Submission #10091099
Source Code Expand
#include<iostream> using namespace std; const int MAXN=100010; int n,m,z,x,y; struct unionFind{ int fa[MAXN]; unionFind(){ for(int i=1;i<=MAXN;i++) fa[i]=i; } int find(int k){ return fa[k]=fa[k]==k?k:find(fa[k]); } void uni(int x,int y){ fa[find(x)]=find(y); } bool ask(int x,int y){ return find(x)==find(y); } }U; int main(){ cin>>n>>m; while(m--){ cin>>z>>x>>y; if(z==0) U.uni(x,y); else cout<<(U.ask(x,y)?"Yes":"No")<<endl; } return 0; }
Submission Info
Submission Time | |
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Task | B - Union Find |
User | luogu_bot5 |
Language | C++ (GCC 5.4.1) |
Score | 100 |
Code Size | 575 Byte |
Status | AC |
Exec Time | 502 ms |
Memory | 1408 KB |
Compile Error
./Main.cpp: In function ‘(static initializers for ./Main.cpp)’: ./Main.cpp:8:41: warning: iteration 100009u invokes undefined behavior [-Waggressive-loop-optimizations] for(int i=1;i<=MAXN;i++) fa[i]=i; ^ ./Main.cpp:8:22: note: containing loop for(int i=1;i<=MAXN;i++) fa[i]=i; ^
Judge Result
Set Name | Sample | All | ||||
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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 | 1 ms | 640 KB |
subtask_01_01.txt | AC | 282 ms | 1024 KB |
subtask_01_02.txt | AC | 1 ms | 640 KB |
subtask_01_03.txt | AC | 417 ms | 1408 KB |
subtask_01_04.txt | AC | 502 ms | 1152 KB |
subtask_01_05.txt | AC | 25 ms | 640 KB |
subtask_01_06.txt | AC | 28 ms | 640 KB |
subtask_01_07.txt | AC | 445 ms | 1280 KB |
subtask_01_08.txt | AC | 490 ms | 1152 KB |
subtask_01_09.txt | AC | 1 ms | 640 KB |
subtask_01_10.txt | AC | 1 ms | 640 KB |
subtask_01_11.txt | AC | 417 ms | 1280 KB |
subtask_01_12.txt | AC | 491 ms | 1280 KB |
subtask_01_13.txt | AC | 370 ms | 1152 KB |
subtask_01_14.txt | AC | 2 ms | 640 KB |
subtask_01_15.txt | AC | 430 ms | 1280 KB |
subtask_01_16.txt | AC | 492 ms | 1152 KB |
subtask_01_17.txt | AC | 342 ms | 896 KB |
subtask_01_18.txt | AC | 337 ms | 896 KB |