Submission #3053199

---

Source Code Expand

#include<bits/stdc++.h>
#define ll long long
#define pb push_back
using namespace std;

const int mnx = 3e5 + 9;
const int mod = 1e9 + 7;

ll n;
ll a[mnx];

int main(){

cin>>n;

n += n;;

for(int i=1; i<=n; i++){
    cin>>a[i];
}

sort(a + 1, a + n + 1);

ll sum = 0;

for(int i=1; i<=n; i+=2){
    sum += min(a[i], a[i + 1]);
}

cout<<sum<<'\n';

return 0;

}

Submission Info

Judge Result