Submission #3435454

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Source Code Expand

#include<bits/stdc++.h>
#define FOR(i, a, b) for (int i = (a); i < (b); ++i)
#define REP(i, n) for (int i = 0; i < (n); ++i)
#define int long long
#define vec(a,n) vector<int> (a)((n))
#define Vec(a,n) vector<string> (a)((n))
using namespace std;
signed main(){
	int n,ans=0;
	cin >> n;
	vec(a,n);
	REP(i,n){
		cin >> a[i];
	}
	sort(a.begin(),a.end());
	REP(i,n){
		if(i%2 == 0){
			ans += a[i];
		}
	}
	cout << ans << endl;
    return 0;
}

Submission Info

Judge Result