Program to find out greater number between two numbers in c++

#include<stdio.h>
#include<conio.h>
void main() {
int a,b;
printf("pls enter the first no.=");
scanf("%d",&a);
printf("pls enter the second no.=");
scanf("%d",&b);
if(a>b)
{
printf("First no. is greater");
}
else
{
printf("Second no. is greater");
}
getch();
}