Submission #423385
Source Code Expand
#include <iostream> #include <vector> using namespace std; class UF { private: int m_size; int m_query_num; vector<int> m_data; public: UF(int s, int q) : m_size(s), m_query_num(q) {} void init(); void unit(const int a, const int b); int find(const int a); void checkSame(const int a, const int b); }; void UF::init(){ m_data.resize(m_size); for (int i = 0; i < m_size; ++i) { m_data.at(i) = i; } } // rootを探す int UF::find(const int a) { if (m_data.at(a) == a) return m_data.at(a); return (m_data.at(a) = this->find(m_data.at(a))); } void UF::unit(const int a, const int b) { int root_a = find(a); int root_b = find(b); if (root_a == root_b) return; m_data.at(root_a) = root_b; } void UF::checkSame(const int a, const int b) { int root_a = this->find(m_data.at(a)); int root_b = this->find(m_data.at(b)); if (root_a == root_b) { cout << "Yes" << endl; } else { cout << "No" << endl; } } int main() { int n, q; cin >> n >> q; UF uf(n, q); uf.init(); for (int i = 0; i < q; ++i) { int q, a, b; cin >> q >> a >> b; switch (q) { case 0: uf.unit(a, b); break; case 1: uf.checkSame(a, b); break; default: break; } } return 0; }
Submission Info
Submission Time | |
---|---|
Task | B - Union Find |
User | ryoyuki |
Language | C++11 (GCC 4.9.2) |
Score | 100 |
Code Size | 1534 Byte |
Status | AC |
Exec Time | 976 ms |
Memory | 1312 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 100 / 100 | ||||
Status |
|
|
Set Name | Test Cases |
---|---|
Sample | 00_sample_01.txt |
All | 00_sample_01.txt, subtask_01_01.txt, subtask_01_02.txt, subtask_01_03.txt, subtask_01_04.txt, subtask_01_05.txt, subtask_01_06.txt, subtask_01_07.txt, subtask_01_08.txt, subtask_01_09.txt, subtask_01_10.txt, subtask_01_11.txt, subtask_01_12.txt, subtask_01_13.txt, subtask_01_14.txt, subtask_01_15.txt, subtask_01_16.txt, subtask_01_17.txt, subtask_01_18.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
00_sample_01.txt | AC | 25 ms | 924 KB |
subtask_01_01.txt | AC | 552 ms | 924 KB |
subtask_01_02.txt | AC | 23 ms | 1192 KB |
subtask_01_03.txt | AC | 627 ms | 676 KB |
subtask_01_04.txt | AC | 976 ms | 1116 KB |
subtask_01_05.txt | AC | 65 ms | 920 KB |
subtask_01_06.txt | AC | 68 ms | 1184 KB |
subtask_01_07.txt | AC | 703 ms | 796 KB |
subtask_01_08.txt | AC | 967 ms | 1120 KB |
subtask_01_09.txt | AC | 27 ms | 804 KB |
subtask_01_10.txt | AC | 24 ms | 1312 KB |
subtask_01_11.txt | AC | 873 ms | 804 KB |
subtask_01_12.txt | AC | 934 ms | 1188 KB |
subtask_01_13.txt | AC | 708 ms | 800 KB |
subtask_01_14.txt | AC | 30 ms | 1188 KB |
subtask_01_15.txt | AC | 813 ms | 920 KB |
subtask_01_16.txt | AC | 877 ms | 1188 KB |
subtask_01_17.txt | AC | 678 ms | 1192 KB |
subtask_01_18.txt | AC | 672 ms | 1132 KB |