C-Program to find the Square of a given number using Functions

#include<stdio.h>
#include<conio.h>
int sqre(int);
void main()
{
	int n, s;
	printf("Enter any number : ");
	scanf("%d", &n);
	s = sqre(n);
	printf("Square of given number is : %d", s);
	getch();
}
int sqre(int a)
{
	return(a*a);
}

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Output
 
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