题解 | #今年的第几天？#

#include <stdio.h>

int main() {
    int a, b,c;
    int month[13]={0,31,28,31,30,31,30,31,31,30,31,30,31};
    while (scanf("%d %d %d", &a,&b,&c) != EOF) { 
        if (a%4==0&&a%100!=0||a%400==0) {
            month[2]=29;
        }
        int sum=0;
        for (int i=1; i<b; i++) {
            sum+=month[i];
        }
        sum+=c;
        printf("%d\n",sum);
    }
    return 0;
}