Submission #1260676


Source Code Expand

#include<stdio.h>
#include<stdlib.h>

int main(void)
{
	int n,i,j,count=0;

	scanf("%d", &n);

	int *a = (int*)malloc(n * sizeof(int));

	for (i = 0; i < n; i++) {
		scanf("%d", &a[i]);
	}

	for (i = 0; i < n ; i++) {
		if (a[a[i] - 1] == i + 1)count++;
	}
	printf("%d\n", count/2);
	free(a);
	return 0;
	
}

Submission Info

Submission Time
Task B - Friendly Rabbits
User kns330
Language C (GCC 5.4.1)
Score 200
Code Size 329 Byte
Status AC
Exec Time 11 ms
Memory 512 KB

Compile Error

./Main.c: In function ‘main’:
./Main.c:8:2: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &n);
  ^
./Main.c:13:3: warning: ignoring return value of ‘scanf’, 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 128 KB
0_01.txt AC 1 ms 128 KB
0_02.txt AC 1 ms 128 KB
1_00.txt AC 1 ms 128 KB
1_01.txt AC 11 ms 512 KB
1_02.txt AC 11 ms 512 KB
1_03.txt AC 11 ms 512 KB
1_04.txt AC 11 ms 512 KB
1_05.txt AC 11 ms 512 KB
1_06.txt AC 11 ms 512 KB
1_07.txt AC 11 ms 512 KB
1_08.txt AC 4 ms 256 KB
1_09.txt AC 9 ms 512 KB
1_10.txt AC 8 ms 384 KB
1_11.txt AC 2 ms 256 KB