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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#782679#9810. Obliviate, Then ReincarnateAndyqian7WA 371ms57948kbC++202.3kb2024-11-25 20:59:012024-11-25 20:59:05

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 20:59:05]
  • Judged
  • Verdict: WA
  • Time: 371ms
  • Memory: 57948kb
  • [2024-11-25 20:59:01]
  • Submitted

answer

#include <bits/stdc++.h>
#define int long long
#define rep(i, s, e) for (int i = s; i <= e; i++)
using namespace std;
const int N = 1e6 + 10;
vector<int> e[N], sta, com[N], ie[N];
int n, m, q, dfn[N], low[N], f[N], vis[N], dfsOrder, sccnum, ok[N], val[N];
void tarjan(int u)
{
    dfn[u] = low[u] = ++dfsOrder;
    sta.push_back(u);
    vis[u] = 1;
    for (auto &v : e[u])
    {
        if (!dfn[v])
        {
            tarjan(v);
            low[u] = min(low[u], low[v]);
        }
        else if (vis[v])
            low[u] = min(low[u], dfn[v]);
    }
    if (dfn[u] != low[u])
        return;
    ++sccnum;
    vector<int>::iterator it = (--sta.end());
    for (f[u] = sccnum, vis[u] = 0; *it != u; --it)
        f[*it] = sccnum, vis[*it] = 0;
    sta.erase(it, sta.end());
}
struct edge
{
    int to, val;
};
vector<edge> g[N];
signed main()
{
    ios::sync_with_stdio(0), cin.tie(0);
    cin >> n >> m >> q;
    rep(i, 1, m)
    {
        int a, b;
        cin >> a >> b;
        int c = b;
        a = (a % n + n) % n, b = (b % n + n) % n;
        e[a + 1].push_back((a + b) % n + 1);
        ie[(a + b) % n + 1].push_back(a + 1);
        g[a + 1].push_back({(a + b) % n + 1, c});
    }
    rep(i, 1, n) if (!dfn[i]) tarjan(i);
    rep(i, 1, n)
    {
        com[f[i]].push_back(i);
    }
    rep(i, 1, n)
        vis[i] = 0;
    rep(i, 1, sccnum)
    {
        queue<int> Q;
        Q.push(com[i][0]);
        while (Q.size())
        {
            int t = Q.front();
            Q.pop();
            vis[t] = 1;
            for (auto [son, dis] : g[t])
            {
                if (f[son] != f[t])
                    continue;
                if (vis[son])
                {
                    if (val[son] != val[t] + dis)
                        ok[i] = 1;
                }
                else
                {
                    val[son] = val[t] + dis;
                    Q.push(son);
                }
            }
        }
        if (ok[i])
            for (int j : com[i])
            {
                for (int k : ie[j])
                {
                    ok[f[k]] = 1;
                }
            }
    }
    while (q--)
    {
        int x;
        cin >> x;
        x = (x % n + n) % n;
        cout << (ok[x + 1] ? "Yes" : "No") << endl;
    }
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 5ms
memory: 9676kb

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: 5ms
memory: 9720kb

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: 5ms
memory: 11996kb

input:

1 1 1
0 1000000000
-1000000000

output:

Yes

result:

ok "Yes"

Test #4:

score: 0
Accepted
time: 5ms
memory: 10016kb

input:

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

output:

No
No
No

result:

ok 3 tokens

Test #5:

score: 0
Accepted
time: 371ms
memory: 48252kb

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:

No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
...

result:

ok 500000 tokens

Test #6:

score: -100
Wrong Answer
time: 367ms
memory: 57948kb

input:

100848 500000 500000
720352587 361776806
231853504 -933882325
960971230 -83519300
-152772415 -631132247
842871215 -666621297
857194330 -754943024
-698506963 -705416545
-3551931 -927937446
628710320 -942247987
674921043 847145884
-325629529 475694308
-339363446 686789318
236702996 654762989
420412365...

output:

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

result:

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