682A Codeforces - Alyona and numbers

682A Codeforces - Alyona and numbers

Link ; http://codeforces.com/problemset/problem/682/A

Solution in C++

#include <iostream>

using namespace std;

long long  n,m,sol;

int main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);cout.tie(0);
    cin>>n>>m;
    int o,t2,t3,f4,f5;
    for(int i=1;i<=5;i++)
    {
        long long ele=0;
        ele+=(m/10)*2;
        if(m%10>=5-(i%5) )ele++;
        if(m%10>=10-(i%5) )ele++;
        sol+=ele *(n/5+ (( n%5>=i )?1:0)  );
    }
    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.