how to get the largest number in a c 2b 2b array

1#include <iostream>
2using namespace std;
3int main(){
4   //n is the number of elements in the array
5   int n, largest;
6   int num[50];
7   cout<<"Enter number of elements you want to enter: ";
8   cin>>n;
9   
10   /* Loop runs from o to n, in such a way that first
11    * element entered by user is stored in num[0], second 
12    * in num[1] and so on. 
13    */
14   for(int i = 0; i < n; i++) {
15      cout<<"Enter Element "<<(i+1)<< ": ";
16      cin>>num[i];
17   }
18   // Storing first array element in "largest" variable
19   largest = num[0];
20   for(int i = 1;i < n; i++) {
21      /* We are comparing largest variable with every element
22       * of array. If there is an element which is greater than
23       * largest variable value then we are copying that variable
24       * to largest, this way we have the largest element copied
25       * to the variable named "largest" at the end of the loop 
26       *
27       */
28      if(largest < num[i])
29         largest = num[i];
30   } 
31   cout<<"Largest element in array is: "<<largest;
32   return 0;
33}