QOJ.ac

QOJ

ID	题目	提交者	结果	用时	内存	语言	文件大小	提交时间	测评时间
#583604	#9356. LRU Algorithm	shift^#	WA	369ms	3828kb	C++20	2.1kb	2024-09-22 20:47:35	2024-09-22 20:47:35

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 20:47:35]
评测

测评结果：WA
用时：369ms
内存：3828kb

查看

[2024-09-22 20:47:35]
提交

answer

#include <bits/stdc++.h>

using i64 = long long;
#define int i64

bool isprime(int n) {
    if (n <= 1) {
        return false;
    }
    for (int i = 2; i * i <= n; i++) {
        if (n % i == 0) {
            return false;
        }
    }
    return true;
}

int findPrime(int n) {
    while (!isprime(n)) {
        n++;
    }
    return n;
}

std::mt19937 rng(std::chrono::steady_clock::now().time_since_epoch().count());

const int P = findPrime(rng() % 900000000 + 100000000);
const int Base = findPrime(rng() % 8000000 + 10000000);

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 = true;
        while(t -- ){
            int x;
            std::cin >> x;
            if(x) h = (h * Base + x) % P;
            else f = false;
        }
        q1[h].push_back(i);
        // 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';
    }

}

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

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

源文件, 语言: C++20

详细

Test #1:

score: 100

Accepted

time: 1ms

memory: 3828kb

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: 369ms

memory: 3684kb

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'