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  1. #include <stdio.h>
  2.  
  3. i,j,c;f(a,n)int*a;{for(c=i=0;i<n;++i)for(j=0,c+=!!a[i];a[i];a[i]=0,i=j-1)j=a[i];return c;}
  4.  
  5. int main(void) {
  6. 	int a[] = {4,2,5,11,12,7,1,3,9,10,6,8};
  7. 	printf("%d", f(a,sizeof(a)/sizeof(*a)));
  8. 	return 0;
  9. }
  10.  
Success #stdin #stdout 0s 2112KB
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5
https://ideone.com/WkVZ6m
language:
C (gcc 8.3)
created:
7 years ago
visibility:
public

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