Submission #374070

#	Time	Username	Problem	Language	Result	Execution time	Memory
374070		Nimbostratus	Akcija (COCI15_akcija)	C++17	80 / 80	18 ms	1388 KiB

akcija

#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define ub upper_bound
#define lb lower_bound
#define clean(a,s) memset((a),0,sizeof((a)[0])*(s))
#define all(x) (x).begin() , (x).end()
#define fi first
#define se second
#define int int
using pii = pair<int,int>;
using ll = long long;
const int maxn = 2e5+5;
const int inf = 2e9;
const int mod = 1e9+7;

int n,a[maxn];
ll ans;

int32_t main () {
	//freopen("in","r",stdin); freopen("out","w",stdout);
	ios_base::sync_with_stdio(0); cout.tie(0); cin.tie(0);
	cin >> n;
	for(int i=1;i<=n;i++) cin >> a[i];
	sort(a+1,a+n+1);
	for(int i=1;i<=n;i++) ans += a[i];
	for(int i=n;i>=3;i-=3) ans -= a[i-2];
	cout << ans << endl;
}	
	

• Subtask 1: 80 / 80