#include <iostream>
#include <vector>
#include <map>
#include <cassert>
#include <set>
#include <algorithm>
#define FOR(i, a, b) for(int i = a; i < (int) b; i++)
#define F0R(i, a) FOR (i, 0, a)
#define ROF(i, a, b) for(int i = a; i >= (int) b; i--)
#define R0F(i, a) ROF(i, a, 0)
#define GO(i, a) for (auto i : a)
#define eb emplace_back
#define sz(x) (int) x.size()
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define f first
#define s second
using namespace std;
typedef long long i64;
typedef pair<int, int> pii;
typedef vector<int> vi;
typedef vector<pii> vpii;
typedef vector<vi> vvi;
typedef vector<vpii> vvpii;
typedef vector<i64> vi64;
const int dr[] = {+1, -1, +0, +0, +1, -1, -1, +1};
const int dc[] = {+0, +0, +1, -1, +1, -1, +1, -1};
/*
const int dc[] = {+2, +2, -2, -2, +1, -1, +1, -1};
const int dr[] = {+1, -1, +1, -1, +2, +2, -2, -2};
*/
//const int m[] = {+31, +29, +31, +30, +31, +30, +31, +31, +30, +31, +30, +31};
int main() {
ios::sync_with_stdio(0);
cin.tie(0);
string w;
int n;
cin >> n;
vi a (n);
F0R (i, n) cin >> a[i];
sort (rall(a));
int res = 0;
while ( (n % 3) != 0 ) {
res += a.back();
a.pop_back();
--n;
}
F0R (i, n) {
res += a[i];
if (i + 1 < n) res += a[i + 1];
i += 2;
}
cout << res << '\n';
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
5 ms |
380 KB |
Output is correct |
2 |
Correct |
5 ms |
376 KB |
Output is correct |
3 |
Correct |
5 ms |
376 KB |
Output is correct |
4 |
Correct |
5 ms |
376 KB |
Output is correct |
5 |
Correct |
5 ms |
376 KB |
Output is correct |
6 |
Correct |
18 ms |
1144 KB |
Output is correct |
7 |
Correct |
14 ms |
1144 KB |
Output is correct |
8 |
Correct |
13 ms |
1164 KB |
Output is correct |
9 |
Correct |
23 ms |
1272 KB |
Output is correct |
10 |
Correct |
24 ms |
1400 KB |
Output is correct |