {
                for (int j = 1; j <= months[i]; j++) {
                    count++;
                }
            } else {
                for (int j = 1; j <= D; j++) {
                    count++;
                }
            }
        }
        cout << count << endl;
    }
}
// 64 位输出请用 printf("%lld")