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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#226381#7327. Median on Binary TreePPP#WA 21ms13824kbC++172.6kb2023-10-25 21:44:542023-10-25 21:44:55

Judging History

你现在查看的是最新测评结果

  • [2023-10-25 21:44:55]
  • 评测
  • 测评结果:WA
  • 用时:21ms
  • 内存:13824kb
  • [2023-10-25 21:44:54]
  • 提交

answer

#ifdef DEBUG
#define _GLIBCXX_DEBUG
#endif
//#pragma GCC optimize("O3")
#include<bits/stdc++.h>
using namespace std;

#define pb push_back

typedef long long ll;
typedef long double ld;
int n;
const int maxN = 2e5 + 10;
int w[maxN];
vector<int> dp[maxN];
vector<int> sub[maxN];
int ans[maxN];
int TRASH[maxN];
int SZ = 0;
void solve() {
    for (int i = 1; i <= n; i++) {
        cin >> w[i];
    }
    for (int i = n; i >= 1; i--) {
        sub[i].emplace_back(w[i]);
        SZ = 0;
        if (2 * i > n) {
            SZ = 1;
            TRASH[0] = n + 1;
        }
        else if (2 * i + 1 > n) {
            SZ = sub[2 * i].size();
            for (int j = 0; j < SZ; j++) TRASH[j] = sub[2 * i][j];
        }
        else {
            merge(sub[2 * i].begin(), sub[2 * i].end() - 1, sub[2 * i + 1].begin(), sub[2 * i + 1].end(), TRASH);
            SZ = sub[2 * i].size() + sub[2 * i + 1].size() - 1;
        }
        sub[i].resize(SZ + 1);
        int fi_g = -1;
        for (int j = 0; j < SZ; j++) {
            if (TRASH[j] >= w[i]) {
                fi_g = j;
                break;
            }
        }
        assert(fi_g != -1);
        for (int p = 0; p < fi_g; p++) {
            sub[i][p] = TRASH[p];
        }
        sub[i][fi_g] = w[i];
        for (int p = fi_g; p < SZ; p++) {
            sub[i][p + 1] = TRASH[p];
        }
        dp[i].resize(sub[i].size());
        int pt_l = 0;
        int pt_r = 0;
        const int INF = -1e9;
        int Q = 0;
        for (int p : sub[i]) {
            int S = -INF;
            if (w[i] >= p) S = 1;
            else S = -1;

            if (n >= 2 * i) {
                while (sub[2 * i][pt_l] < p) pt_l++;
                assert(pt_l < sub[2 * i].size());
                S += dp[2 * i][pt_l];
            }
            if (n >= 2 * i + 1) {
                while (sub[2 * i + 1][pt_r] < p) {
                    pt_r++;
                }
                assert(pt_r < sub[2 * i + 1].size());
                S += dp[2 * i + 1][pt_r];
            }
            if (S >= 1) {
                ans[S - 1] = max(ans[S - 1], p);
            }
            S = max(S, 0);
            dp[i][Q] = S;
            Q++;
        }
    }
    for (int i = n - 2; i >= 0; i--) ans[i] = max(ans[i], ans[i + 1]);
    ans[0] = n;
    for (int i = 0; i < n; i++) cout << ans[i] << " ";
    cout << '\n';

}
int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
#ifdef DEBUG
    freopen("input.txt", "r", stdin);
#endif
    while (cin >> n) {
        solve();
    }
    return 0;
}

Details

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Test #1:

score: 100
Accepted
time: 0ms
memory: 12980kb

input:

5
1 2 3 4 5
10
9 10 4 2 3 5 7 1 8 6

output:

5 2 2 1 1 
10 9 5 4 4 3 3 2 2 1 

result:

ok 15 numbers

Test #2:

score: -100
Wrong Answer
time: 21ms
memory: 13824kb

input:

10
4 10 7 9 5 3 1 2 6 8
10
7 10 2 4 9 8 3 1 5 6
10
1 5 8 3 6 7 2 4 10 9
10
7 9 3 6 2 1 10 5 4 8
10
7 1 9 2 4 5 3 6 8 10
10
2 7 5 9 10 3 1 4 8 6
10
9 8 1 2 6 10 5 4 3 7
10
3 6 1 9 10 8 2 7 4 5
10
7 3 8 10 4 1 5 2 6 9
10
6 10 7 5 2 9 1 4 3 8
10
6 8 5 10 9 4 2 1 3 7
10
4 3 5 9 1 2 8 7 10 6
10
7 5 10 8 ...

output:

10 9 6 5 5 4 4 3 2 1 
10 9 7 6 5 4 4 3 2 1 
10 9 7 6 5 4 4 3 2 1 
10 9 7 6 5 4 4 3 2 1 
10 9 7 6 5 4 4 3 2 1 
10 9 7 7 6 4 4 3 2 1 
10 9 7 7 6 4 4 3 2 1 
10 9 7 7 6 4 4 3 2 1 
10 9 7 7 6 4 4 3 2 1 
10 9 7 7 6 4 4 3 2 1 
10 9 8 7 6 5 4 3 2 1 
10 9 8 7 6 5 4 3 2 1 
10 9 8 7 6 5 4 3 2 1 
10 9 8 7 6 5 4...

result:

wrong answer 15th numbers differ - expected: '4', found: '5'