QOJ.ac

QOJ

ID	Problem	Submitter	Result	Time	Memory	Language	File size	Submit time	Judge time
#258980	#5466. Permutation Compression	kai_wei	WA	1ms	3468kb	C++20	2.6kb	2023-11-20 15:07:03	2023-11-20 15:07:05

Judging History

你现在查看的是最新测评结果

[2023-11-20 15:07:05]
评测

测评结果：WA
用时：1ms
内存：3468kb

查看

[2023-11-20 15:07:03]
提交

answer

#include <bits/stdc++.h>
using namespace std;
int main() {
    int t;
    cin >> t;
    while (t--) {
        int n, m, k;
        cin >> n >> m >> k;
        vector<int> a(n + 1), query(n + 1), tool(k + 1);
        for (int i = 1; i <= n; i++) {
            cin >> a[i];
        }
        for (int i = 1; i <= m; i++) {
            int x;
            cin >> x;
            query[x] = 1;
        }
        for (int i = 1; i <= k; i++) {
            cin >> tool[i];
        }
        sort(tool.begin() + 1, tool.end(), greater<int>());
        vector<int> st;
        vector<pair<int, int>> inter(n + 1);
        for (int i = 1; i <= n; i++) {
            while (!st.empty() && a[st.back()] < a[i]) {
                // cout << a[st.back()] << ' ' << a[i] << ' ' << i << endl;
                inter[a[st.back()]].second = i - 1;
                // 计算每个数区间的右端点
                st.pop_back();
            }
            st.push_back(i);
        }
        while (!st.empty()) {
            inter[a[st.back()]].second = n;
            st.pop_back();
        }
        for (int i = n; i >= 1; i--) {
            while (!st.empty() && a[st.back()] < a[i]) {
                inter[a[st.back()]].first = i + 1;
                // 计算每个数区间的左端点
                st.pop_back();
            }
            st.push_back(i);
        }
        while (!st.empty()) {
            inter[a[st.back()]].first = 1;
            st.pop_back();
        }
        // int cnt = 0;
        //  for (int i = 1; i <= n; i++) {
        //      cout << ++cnt << ' ';
        //      cout << inter[i].first << ' ' << inter[i].second << endl;
        //  }
        int pos = 1;
        int ans = 0;
        for (int i = n; i >= 1; i--) {
            if (query[i] == 0) {
                int len = inter[i].second - inter[i].first + 1;
                // cout << len << ' ' << i << endl;
                while (pos <= k && len < tool[pos]) {
                    pos++;
                }
                if (pos > k) {
                    ans = -1;
                    break;
                }
                pos++;
                if (i != 1 && query[i - 1] == 0) {
                    if (inter[i].first >= inter[i - 1].first && inter[i].second <= inter[i - 1].second) {
                        inter[i - 1].first = inter[i].first;
                        inter[i - 1].second = inter[i].second - 1;
                    }
                }
            }
        }
        // cout << pos << endl;
        if (ans == -1) {
            cout << "NO" << endl;
        } else {
            cout << "YES" << endl;
        }
    }
}

Source code, Language: C++20

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100

Accepted

time: 1ms

memory: 3356kb

input:

output:

YES
YES
NO

result:

ok 3 lines

Test #2:

score: -100

Wrong Answer

time: 1ms

memory: 3468kb

input:

100
2 1 2
2 1
2
1 1
2 1 2
1 2
1
2 2
2 1 1
1 2
1
2
6 1 5
3 4 2 5 6 1
3
5 2 1 1 1
6 1 6
2 1 3 6 4 5
1
4 1 2 2 1 4
3 3 2
2 1 3
2 1 3
2 2
1 1 1
1
1
1
1 1 1
1
1
1
2 1 2
2 1
2
1 2
4 4 3
2 1 3 4
2 1 3 4
4 3 1
1 1 1
1
1
1
6 5 1
6 2 5 4 3 1
6 2 4 3 1
4
1 1 1
1
1
1
6 5 3
3 6 1 4 5 2
3 6 1 4 2
3 3 4
4 3 4
3 4 ...

output:

YES
YES
YES
YES
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
YES
YES
YES
YES
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
YES
YES
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
YES
YES
YES
YES
YES
YES
NO
YES
YES
YES
YES
YES
YES
YES
NO
YES
YES
YES
YES
YE...

result:

wrong answer 5th lines differ - expected: 'YES', found: 'NO'