Submission

Score: 20

User: qwerty_qaz

Problemset: ปฏิทินวันแม่

Language: c

Time: 1.097 second

Submitted On: 2025-10-11 19:36:49

#include <stdio.h>

int main(){
    int month_days[] = {31, 28, 31, 30, 31, 30, 31,31,30,31,30,31};
    int m,d, sum_day=0;
    scanf("%d%d", &m,&d);
    int days_before = 11, days_after = 19;
    if(m>8){
        sum_day += days_after;
        for(int i = 8; i<m; i++){
            sum_day += month_days[i];
        }
        printf("%d", (((d) - (sum_day%7) ) + 7) %7);
    }else{
        sum_day += days_before;
        for(int i = 6; i<=m; i--){
            sum_day += month_days[i];
        }
        printf("%d", (d + (sum_day%7 +6))%7);
    }


    return 0;
}