Design a Last Value Map in C++
Implement a data structure LastValueMap which has the following methods: void set(int key, int value) which associates key with value. void remove(int key) which removes key and its associated …
Tag: c++
Compute Longest Substring with At Least K Repeating Characters via Divide and Conquer Algorithm
Given a string s and an integer k, return the length of the longest substring of s such that the frequency of each character in this substring is greater …
Consecutive Ones Algorithm
You are given a list of integers nums which contains at least one 1. Return whether all the 1s appear consecutively. Constraints 1 ≤ n ≤ 100,000 where n …
Algorithms to Compute the Minimal Number of Hops
Given an integer list nums where each number represents the maximum number of hops you can make, return the minimum number of hops it would take to reach the …
Construct a Spiral Matrix using Simulation Algorithm
Given a 2-d array matrix, return elements in spiral order starting from matrix. Constraints n, m ≤ 250 where n and m are the number of rows and columns …