Submission

Score: 100

User: ChanakanStudy

Problemset: ISBN

Language: cpp

Time: 0.004 second

Submitted On: 2026-10-11 09:31:24

#include <iostream>
#include <vector>
#include <algorithm>
#include <string>
#include <cmath>
#include <queue>
#include <stack>
#include <climits>
#include <map>
#include <numeric>
#include <iomanip>
using namespace std;
using ll = long long;

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    char s[9];
    for(int i = 0;i<9;i++) {
        char temp;
        cin >> temp;
        s[i] = temp;
    }
    int sum = 0;
    for(int i = 0;i<9;i++) {
        sum += (s[i] - '0')*(10-i);
    }
    if((sum % 11) == 0) {
        cout << 0;
        return 0;
    }
    if(sum == 0){
        cout << 0;
        return 0;
    }
    cout << 11 - sum%11;
    return 0;
}