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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
#781785#9810. Obliviate, Then ReincarnateKobicGendWA 288ms31856kbC++232.7kb2024-11-25 17:30:272024-11-25 17:30:28

Judging History

This is the latest submission verdict.

  • [2024-11-26 23:19:26]
  • hack成功,自动添加数据
  • (/hack/1260)
  • [2024-11-25 17:30:28]
  • Judged
  • Verdict: WA
  • Time: 288ms
  • Memory: 31856kb
  • [2024-11-25 17:30:27]
  • Submitted

answer

#include <bits/stdc++.h>
using namespace std;
using ll = long long;

struct node {
    int x;
    int id;
    int ans;
};

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

    int n, m, q;
    cin >> n >> m >> q;

    vector<vector<pair<int, int>>> E(n);
    vector<vector<int>> fan(n);
    while (m--) {
        int u, w;
        cin >> u >> w;
        int v = u + w;
        u = (u % n + n) % n;
        v = (v % n + n) % n;
        E[u].push_back({ w, v });
        fan[v].push_back(u);
    }

    vector<int> vis(n);
    vector<ll> val(n);
    vector<int> banugly(n);
    vector<int> ugly(n);
    vector<vector<pair<int, int>>> E_dag(n), E_back(n);
    for (int i = 0; i < n; i++) {
        if (vis[i]) continue;
        auto dfs = [&](auto&& self, int u) -> void {
            vis[u] = 1;
            for (auto [w, v] : E[u]) {
                if (vis[v] == 0) {   // tree edge
                    E_dag[u].push_back({ w, v });
                    val[v] = val[u] + w;
                    self(self, v);
                } else if (vis[v] == 1) {  // back edge
                    E_back[u].push_back({ w, v });
                    if (val[u] + w != val[v]) {
                        ugly[v] = 1;
                    }
                } else {  // cross edge or forward edge
                    E_dag[u].push_back({ w, v });
                    if (val[u] + w != val[v]) {
                        banugly[v] = 1;
                    }
                }
            }
            vis[u] = 2;
        };
        dfs(dfs, i);
    }

    E = E_dag;
    vis.assign(n, 0);
    for (int i = 0; i < n; i++) {
        if (vis[i]) continue;
        auto dfs = [&](auto&& self, int u) -> void {
            vis[u] = 1;
            for (auto [w, v] : E[u]) {
                if (banugly[v]) continue;
                if (banugly[u]) {
                    banugly[v] = 1;
                    self(self, v);
                }
            }
            vis[u] = 2;
        };
        dfs(dfs, i);
    }


    for (int u = 0; u < n; u++) {
        for (auto [w, v] : E_back[u]) {
            if (banugly[u]) {
                ugly[v] = 1;
            }
        }
    }

    queue<int> Q;
    for (int u = 0; u < n; u++) {
        if (ugly[u]) Q.push(u);
    }

    while (!Q.empty()) {
        int u = Q.front(); Q.pop();
        for (auto v : fan[u]) {
            if (ugly[v]) continue;
            ugly[v] = 1;
            Q.push(v);
        }
    }

    while (q--) {
        int u;
        cin >> u;
        u = (u % n + n) % n;
        cout << (ugly[u] ? "Yes" : "No") << endl;
    }
    

    return 0;
}

详细

Test #1:

score: 100
Accepted
time: 0ms
memory: 3848kb

input:

3 2 3
1 1
-1 3
1
2
3

output:

Yes
Yes
No

result:

ok 3 tokens

Test #2:

score: 0
Accepted
time: 0ms
memory: 3812kb

input:

3 2 3
1 1
-1 0
1
2
3

output:

No
No
No

result:

ok 3 tokens

Test #3:

score: 0
Accepted
time: 0ms
memory: 3620kb

input:

1 1 1
0 1000000000
-1000000000

output:

Yes

result:

ok "Yes"

Test #4:

score: 0
Accepted
time: 0ms
memory: 3560kb

input:

3 2 3
0 1000000000
1 -1000000000
-1000000000
0
-1000000000

output:

No
No
No

result:

ok 3 tokens

Test #5:

score: -100
Wrong Answer
time: 288ms
memory: 31856kb

input:

50134 500000 500000
-154428638 -283522863
-186373509 -327130969
154999046 46750274
-933523447 349415487
-437683609 140099255
864996699 -262318199
811293034 -264299324
120273173 52410685
874944410 -52048424
445049930 -803690605
-138111276 -104634331
720288580 126597671
471164416 -348777147
-356502322...

output:

Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
...

result:

wrong answer 1st words differ - expected: 'No', found: 'Yes'