Submission #2501438
Source Code Expand
import queue N,M=map(int,input().split()) p=[int(i)-1 for i in input().split()] x=[0 for i in range(M)] y=[0 for i in range(M)] edge=[set() for i in range(N)] for i in range(M): x[i],y[i]=map(int,input().split()) x[i]-=1;y[i]-=1 edge[x[i]].add(y[i]) edge[y[i]].add(x[i]) k=0 L=[0 for i in range(N)] q=queue.Queue() reached=[0 for i in range(N)] for i in range(N): if reached[i]==1: continue k+=1 q.put(i) reached[i]=1 L[i]=k while(not(q.empty())): r=q.get() for v in edge[r]: if not(reached[v]): q.put(v) reached[v]=1 L[v]=k ans=0 for i in range(N): if L[i]==L[p[i]]: ans+=1 print(ans)
Submission Info
Submission Time | |
---|---|
Task | D - Equals |
User | shakayami |
Language | Python (3.4.3) |
Score | 400 |
Code Size | 757 Byte |
Status | AC |
Exec Time | 1288 ms |
Memory | 58592 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 400 / 400 | ||||
Status |
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Set Name | Test Cases |
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Sample | 0_000.txt, 0_001.txt, 0_002.txt, 0_003.txt |
All | 0_000.txt, 0_001.txt, 0_002.txt, 0_003.txt, 1_004.txt, 1_005.txt, 1_006.txt, 1_007.txt, 1_008.txt, 1_009.txt, 1_010.txt, 1_011.txt, 1_012.txt, 1_013.txt, 1_014.txt, 1_015.txt, 1_016.txt, 1_017.txt, 1_018.txt, 1_019.txt, 1_020.txt, 1_021.txt, 1_022.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
0_000.txt | AC | 70 ms | 4208 KB |
0_001.txt | AC | 26 ms | 3952 KB |
0_002.txt | AC | 46 ms | 3952 KB |
0_003.txt | AC | 26 ms | 3952 KB |
1_004.txt | AC | 413 ms | 23272 KB |
1_005.txt | AC | 1288 ms | 58592 KB |
1_006.txt | AC | 1180 ms | 40928 KB |
1_007.txt | AC | 26 ms | 3952 KB |
1_008.txt | AC | 26 ms | 3952 KB |
1_009.txt | AC | 26 ms | 3952 KB |
1_010.txt | AC | 26 ms | 3952 KB |
1_011.txt | AC | 26 ms | 3952 KB |
1_012.txt | AC | 27 ms | 3952 KB |
1_013.txt | AC | 30 ms | 4080 KB |
1_014.txt | AC | 45 ms | 4848 KB |
1_015.txt | AC | 34 ms | 4208 KB |
1_016.txt | AC | 34 ms | 4208 KB |
1_017.txt | AC | 36 ms | 4208 KB |
1_018.txt | AC | 375 ms | 18308 KB |
1_019.txt | AC | 868 ms | 36192 KB |
1_020.txt | AC | 841 ms | 36192 KB |
1_021.txt | AC | 844 ms | 36192 KB |
1_022.txt | AC | 1204 ms | 41812 KB |