AOH

Number of Ways to Reach a Position After Exactly k Steps solution leetcode – You are given two positive integers startPos and endPos. Initially, you are standing at position startPos on an infinite number line. With one step, you can move either one position to the left, or one position to the right. Number of Ways to Reach a Position After Exactly k … Read more

Check Distances Between Same Letters solution leetcode – You are given a 0-indexed string s consisting of only lowercase English letters, where each letter in s appears exactly twice. You are also given a 0-indexed integer array distance of length 26. Check Distances Between Same Letters solution leetcode Each letter in the alphabet is numbered from 0 to 25 (i.e. ‘a’ -> 0, ‘b’ -> 1, ‘c’ -> 2, … , ‘z’ -> 25). In … Read more