Submission #1189709

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Source Code Expand

#include <iostream>
#include <math.h>
using namespace std;

int main() {
    
    long long x;
    long long ans;
    
    cin >> x;
    
    if ( x <= 11 ) {
        ans = ( x > 6 ) ? 2: 1; 
    }
    else {
        ans = ( x / 11 ) * 2;
        if ( x % 11 != 0 ) {
            ans += ( ( x % 11 ) > 6 ) ? 2 : 1;
        }
    }
    
    
    cout << ans << endl;
    
    return 0;
}

Submission Info

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