oj.uz

Submission #136504

# Submission time Handle Problem Language Result Execution time Memory
136504 2019-07-25T11:42:36 Z Osama_Alkhodairy Candies (JOI18_candies) C++17
100 / 100
 1046 ms 27512 KB 
#include <bits/stdc++.h>
using namespace std;
#define finish(x) return cout << x << endl, 0
#define ll long long

int n;
vector <ll> a;

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cin >> n;
    a.resize(n + 2);
    set <int> alive;
    set <pair <ll, int> > s;
    for(int i = 1 ; i <= n ; i++){
        cin >> a[i];
        s.insert(make_pair(a[i], i));
        alive.insert(i);
    }
    a[0] = a[n + 1] = -1e18;
    alive.insert(0);
    alive.insert(n + 1);
    ll ans = 0;
    for(int itt = 0 ; itt < (n + 1) / 2 ; itt++){
        auto top = *--s.end();
        s.erase(--s.end());
        ans += top.first;
        cout << ans << endl;
        int pos = top.second;
        alive.erase(pos);
        a[pos] *= -1;
        auto it = alive.upper_bound(pos);
        if(it != alive.end()){
            a[pos] += a[*it];
            s.erase(make_pair(a[*it], *it));
            alive.erase(*it);
        } 
        it = alive.upper_bound(pos);
        if(it != alive.begin()){
            it--;
            a[pos] += a[*it];
            s.erase(make_pair(a[*it], *it));
            alive.erase(*it);
        }
        alive.insert(pos);
        s.insert(make_pair(a[pos], pos));
    }
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 632 KB Output is correct
2 Correct 8 ms 632 KB Output is correct
3 Correct 7 ms 632 KB Output is correct
4 Correct 7 ms 632 KB Output is correct
5 Correct 7 ms 632 KB Output is correct
6 Correct 7 ms 628 KB Output is correct
7 Correct 7 ms 632 KB Output is correct
8 Correct 7 ms 632 KB Output is correct
9 Correct 7 ms 632 KB Output is correct
10 Correct 7 ms 632 KB Output is correct
11 Correct 8 ms 636 KB Output is correct
12 Correct 8 ms 632 KB Output is correct
13 Correct 7 ms 632 KB Output is correct
14 Correct 7 ms 632 KB Output is correct
15 Correct 8 ms 636 KB Output is correct
16 Correct 7 ms 632 KB Output is correct
17 Correct 8 ms 632 KB Output is correct
18 Correct 7 ms 632 KB Output is correct
19 Correct 7 ms 632 KB Output is correct
20 Correct 7 ms 632 KB Output is correct

Subtask #2
92.0 / 92.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 632 KB Output is correct
2 Correct 8 ms 632 KB Output is correct
3 Correct 7 ms 632 KB Output is correct
4 Correct 7 ms 632 KB Output is correct
5 Correct 7 ms 632 KB Output is correct
6 Correct 7 ms 628 KB Output is correct
7 Correct 7 ms 632 KB Output is correct
8 Correct 7 ms 632 KB Output is correct
9 Correct 7 ms 632 KB Output is correct
10 Correct 7 ms 632 KB Output is correct
11 Correct 8 ms 636 KB Output is correct
12 Correct 8 ms 632 KB Output is correct
13 Correct 7 ms 632 KB Output is correct
14 Correct 7 ms 632 KB Output is correct
15 Correct 8 ms 636 KB Output is correct
16 Correct 7 ms 632 KB Output is correct
17 Correct 8 ms 632 KB Output is correct
18 Correct 7 ms 632 KB Output is correct
19 Correct 7 ms 632 KB Output is correct
20 Correct 7 ms 632 KB Output is correct
21 Correct 1016 ms 27472 KB Output is correct
22 Correct 1033 ms 27448 KB Output is correct
23 Correct 1002 ms 27432 KB Output is correct
24 Correct 610 ms 27192 KB Output is correct
25 Correct 611 ms 27056 KB Output is correct
26 Correct 613 ms 27256 KB Output is correct
27 Correct 621 ms 27384 KB Output is correct
28 Correct 619 ms 27400 KB Output is correct
29 Correct 628 ms 27376 KB Output is correct
30 Correct 638 ms 27252 KB Output is correct
31 Correct 640 ms 27508 KB Output is correct
32 Correct 639 ms 27376 KB Output is correct
33 Correct 779 ms 27128 KB Output is correct
34 Correct 804 ms 27088 KB Output is correct
35 Correct 778 ms 27248 KB Output is correct
36 Correct 1046 ms 27324 KB Output is correct
37 Correct 993 ms 27296 KB Output is correct
38 Correct 1010 ms 27356 KB Output is correct
39 Correct 607 ms 27128 KB Output is correct
40 Correct 636 ms 27128 KB Output is correct
41 Correct 605 ms 27252 KB Output is correct
42 Correct 619 ms 27384 KB Output is correct
43 Correct 633 ms 27356 KB Output is correct
44 Correct 621 ms 27504 KB Output is correct
45 Correct 641 ms 27200 KB Output is correct
46 Correct 639 ms 27512 KB Output is correct
47 Correct 648 ms 27384 KB Output is correct
48 Correct 782 ms 27052 KB Output is correct
49 Correct 779 ms 27128 KB Output is correct
50 Correct 796 ms 27128 KB Output is correct