delete-columns-to-make-sorted.java

https://leetcode.com/problems/delete-columns-to-make-sorted/
class Solution {
    public int minDeletionSize(String[] strs) {
          int K = strs[0].length();
        int answer = 0;
        for(int col = 0; col < K;col++){
            for(int row = 1; row < strs.length;row++){
                if(strs[row].charAt(col) < strs[row - 1].charAt(col)){
                    answer++;
                    break;
                }
            }
        }
        return answer;
    }
}