View Code of Problem 6

#include<stdio.h>


int main()
{
 int i,T,temp,n,l[100],r[100],a[100];
  scanf("%d",&T);
  temp=T;
  while(T--)
  {
    a[T]=1;
    scanf("%d",&n);
    for(i=0;i<n;i++)
    {
      scanf("%d%d",&l[i],&r[i]); 
    }
    for(i=0;i<n;i++)
    {
      if(i+1==r[i])
        ;
      else{a[T]=0;break;}
    }
  }


  for(i=temp-1;i>=0;i--)
  {
   if(a[i]==1)
     printf("YES\n");
    else
      printf("NO\n");
  }
  return 0;
}

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