To find descending order of the number entered

In this programme I have given you the some concept how to arrange the the number in descending order. For this I have put one example in front of you:
The source code of this programme is :

	#include<stdio.h>
	#include<conio.h>
	void main()
	{
	int num[5];
	int a,b,help;
	printf("enter 5 numbers=");
	for(a=0;a<5;a++)
	{
	scanf("%d",&num[a]);
	}
	for(a=0;a<5;a++)
	{
	for(b=a+1;b<5;b++)
	{
	if (num[b]>num[a])
	{
	help=num[b];
	num[b]=num[a];
	num[a]=help;
	}
	}
	}
	for(a=0;a<5;a++)
	{
	printf("\n%d",num[a]);
	}
	getch();
	}

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