Description https://leetcode.com/problems/check-if-the-sentence-is-pangram/ A pangram is a sentence where every letter of the English alphabet appears at least once. Given a string sentence containing only…

Description https://leetcode.com/problems/number-of-segments-in-a-string/ You are given a string s, return the number of segments in the string.  A segment is defined to be a contiguous…

Description https://leetcode.com/problems/truncate-sentence/ A sentence is a list of words that are separated by a single space with no leading or trailing spaces.…

Description https://leetcode.com/problems/number-of-different-integers-in-a-string/ You are given a string word that consists of digits and lowercase English letters. You will replace every non-digit character…

Description https://leetcode.com/problems/rotate-string/ We are given two strings, A and B. A shift on A consists of taking string A and moving the leftmost character to the rightmost position.…

Description https://leetcode.com/problems/second-largest-digit-in-a-string/ Given an alphanumeric string s, return the second largest numerical digit that appears in s, or -1 if it does not exist. An alphanumericstring is a…

Description https://leetcode.com/problems/confusing-number/ Given a number N, return true if and only if it is a confusing number, which satisfies the following condition: We can…

Description https://leetcode.com/problems/length-of-last-word/ Given a string s consists of some words separated by spaces, return the length of the last word in the string. If…

Description https://leetcode.com/problems/add-strings/ Given two non-negative integers, num1 and num2 represented as string, return the sum of num1 and num2 as a string. Example 1: Input: num1 = “11”, num2…

Description https://leetcode.com/problems/is-subsequence/ Given two strings s and t, check if s is a subsequence of t. A subsequence of a string is a new string that is formed from the…