C Program to find perimeter of square using no parameter, no return type

#include”stdio.h”
#include”conio.h”
int perimeter();
void main()
{
clrscr();
getch();
}

int perimeter()
{
int n;
printf(” Enter side of square:”);
scanf(“%d”,&n);
printf(” Perimeter = %d”,n*4);
}

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