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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#806619#9810. Obliviate, Then ReincarnatelymWA 157ms21624kbC++201.3kb2024-12-09 13:06:412024-12-09 13:06:41

Judging History

This is the latest submission verdict.

  • [2024-12-09 13:06:41]
  • Judged
  • Verdict: WA
  • Time: 157ms
  • Memory: 21624kb
  • [2024-12-09 13:06:41]
  • Submitted

answer

#include<bits/stdc++.h>
using i64 = long long;
#define int i64
using pii = std::array<int, 2>;
void solve() {
	int n, m, q;
	std::cin >> n >> m >> q;
	std::vector<std::vector<pii> > e(n);
	for (int i = 1; i <= m; i ++) {
		int u, d;
		std::cin >> u >> d;
		// if (d == 0) continue;
		int v = ((u + d) % n + n) % n;
		u = (u % n + n) % n;
		e[u].push_back({v, d});
	}
	// 0... n - 1
	std::vector<int> f(n);
	// 0 : not search
	// 1 : not to circle
	// 2 : to circle
	int op = 0;
	std::vector<int> dn(n), sum(n);
	auto dfs = [&](auto self, int u) -> int {
		dn[u] = op;
		f[u] = 1;
		int fuck = 0;
		for (auto it : e[u]) {
			int v = it[0], w = it[1];

			if (dn[v] == 0) {
				sum[v] = sum[u] + w;
				fuck |= self(self, v);
			} else if (dn[v] == op && sum[u] - sum[v] + w != 0) {
				fuck = 1;
			} else if (dn[v] != op && f[v] == 2) {
				fuck = 1;
			}
		}
		if (fuck) {
			f[u] = 2;
		}
		return fuck;
	};
	for (int i = 0; i < n; i ++) {
		if (! f[i]) {
			op = i + 1;
			sum[i] = 0;
			dfs(dfs, i);
		}
	}
	while (q --) {
		int x;
		std::cin >> x;
		x = (x % n + n) % n;
		std::cout << (f[x] == 2 ? "Yes\n" : "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;
}

/*
*/

Details

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Test #1:

score: 100
Accepted
time: 0ms
memory: 3636kb

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: 3816kb

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: 3592kb

input:

1 1 1
0 1000000000
-1000000000

output:

Yes

result:

ok "Yes"

Test #4:

score: 0
Accepted
time: 0ms
memory: 3672kb

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: 157ms
memory: 21624kb

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

result:

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