problem no 46:sorting problem:sorting the array which only contains 0,1,2.

 QUESTION:

Given an array of size N containing only 0s, 1s, and 2s; sort the array in ascending order.

Example 1:

Input: 
N = 5
arr[]= {0 2 1 2 0}
Output:
0 0 1 2 2
Explanation:
0s 1s and 2s are segregated 
into ascending order.

Example 2:

Input: 
N = 3
arr[] = {0 1 0}
Output:
0 0 1
Explanation:
0s 1s and 2s are segregated 
into ascending order.

ANSWER:

void sort012(int a[], int n)
{
    sort(a,a+n); 
}