Submission #1500185


Source Code Expand

#include<iostream>
#include<cstdio>
#include<string>
#include<algorithm>
#define REP(i,n) for(int i=0;i<(n);i++)
using namespace std;
int main(){
	long int n,a[100000],ans=0;
	cin>>n;
	for(int i=0;i<n;i++){
		cin>>a[i];
	}
	for(int i=0;i<n;i++){
		if(a[a[i+1]]==i){
			ans++;
		}
	}
	cout<<ans/2<<std::endl;
	return 0;
}

Submission Info

Submission Time
Task B - Friendly Rabbits
User mamime19
Language C++14 (GCC 5.4.1)
Score 0
Code Size 339 Byte
Status RE
Exec Time 136 ms
Memory 1024 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 0 / 200
Status
WA × 3
AC × 1
WA × 7
RE × 7
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 WA 1 ms 256 KB
0_01.txt WA 1 ms 256 KB
0_02.txt WA 1 ms 256 KB
1_00.txt WA 1 ms 256 KB
1_01.txt RE 133 ms 1024 KB
1_02.txt RE 132 ms 1024 KB
1_03.txt RE 132 ms 1024 KB
1_04.txt RE 134 ms 1024 KB
1_05.txt RE 136 ms 1024 KB
1_06.txt RE 132 ms 1024 KB
1_07.txt RE 133 ms 1024 KB
1_08.txt AC 14 ms 512 KB
1_09.txt WA 31 ms 896 KB
1_10.txt WA 25 ms 768 KB
1_11.txt WA 7 ms 384 KB