#include<stdio.h>

int main()
{

int a,b,c;

printf("Enter Three integer Numbers:\n");
scanf("%d%d%d",&a,&b,&c);

if(a>b && a>c)
{
printf("Greatest Integer = %d",a);
}
else if(b>c)
{ printf("Greatest Integer = %d",b);
}
else {
printf("Greatest Integer = %d",c);
}

return 0;
}
     
           
Note: Need to be arranged in compiler after copied
   

 OutPut:

Enter Three integer Numbers: 3 5 9 Greatest Integer = 9