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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#447654#8561. Restoring a PermutationsuomynonAWA 1ms7968kbC++201.4kb2024-06-18 17:43:052024-06-18 17:43:06

Judging History

你现在查看的是最新测评结果

  • [2024-06-18 17:43:06]
  • 评测
  • 测评结果:WA
  • 用时:1ms
  • 内存:7968kb
  • [2024-06-18 17:43:05]
  • 提交

answer

#include <bits/stdc++.h>
const int N = 2e5;
int n, a[N + 5], b[N + 5], las[N + 5], ans[N + 5], in[N + 5];
std::vector<int> v[N + 5];
std::stack<int> sta;
std::vector<int> seq;
int main() {
    std::ios::sync_with_stdio(false), std::cin.tie(0), std::cout.tie(0);
    std::cin >> n;
    for (int i = 1; i <= n; ++i) std::cin >> a[i];
    for (int i = 1; i <= n; ++i) std::cin >> b[i];
    for (int i = 1; i <= n; ++i) {
        while (sta.size() and a[sta.top()] >= a[i]) v[i].push_back(sta.top()), sta.pop();
        sta.push(i);
        if (a[i] > 1) v[las[a[i] - 1]].push_back(i);
        las[a[i]] = i;
    }
    while (sta.size()) sta.pop();
    for (int i = 1; i <= n; ++i) las[i] = 0;
    for (int i = n; i; --i) {
        while (sta.size() and b[sta.top()] >= b[i]) v[i].push_back(sta.top()), sta.pop();
        sta.push(i);
        if (b[i] > 1) v[las[b[i] - 1]].push_back(i);
        las[b[i]] = i;
    }
    for (int i = 1; i <= n; ++i) for (auto j : v[i]) ++in[j];
    seq.push_back(0);
    for (int i = 1; i <= n; ++i) if (!in[i]) seq.push_back(i);
    for (int i = 1; i <= n; ++i) {
        int p = seq[i];
        for (auto j : v[p]) {
            --in[j];
            if (!in[j]) seq.push_back(j);
        }
    }
    for (int i = 1; i <= n; ++i) ans[seq[i]] = i;
    for (int i = 1; i <= n; ++i) std::cout << ans[i] << " \n"[i == n];
    return 0;
}

Details

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Test #1:

score: 100
Accepted
time: 1ms
memory: 7968kb

input:

5
1 1 1 2 3
3 2 1 1 1

output:

5 3 1 2 4

result:

ok 

Test #2:

score: 0
Accepted
time: 0ms
memory: 7728kb

input:

6
1 1 2 2 3 3
2 1 2 1 2 1

output:

3 1 5 2 6 4

result:

ok 

Test #3:

score: 0
Accepted
time: 1ms
memory: 5616kb

input:

1
1
1

output:

1

result:

ok 

Test #4:

score: -100
Wrong Answer
time: 1ms
memory: 7664kb

input:

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

output:

5 6 7 1 8 4 9 3 2 10

result:

wrong answer GIS endinig at position 7 is 4, but 5 expected.