01 #include<stdio.h>
02 
03 int main()
04 {
05     int max_num(int a[],int n);
06     int max,i,n;
07     int a[50];
08 
09     printf("Enter n number:");
10     scanf("%d",&n);
11     printf("Enter the numbers:");
12     for(i=0; i<n; i++)
13         scanf("%d",&a[i]);
14     max=max_num(a,n);
15     printf("The largest number is %d",max);
16 
17     return 0;
18 }
19 
20 int max_num(int a[],int n)
21 {
22     int i,m=0;
23     for(i=0; i<n; i++)
24     {
25         if(a[i]>m)
26             m=a[i];
27     }
28     return m;
29 }

OUTPUT :
 
 
 Enter n number:5
 Enter the numbers:12
 22
 43
 55
 17
 The largest number is 55