Submission

Score: 100

User: polikanta

Problemset: เลขดวง

Language: cpp

Time: 0.002 second

Submitted On: 2026-10-12 19:37:39

#include <bits/stdc++.h>
using namespace std;

int main()
{
    int total , start , birth;
    cin >> total >> start >> birth;
    int lucky = 0;
    if (birth - 7 >= 1){
        lucky += birth - 7;
    }
    if (birth +  7 <= total){
        lucky += birth + 7;
    }
    int pos = (start + birth - 2) % 7 + 1;
    if (pos != 1 && birth - 1 >= 1){
        lucky += (birth -1);
    }
    if (pos != 7 && birth + 1 <= total){
        lucky += (birth + 1);
    }
    cout << lucky << endl;
    return 0;
}