Codeforces 1092B. Teams Forming Solution
Solve in C++:
//AH Tonmoy
//Department of CSE ,Islamic University
#include<bits/stdc++.h>
using namespace std;
int main()
{
int n,ar[1000],i,j,s=0;
while(cin>>n)
{
for(i=0; i<n; i++)
{
cin>>ar[i];
}
sort(ar,ar+n);
for(i=0; i<n; i=i+2)
{
s=s+abs(ar[i+1]-ar[i]);
}
cout<<s<<endl;
s=0;
}
}
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