LeetCode 960: Delete Columns to Make Sorted III
Problem Restatement We are given an array strs of equal-length strings. We may delete any set of column indices. When we delete a column, that position is removed from every string. After deletions, every remaining row must be lexicographically sorted by itself: strs[row][0] <= strs[row][1] <= strs[row][2] <= ... Return the minimum number of deleted columns. Important: the array of strings does not need to be sorted. Each individual row...