Submission

Score: 95

User: winwin1054

Problemset: ISBN

Language: c

Time: 0.002 second

Submitted On: 2025-11-19 20:13:08

#include <stdio.h>

int main() {
    // Write C code here
    int a[9],sum,c;
    sum = 0;
    for(int i=0;i<9;i++)
    {
        scanf("%d",&a[i]);
    }
    for(int i=0;i<9;i++)
    {
        sum += (10-i) * a[i];
    }
    for(int i=0;i<=9;i++)
    {
        if((sum + i)%11==0)
        {
            c = i;
            break;
        }
    }
    printf("%d",c);
}