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Articles tagged with #python
Understanding the Problem A string is given with spaces. The string could be a single character or a complete sentence. It is to reverse the string by words. The spaces at the edges should be cut off. # example 1 Input: s = "the sky is blue" Output: ...
![[LeetCode] Top Interview 150 Problems Solving # 151 Reverse Words in a String](https://cdn.hashnode.com/res/hashnode/image/upload/v1743121999694/f2608574-4623-4dc3-b7a0-040bf70192eb.png)
Understanding the Problem Given strings s and t, it is to tell whether s is the subsequence to t. It is not finding if the characters in s exist in t. Well basically it is, but the sequence matters too. # example Input: s = "abc", t = "ahbgdc" Output...
![[LeetCode] Top Interview 150 Problems Solving # 392 Is Subsequence](https://cdn.hashnode.com/res/hashnode/image/upload/v1742995570790/d51c4c73-cf23-413f-8cca-ef2da016a252.png)
Understanding the Problem It is simply to find the common prefix in between the strings in the list strs. strs contains strings like strs = ["flower","flow","flight"]. In this case the common prefix will be ”fl” which is included in every string in c...
Understanding the Problem A number is given as n. Imagine that only 1 or 2 steps could be taken at once to reach the number n. For instance, if the number is 4, there are 5 ways to reach number 4. n = 4 # ways to reach n 1, 1, 1, 1 # 1 2, 1, 1 # 2 1...
Understanding the Problem There are two strings given. One is pattern, and another one is a string with spaces. If the pattern is ”abba” and the string is ”dog cat cat dog”, the first index ”a” takes ”dog”, the second index ”b” takes ”cat”, the third...
Understanding the Problem There are two strings given as haystack and needle. needle is the string that could be included in haystack or not included. If it is included, return the first index that needle occurs. If it is not included in haystack, re...