Submission #3402857
Source Code Expand
import java.util.*; public class Main { public static void main(String args[]) { Scanner sc = new Scanner(System.in); int N = sc.nextInt(); int Q = sc.nextInt(); int P[] = new int[Q]; int A[] = new int[Q]; int B[] = new int[Q]; for(int i = 0; i < Q; i++) { P[i] = sc.nextInt(); A[i] = sc.nextInt(); B[i] = sc.nextInt(); } UnionFind.init(N); for(int i = 0; i < Q; i++) { if(P[i] == 0) { UnionFind.unite(A[i], B[i]); } else { if(UnionFind.same(A[i], B[i])) { System.out.println("Yes"); } else { System.out.println("No"); } } } } } class UnionFind { static int N; static int par[]; static int rank[]; public static void init(int n) { N = n; par = new int[N]; rank = new int[N]; for(int i = 0; i < N; i++) { par[i] = i; rank[i] = 0; } } public static int find(int x) { if(par[x] == x) { return x; } else { return par[x] = find(par[x]); } } public static void unite(int x, int y) { x = find(x); y = find(y); if(x == y) return; if(rank[x] < rank[y]) { par[x] = y; } else { par[y] = x; if(rank[x] == rank[y]) rank[x]++; } } public static boolean same(int x, int y) { return find(x) == find(y); } }
Submission Info
Submission Time | |
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Task | B - Union Find |
User | YK0809 |
Language | Java8 (OpenJDK 1.8.0) |
Score | 100 |
Code Size | 1305 Byte |
Status | AC |
Exec Time | 1656 ms |
Memory | 159412 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 100 / 100 | ||||
Status |
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Set Name | Test Cases |
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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 | 93 ms | 20688 KB |
subtask_01_01.txt | AC | 1118 ms | 94940 KB |
subtask_01_02.txt | AC | 94 ms | 19924 KB |
subtask_01_03.txt | AC | 1531 ms | 157728 KB |
subtask_01_04.txt | AC | 1568 ms | 158548 KB |
subtask_01_05.txt | AC | 424 ms | 51348 KB |
subtask_01_06.txt | AC | 388 ms | 45900 KB |
subtask_01_07.txt | AC | 1539 ms | 157568 KB |
subtask_01_08.txt | AC | 1656 ms | 156408 KB |
subtask_01_09.txt | AC | 101 ms | 20948 KB |
subtask_01_10.txt | AC | 113 ms | 20564 KB |
subtask_01_11.txt | AC | 1575 ms | 159348 KB |
subtask_01_12.txt | AC | 1605 ms | 159084 KB |
subtask_01_13.txt | AC | 1326 ms | 117388 KB |
subtask_01_14.txt | AC | 141 ms | 26064 KB |
subtask_01_15.txt | AC | 1523 ms | 157260 KB |
subtask_01_16.txt | AC | 1572 ms | 155760 KB |
subtask_01_17.txt | AC | 1219 ms | 150976 KB |
subtask_01_18.txt | AC | 1259 ms | 159412 KB |