/cody/pratham0709/Striver-A-TO-Z-SDE-SHEET/Array/Medium/Sort%20An%20Array%20of%200s%2C%201s%20and%202s.cpp
#include <bits/stdc++.h>
bool compare(int a, int b){
if( a < b){
return true;
}
return false;
}
void sortArray(vector<int>& arr, int n)
{
// Write your code here
sort(arr.begin(), arr.end(), compare);
}