Submission

Score: 95

User: wasupum

Problemset: ISBN

Language: c

Time: 0.002 second

Submitted On: 2025-11-30 10:54:36

#include <stdio.h>

int main(void){
    int n,sum = 0;
    for(int i = 0 ; i < 9 ; i++){
        scanf("%d",&n);
        sum += (10-i)*n;
    }
    int ans = 11-sum%11;
    if(sum == 0){
        printf("%d",sum);
    }else{
        printf("%d\n",ans);
    }
    return 0;
}