Правильно ли я подхожу к этому вопросу?

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https://www.codechef.com/OCT19B/problems/S10E[^]

question is above from given information i have tried my best can you check the code and suggest me what's wrong in it .i am getting right output on other compiler but on submission it is showing wrong answer . 

Что я уже пробовал:

#include<iostream>
#include<algorithm>
using namespace std;

#include<stdio.h>

int main()
{ int t,n[10],i,j,k,A[10000],D[10];
 cin>>t;

for(i=0;i<t;++i)
{ D[i]=0;
int Z[100];
	
	cin>>n[i];
	
	for(j=0;j<n[i];++j)
	{
		cin>>A[j];
	}
	
	for(k=0;k<n[i];++k)  //copying array
	{
		Z[k]=A[k];
	}
	
	
	
	for(j=0;j<n[i];++j)
	{
		if(350<=A[j]&&A[j]<=750)
		{
			if(j<5)
			   { if(j==0||A[0]>A[j])
			       {
				      D[i]++;
			       }
				
			    }
			else
			   {   
			       sort(A+(j-5),A+j+1);
			        if(Z[j]==A[j-5])
			       {
			        	D[i]++;
			        }
				
			   }
		}
	}
	
 }
  for(i=0;i<t;++i)
  {
  	cout<<D[i]<<"\n";
  }
	
	return 0;
}

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