Package g0901_1000.s0944_delete_columns_to_make_sorted

Class Solution

java.lang.Object
g0901_1000.s0944_delete_columns_to_make_sorted.Solution
public class Solution extends Object
944 - Delete Columns to Make Sorted\. Easy You are given an array of `n` strings `strs`, all of the same length. The strings can be arranged such that there is one on each line, making a grid. For example, `strs = ["abc", "bce", "cae"]` can be arranged as: abc bce cae You want to **delete** the columns that are **not sorted lexicographically**. In the above example (0-indexed), columns 0 (`'a'`, `'b'`, `'c'`) and 2 (`'c'`, `'e'`, `'e'`) are sorted while column 1 (`'b'`, `'c'`, `'a'`) is not, so you would delete column 1. Return _the number of columns that you will delete_. **Example 1:** **Input:** strs = ["cba","daf","ghi"] **Output:** 1 **Explanation:** The grid looks as follows: cba daf ghi Columns 0 and 2 are sorted, but column 1 is not, so you only need to delete 1 column. **Example 2:** **Input:** strs = ["a","b"] **Output:** 0 **Explanation:** The grid looks as follows: a b Column 0 is the only column and is sorted, so you will not delete any columns. **Example 3:** **Input:** strs = ["zyx","wvu","tsr"] **Output:** 3 **Explanation:** The grid looks as follows: zyx wvu tsr All 3 columns are not sorted, so you will delete all 3. **Constraints:** * `n == strs.length` * `1 <= n <= 100` * `1 <= strs[i].length <= 1000` * `strs[i]` consists of lowercase English letters.

  • Constructor Details

    • Solution

      public Solution()

  • Method Details

    • minDeletionSize

      public int minDeletionSize(String[] strs)