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Data Structure & Algorithm | VSay Tech

Data Structure & Algorithm

Three Number Sum

  Problem Given an array of distinct integers sums and an integer representing the target sum. Find all triple...

Big O of Common Array Operations

  Array:  an array is a data structure consisting of a collection of elements (values or variables), each identified by at least one array index or key. (wikipedia) Knowing Big...

Validate Subsequence

  Problem We are given two arrays of integers nums and sequenceNums, and they are non-empty. Check whether all the numbers in...

Two Number Sum

  Problem Given an array of distinct integers sums and an integer representing the target sum. Find if there’s...