Submission

Score: 15

User: qwerty_qaz

Problemset: ปฏิทินวันแม่

Language: c

Time: 0.001 second

Submitted On: 2025-10-11 19:45:33

#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 = 9; i<m; i++){   
            sum_day += month_days[i-1];
        }
        int ans = (((d - (sum_day % 7)) + 7) % 7);  
        if (ans == 0) ans = 7;                      
        printf("%d", ans);
    }else{
        sum_day += days_before;
        for(int i = m+1; i<=7; i++){                
            sum_day += month_days[i-1];
        }
        int ans = (d + (sum_day % 7)) % 7;          
        if (ans == 0) ans = 7;                  
        printf("%d", ans);
    }

    return 0;
}