Submission #891048
Source Code Expand
#include<bits/stdc++.h> using namespace std; typedef long long LL; typedef pair<int,int> PII; int main() { int N; cin >> N; vector<int> input; for(int i=0; i<N; i++) { int p; cin >> p; input.push_back(p-1); } int cnt = 0; for(int i=0; i<N; i++) if( i == input[input[i]]) cnt++; cnt /= 2; cout << cnt << endl; return 0; }
Submission Info
Submission Time | |
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Task | B - Friendly Rabbits |
User | tokoharu |
Language | C++14 (GCC 5.4.1) |
Score | 200 |
Code Size | 365 Byte |
Status | AC |
Exec Time | 31 ms |
Memory | 1020 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 200 / 200 | ||||
Status |
|
|
Set Name | Test Cases |
---|---|
Sample | 0_00.txt, 0_01.txt, 0_02.txt |
All | 0_00.txt, 0_01.txt, 0_02.txt, 1_00.txt, 1_01.txt, 1_02.txt, 1_03.txt, 1_04.txt, 1_05.txt, 1_06.txt, 1_07.txt, 1_08.txt, 1_09.txt, 1_10.txt, 1_11.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
0_00.txt | AC | 3 ms | 256 KB |
0_01.txt | AC | 3 ms | 256 KB |
0_02.txt | AC | 2 ms | 256 KB |
1_00.txt | AC | 2 ms | 256 KB |
1_01.txt | AC | 31 ms | 892 KB |
1_02.txt | AC | 31 ms | 892 KB |
1_03.txt | AC | 31 ms | 892 KB |
1_04.txt | AC | 31 ms | 892 KB |
1_05.txt | AC | 31 ms | 892 KB |
1_06.txt | AC | 31 ms | 892 KB |
1_07.txt | AC | 31 ms | 892 KB |
1_08.txt | AC | 13 ms | 640 KB |
1_09.txt | AC | 26 ms | 1020 KB |
1_10.txt | AC | 22 ms | 892 KB |
1_11.txt | AC | 7 ms | 384 KB |