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Submission #841915

# Submission time Handle Problem Language Result Execution time Memory
841915 2023-09-02T08:27:56 Z borisAngelov Candies (JOI18_candies) C++17
100 / 100
 95 ms 11416 KB 
#include <bits/stdc++.h>

using namespace std;

const int maxn = 200005;
const long long inf = 2000000000000000000;

int n;

long long a[maxn];

// linked list
int l[maxn];
int r[maxn];

bool skip[maxn];

priority_queue<pair<long long, int>> pq;

void fastIO()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
}

int main()
{
    fastIO();

    cin >> n;

    for (int i = 1; i <= n; ++i)
    {
        cin >> a[i];
        pq.push(make_pair(a[i], i));

        l[i] = i - 1;
        r[i] = i + 1;
    }

    a[0] = -inf;
    a[n + 1] = -inf;

    long long ans = 0;

    for (int i = 1; i <= (n + 1) / 2; ++i)
    {
        while (skip[pq.top().second] == true)
        {
            pq.pop();
        }

        long long val = pq.top().first;
        int idx = pq.top().second;
        pq.pop();

        ans += val;
        cout << ans << "\n";

        skip[l[idx]] = true;
        skip[r[idx]] = true;

        a[idx] = a[l[idx]] + a[r[idx]] - a[idx];
        pq.push(make_pair(a[idx], idx));

        l[idx] = l[l[idx]];
        r[idx] = r[r[idx]];

        r[l[idx]] = idx;
        l[r[idx]] = idx;
    }

    return 0;
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2524 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 2 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2548 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 1 ms 2396 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 1 ms 2396 KB Output is correct
16 Correct 1 ms 2524 KB Output is correct
17 Correct 1 ms 2396 KB Output is correct
18 Correct 2 ms 2396 KB Output is correct
19 Correct 2 ms 2396 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct

Subtask #2
92.0 / 92.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2524 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 2 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2548 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 1 ms 2396 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 1 ms 2396 KB Output is correct
16 Correct 1 ms 2524 KB Output is correct
17 Correct 1 ms 2396 KB Output is correct
18 Correct 2 ms 2396 KB Output is correct
19 Correct 2 ms 2396 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct
21 Correct 84 ms 10452 KB Output is correct
22 Correct 71 ms 10700 KB Output is correct
23 Correct 77 ms 10296 KB Output is correct
24 Correct 57 ms 10264 KB Output is correct
25 Correct 59 ms 10184 KB Output is correct
26 Correct 61 ms 10620 KB Output is correct
27 Correct 65 ms 11416 KB Output is correct
28 Correct 67 ms 10432 KB Output is correct
29 Correct 72 ms 10404 KB Output is correct
30 Correct 89 ms 10780 KB Output is correct
31 Correct 72 ms 10564 KB Output is correct
32 Correct 78 ms 11204 KB Output is correct
33 Correct 71 ms 10976 KB Output is correct
34 Correct 68 ms 10172 KB Output is correct
35 Correct 69 ms 10084 KB Output is correct
36 Correct 95 ms 10408 KB Output is correct
37 Correct 77 ms 10436 KB Output is correct
38 Correct 73 ms 10412 KB Output is correct
39 Correct 60 ms 10816 KB Output is correct
40 Correct 60 ms 11028 KB Output is correct
41 Correct 75 ms 11028 KB Output is correct
42 Correct 76 ms 10432 KB Output is correct
43 Correct 75 ms 10496 KB Output is correct
44 Correct 66 ms 10432 KB Output is correct
45 Correct 68 ms 10548 KB Output is correct
46 Correct 72 ms 10496 KB Output is correct
47 Correct 82 ms 10808 KB Output is correct
48 Correct 66 ms 10176 KB Output is correct
49 Correct 86 ms 11296 KB Output is correct
50 Correct 64 ms 10956 KB Output is correct