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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#265275#7738. Equivalent Rewritingucup-team191#WA 3ms20744kbC++141.8kb2023-11-25 17:37:212023-11-25 17:37:22

Judging History

你现在查看的是最新测评结果

  • [2023-11-25 17:37:22]
  • 评测
  • 测评结果:WA
  • 用时:3ms
  • 内存:20744kb
  • [2023-11-25 17:37:21]
  • 提交

answer

#include <bits/stdc++.h>
#define x first
#define y second
using namespace std;
using ll=long long;
using pii=pair<int,int>;
using vi=vector<int>;
using vl=vector<ll>;
#define pb push_back
#define all(a) begin(a),end(a)

const int MAXN=300010,MOD=1e9+7;
const char en='\n';
const ll LLINF=1ll<<60;

int t, n, m;
int a[MAXN], clash[MAXN], covered[MAXN];
vector <int> v[MAXN], r[MAXN], sol;
set <int> st;

int main () {
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cin >> t;
	while (t--) {
		cin >> n >> m;
		for (int i = 1; i <= m; i++) {
			a[i] = 0;
			covered[i] = 0;
			r[i].clear();
		}
		for (int i = 1; i <= n; i++) {
			v[i].clear();
			clash[i] = 0;
			
			int len;
			cin >> len;
			for (int j = 1; j <= len; j++) {
				int x;
				cin >> x;
				v[i].push_back(x);
				a[x] = j;
			}
		}
		
		st.clear();
		for (int i = 1; i <= n; i++) {
			for (int j = 1; j <= (int)v[i].size(); j++) {
				int idx = v[i][j - 1];
				if (a[idx] != j) {
					clash[i]++;
					r[idx].push_back(i);
				}
			}
			if (clash[i] == 0) st.insert(i);
		}
		
		sol.clear();
		while (!st.empty()) {
			int i = *st.begin();
			st.erase(st.begin());
			sol.push_back(i);
			for (int j = 1; j <= (int)v[i].size(); j++) {
				int idx = v[i][j - 1];
				if (covered[idx] == 0) {
					for (auto k : r[idx]) {
						clash[k]--;
						if (clash[k] == 0) {
							st.insert(k);
						}
					}
				}
				covered[idx] = 1;
			}
		}
		reverse(sol.begin(), sol.end());
		
		bool ok = 0;
		for (int i = 1; i <= n; i++) {
			if (i != sol[i - 1]) ok = 1;
		}
		
		if (ok) {
			cout << "Yes\n";
			for (int i = 1; i <= n; i++) {
				cout << sol[i - 1];
				if (i < n) cout << " ";
			}
			cout << '\n';
		} else {
			cout << "No\n";
		}
	}
	return 0;
}




Details

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Test #1:

score: 100
Accepted
time: 0ms
memory: 20572kb

input:

3
3 6
3 3 1 5
2 5 3
2 2 6
2 3
3 1 3 2
2 3 1
1 3
2 2 1

output:

Yes
3 1 2
No
No

result:

ok OK. (3 test cases)

Test #2:

score: 0
Accepted
time: 0ms
memory: 20032kb

input:

1
10 5
2 2 4
4 1 3 4 2
1 2
3 2 1 4
4 5 2 4 3
3 2 5 4
3 5 4 2
3 1 3 2
5 1 4 2 3 5
1 4

output:

Yes
8 7 6 5 4 3 2 1 9 10

result:

ok OK. (1 test case)

Test #3:

score: -100
Wrong Answer
time: 3ms
memory: 20744kb

input:

1
20 5
5 4 1 2 5 3
2 5 3
3 5 1 2
5 4 5 1 3 2
3 4 2 5
5 3 1 5 4 2
5 5 1 2 3 4
1 3
4 5 1 2 3
4 4 1 3 5
2 5 2
4 2 3 5 1
3 2 4 5
5 2 3 4 1 5
4 5 2 4 3
1 2
2 4 3
4 4 5 3 1
5 4 1 5 3 2
3 5 1 3

output:

Yes
19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 3 1 4 2 20

result:

wrong answer two transactions are not equivalent. (test case 1)