Output: "makkek" Explanation: Based on the equivalency information in s1 and s2, we can group their characters as [m,p], [a,o], [k,r,s], [e,i]. The characters in each group are equivalent and sorted in lexicographical order. So the answer is "makkek". Example 2: Input: s1 =...
The$userIdsvariable would be interpreted as35c1f714–46c1–4ccb-87fc-933da626ce6a_08371580–48e2–43e7–9b1c-75804b9e7e12, where the user IDs are arranged in the wrong order. What’s going on? If you work with Java everyday then the problem might be obvious to you, that to compa...
Return the lexicographically smallest string you can obtain after performing the above operation exactly once. A substring is a contiguous sequence of characters in a string. A stringxis lexicographically smaller than a stringyof the same length ifx[i]comes beforey[i]in alphabetic order for the f...
Given a string sorted in descending order, find all lexicographically previous permutations of it. In the lexicographic order, the words are arranged similarly as they are presumed to appear in a dictionary.