Largest among n digit

#include<stdio.h>
#include<conio.h>
void main()
{
int max_num(int a[],int n);
int max,i,n;
int a[50];
clrscr();
printf("Enter n number:");
scanf("%d",&n);
printf("Enter the numbers:");
for(i=0;i<n;i++)
scanf("%d",&a[i]);
max=max_num(a,n);
printf("The largest number is %d",max);
getch();
}
int max_num(int a[],int n)
{
int i,m=0;
for(i=0;i<n;i++)
{
if(a[i]>m)
m=a[i];
}
return m;
}

Output:
Enter the numbers:2 5 3 7
The largest number is 7