View Code of Problem 93

#include<bits/stdc++.h>

using namespace std;

int  isfriend(int n)
{
    int sum = 0;
    for(int i = 1;i < n; ++i){
        if(n % i == 0)
            sum += i;
    }
    return sum;
}

int main()
{
    int m,n;
    cin >> m >>n;
    if(m > n) swap(m,n);
    for(int i = m;i <= n; ++i){

       if(i == isfriend(isfriend(i)) && i < isfriend(i)){
        cout << i <<" "<< isfriend(i) <<endl;
       }
    }
}