sort colors.cpp

/*Given an array nums with n objects colored red, white, or blue, sort them in-place so that objects of the same color are adjacent, with the colors in the order red, white, and blue.

We will use the integers 0, 1, and 2 to represent the color red, white, and blue, respectively.

You must solve this problem without using the library's sort function.

*/

class Solution {
public:
    void sortColors(vector<int>& nums) {
        int n=nums.size();
        for(int i=0;i<n-1;i++)
        {
            for(int j=0;j<n-i-1;j++)
        {
           if(nums[j]>nums[j+1]) 
           {
               int temp=nums[j];
               nums[j]=nums[j+1];
               nums[j+1]=temp;
           }
        }
        }
        
    }
};