Problem Code: ZCO15002

Problem Link: https://www.codechef.com/ZCOPRAC/problems/ZCO15002
My logic is correct but… no any test case runs successfully!
Source Code:

#include <stdio.h>
int main(void) {
	long long int n,k,a[4000],temp=0,i;
	scanf("%lld%lld",&n,&k);
	for(i=0;i<n;i++)
	{
	    scanf("%lld",&a[i]);
	}
	for(i=0;i<n-1;i++)
	{
	    if(abs(a[i]-a[i+1])>=k)
	    {
	        temp++;
	    }
	}
	printf("%lld",temp);
	return 0;
}
//