题解 | #今年的第几天？#

#include <iostream>
#include "vector"
using namespace std;
int main() {
    int day1[12] = {31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
    int day2[12] =  {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
    int year, month, day;
    vector<int> answer;
    while (scanf("%d %d %d", &year, &month, &day) != EOF) {
        int count = 0;

        if (year % 4 == 0) { //
            if (month == 1) {
                count = day;
            } else {
                for (int i = 0; i < month - 1; i++) {
                    count += day1[i];
                }
                count += day;
            }
        } else {
            if (month == 1) {
                count = day;
            } else {
                for (int i = 0; i < month - 1; i++) {
                    count += day2[i];
                }
                count += day;
            }
        }
        answer.push_back(count);
    }
    //打印结果
    for (int i = 0; i < answer.size(); i++) {
        printf("%d\n", answer[i]);
    }
    return 0;
}