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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#583495#9356. LRU Algorithmshift#WA 454ms3728kbC++201.6kb2024-09-22 20:14:332024-09-22 20:14:34

Judging History

你现在查看的是最新测评结果

  • [2024-09-26 19:14:31]
  • hack成功,自动添加数据
  • (/hack/913)
  • [2024-09-26 19:12:47]
  • hack成功,自动添加数据
  • (/hack/912)
  • [2024-09-22 20:14:34]
  • 评测
  • 测评结果:WA
  • 用时:454ms
  • 内存:3728kb
  • [2024-09-22 20:14:33]
  • 提交

answer

#include <bits/stdc++.h>

using i64 = long long;

constexpr int Base = 1145141;
constexpr int P = 998244353;

void solve() {
    int n, q;
    std::cin >> n >> q;

    std::vector<i64> h(n + 1), a(n);
    for(int i = 0; i < n; i ++ ) {
        std::cin >> a[i];
    }
    
    std::vector<bool> ans(q);
    std::unordered_map<int, std::vector<int>> q1, q2;
    for(int i = 0; i < q; i ++ ) {
        int t;
        std::cin >> t;
        i64 h = 0, f = 1;
        for(int j = 0; j < t; j ++ ) {
            int x;
            std::cin >> x;
            if(x) h = (h * Base + x) % P;
            else f = 0;
        }
        if(f) {
            q1[h].push_back(i);
        } else {
            q2[h].push_back(i);
        }
    }

    for(int i = 0; i < n; i ++ ) {
        std::vector<bool> vis(n + 1);
        i64 h = 0;
        for(int j = i; j >= 0; j -- ) {
            if(not vis[a[j]]) {
                vis[a[j]] = true;
                h = (h * Base + a[j]) % P;
                if(q1.count(h)) {
                    for(auto x : q1[h]) {
                        ans[x] = true;
                    }
                    q1.erase(h);
                }
            }
        }
        if(q2.count(h)) {
            for(auto x : q2[h]) {
                ans[x] = true;
            }
            q2.erase(h);
        }
    }
    
    for(int i = 0; i < q; i ++ ) {
        std::cout << (ans[i] ? "Yes" : "No") << '\n';
    }

}

int main() {
    std::ios::sync_with_stdio(false);
    std::cin.tie(nullptr);

    int T = 1;
    std::cin >> T;
    while(T -- ) {
        solve();
    }
    return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 1ms
memory: 3524kb

input:

1
7 5
4 3 4 2 3 1 4
1 4
2 2 3
3 3 2 1
4 4 1 3 2
4 3 4 0 0

output:

Yes
No
No
Yes
Yes

result:

ok 5 lines

Test #2:

score: -100
Wrong Answer
time: 454ms
memory: 3728kb

input:

105
50 10
23 30 34 20 27 11 21 29 12 7 21 42 45 48 8 15 6 16 19 35 16 14 29 11 31 18 22 4 45 22 14 4 13 40 43 48 27 15 15 15 15 10 15 11 31 37 34 34 50 14
1 25
2 23 6
3 29 21 11
4 12 29 18 39
5 29 21 11 27 20
6 21 10 9 3 34 14
7 49 36 36 43 50 50 35
8 12 29 21 11 27 20 34 30
9 11 27 20 34 30 23 0 0 ...

output:

No
No
Yes
No
Yes
No
No
Yes
Yes
No
Yes
Yes
Yes
Yes
No
Yes
No
No
No
Yes
Yes
Yes
No
No
No
No
Yes
Yes
Yes
No
No
No
No
Yes
Yes
Yes
No
No
No
No
No
No
No
No
Yes
No
No
No
Yes
Yes
Yes
Yes
No
No
Yes
No
No
No
Yes
Yes
Yes
Yes
No
No
Yes
No
No
No
Yes
No
Yes
No
Yes
No
Yes
No
No
No
Yes
Yes
Yes
No
No
No
No
No
No
Yes...

result:

wrong answer 44th lines differ - expected: 'Yes', found: 'No'