Submission

Score: 100

User: Whatthepoop

Problemset: ISBN

Language: c

Time: 0.001 second

Submitted On: 2025-10-12 19:08:52

#include <stdio.h>

int main(){
    int sum = 0;
    for(int i = 10; i >= 2; i--){
        int num;
        scanf("%d", &num);
        sum += num*i;
    }

    int ans = (11 - (sum%11)) % 11;

    printf("%d", ans);

    return 0;
}