Teaching Kids Programming – Prefix Sum Algorithm to Compute the Interval Sums
Teaching Kids Programming: Videos on Data Structures and Algorithms Given an array of numbers, if we want to find out the sum of the interval, we can do this …
Category: math
Complete an Arithmetic Sequence by Finding Missing Number
You are given a list of integers nums that used to be an arithmetic sequence. Given that a number was removed, and that the number was not the first …
Teaching Kids Programming – Hexadecimal Numbers Conversion
Teaching Kids Programming: Videos on Data Structures and Algorithms Algorithm to Convert Decimal Numbers to Hexadecimal Hexadecimal Numbers (base 16 because hex is 6 and decimal is 10) use …
Compute the Z Sum of a Matrix
Given an n by n integer matrix, return the sum of all elements that form a Z in the matrix. Constraints n ≤ 1,000 Example 1 Input matrix = …
Teaching Kids Programming – Compute the Intersection of the Intervals
Teaching Kids Programming: Videos on Data Structures and Algorithms Given a two-dimensional integer list intervals of the form representing intervals (inclusive), return their intersection, that is, the interval that …