Submission #1590599


Source Code Expand

#include    <iostream>
using namespace std;

int main(void){
    // Here your code !
    int n,ans=0;
    scanf("%d",&n);
    
    int a[n];
    for(int i=0;i<n; i++){
        scanf("%d",&a[i]);
        a[i]--;
    }
    for(int i=0;i<n;i++){
        if(a[i]>i){
            if(a[a[i]]==i){
                ans++;
            }
        }
    }
    printf("%d\n",ans);
}

Submission Info

Submission Time
Task B - Friendly Rabbits
User appllluna
Language C++14 (GCC 5.4.1)
Score 200
Code Size 392 Byte
Status AC
Exec Time 11 ms
Memory 640 KB

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:8:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d",&n);
                   ^
./Main.cpp:12:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d",&a[i]);
                          ^

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 200 / 200
Status
AC × 3
AC × 15
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 1 ms 256 KB
0_01.txt AC 1 ms 256 KB
0_02.txt AC 1 ms 256 KB
1_00.txt AC 1 ms 256 KB
1_01.txt AC 10 ms 640 KB
1_02.txt AC 10 ms 640 KB
1_03.txt AC 10 ms 640 KB
1_04.txt AC 11 ms 640 KB
1_05.txt AC 11 ms 640 KB
1_06.txt AC 11 ms 640 KB
1_07.txt AC 10 ms 640 KB
1_08.txt AC 5 ms 384 KB
1_09.txt AC 9 ms 512 KB
1_10.txt AC 8 ms 512 KB
1_11.txt AC 3 ms 256 KB