540A codeforces - Combination Lock

540A codeforces 

Combination Lock

Solution in c++

#include <iostream>

#include <cmath>

using namespace std;

int main()

{

    int a,sol=0;

    cin>>a;

    string aa,bb;

    cin>>aa>>bb;

    for(int i=0;i<a;i++){

        int j=abs(aa[i]-bb[i]);

        int k=(aa[i]-'0');

            k+=(9-(bb[i]-'0'));

        int l=(bb[i]-'0');

            l+=(9-(aa[i]-'0'));

        sol+=min(j,min(k+1,l+1));

    }

    cout<<sol;

    return 0;

}

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About Mohamed Sobhi

My name is Mo.Sobhy ,I study at School excelling high school in Ain Shams ,Cairo
My hobbies is programming ,and web development ,playing chess and writing horror stories.