1092B Teams Forming codeforces solution in cpp

 

1092B Teams Forming codeforces solution in cpp

by ujjal roy

#include<bits/stdc++.h>

using namespace std;

main()

{

    int n,i,sum=0;

    cin>>n;

    int a[n];

    for(i=0;i<n;i++) cin>>a[i];

    sort(a,a+i);

    for(i=0;i<n;i+=2)sum+=a[i+1]-a[i];

    cout<<sum<<endl;

    return 0;

}