C :

#include<stdio.h>
#include<math.h>

int main()
{
	int n,a,s,i,j,l;
	scanf("%d",&n);
	for(i=1;i<=n;i++)
	{
		s=0;
	    scanf("%d",&a);
		l=sqrt((double)a);
		for(j=1;j<=l;j++)
		{
		    if(a%j==0)
			{
			    s+=j;
				if(j!=a/j)
			    {
					if(j!=1)
					{
			            s+=a/j;
					}
			    }
			}
			
		}
		if(s==a&&a!=1)
		{
		    printf("%d is perfect\n",a);
		}
		else
		{
		    printf("%d is not perfect\n",a);
		}
	
	}

    return 0;
}

C++ :

#include<stdio.h>
#include<string.h>
#include<math.h>
int main()
{
	int i,j,n,sum,a,b;
	scanf("%d",&n);
	while(n>0)
	{
		scanf("%d",&a);
		sum=1;
		if(a==1)
	    {
	    	printf("1 is not perfect\n");
	    	n--;
	    	continue;
		}
		for(i=2;i<=sqrt(a);i++)
		{
			
			if(a%i==0)
			{
				b=a/i;
				sum=sum+i+b;
			}
		}
		if(sum==a)
		printf("%d is perfect\n",a);
		else
		printf("%d is not perfect\n",a);
		
		n--;
	}
	return 0;
}