Submission #991723
Source Code Expand
// failed to generate code #include <bits/stdc++.h> using namespace std; struct UnionFind { vector<int> data; UnionFind(int size) : data(size, -1) { } bool unionSet(int x, int y) { x = root(x); y = root(y); if (x != y) { if (data[y] < data[x]) swap(x, y); data[x] += data[y]; data[y] = x; } return x != y; } bool findSet(int x, int y) { return root(x) == root(y); } int root(int x) { return data[x] < 0 ? x : data[x] = root(data[x]); } int size(int x) { return -data[root(x)]; } }; int main(){ ios::sync_with_stdio(false); int N,M; cin >> N >> M; UnionFind uf(N+M); for(int i = 0 ; i < N ; i++){ int K; cin >> K; for(int j = 0 ; j < K ; j++){ int x; cin >> x; --x; uf.unionSet(i,N+x); } } for(int i = 0 ; i < N ; i++){ if( uf.root(i) != uf.root(0) ){ cout << "NO" << endl; return 0; } } cout << "YES" << endl; }
Submission Info
Submission Time | |
---|---|
Task | C - Interpretation |
User | kyuridenamida |
Language | C++14 (GCC 5.4.1) |
Score | 400 |
Code Size | 968 Byte |
Status | AC |
Exec Time | 17 ms |
Memory | 1024 KB |
Judge Result
Set Name | sample | dataset1 | dataset2 | ||||||
---|---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 200 / 200 | 200 / 200 | ||||||
Status |
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Set Name | Test Cases |
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sample | sample-01.txt, sample-02.txt |
dataset1 | sample-01.txt, sample-02.txt, 01-01.txt, 01-02.txt, 01-03.txt, 01-04.txt, 01-05.txt, 01-06.txt, 01-07.txt, 01-08.txt, 01-09.txt, 01-10.txt |
dataset2 | sample-01.txt, sample-02.txt, 01-01.txt, 01-02.txt, 01-03.txt, 01-04.txt, 01-05.txt, 01-06.txt, 01-07.txt, 01-08.txt, 01-09.txt, 01-10.txt, 02-01.txt, 02-02.txt, 02-03.txt, 02-04.txt, 02-05.txt, 02-06.txt, 02-07.txt, 02-08.txt, 02-09.txt, 02-10.txt, 02-11.txt, 02-12.txt, 02-13.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
01-01.txt | AC | 2 ms | 256 KB |
01-02.txt | AC | 2 ms | 256 KB |
01-03.txt | AC | 3 ms | 256 KB |
01-04.txt | AC | 2 ms | 256 KB |
01-05.txt | AC | 2 ms | 256 KB |
01-06.txt | AC | 2 ms | 256 KB |
01-07.txt | AC | 2 ms | 256 KB |
01-08.txt | AC | 2 ms | 256 KB |
01-09.txt | AC | 2 ms | 256 KB |
01-10.txt | AC | 2 ms | 256 KB |
02-01.txt | AC | 12 ms | 640 KB |
02-02.txt | AC | 15 ms | 640 KB |
02-03.txt | AC | 12 ms | 512 KB |
02-04.txt | AC | 16 ms | 896 KB |
02-05.txt | AC | 16 ms | 640 KB |
02-06.txt | AC | 16 ms | 896 KB |
02-07.txt | AC | 16 ms | 640 KB |
02-08.txt | AC | 14 ms | 640 KB |
02-09.txt | AC | 17 ms | 1024 KB |
02-10.txt | AC | 14 ms | 640 KB |
02-11.txt | AC | 14 ms | 640 KB |
02-12.txt | AC | 14 ms | 640 KB |
02-13.txt | AC | 13 ms | 640 KB |
sample-01.txt | AC | 2 ms | 256 KB |
sample-02.txt | AC | 2 ms | 256 KB |