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Beginner Series #3 Sum of Numbers

  • Completed at: 2023-10-11T04:19:17.588Z

  • Completed languages: java

  • Tags: Fundamentals, Algorithms

  • Rank: 7 kyu

Description

Given two integers a and b, which can be positive or negative, find the sum of all the integers between and including them and return it. If the two numbers are equal return a or b.

Note: a and b are not ordered!

Examples (a, b) --> output (explanation)

(1, 0) --> 1 (1 + 0 = 1)
(1, 2) --> 3 (1 + 2 = 3)
(0, 1) --> 1 (0 + 1 = 1)
(1, 1) --> 1 (1 since both are same)
(-1, 0) --> -1 (-1 + 0 = -1)
(-1, 2) --> 2 (-1 + 0 + 1 + 2 = 2)

Your function should only return a number, not the explanation about how you get that number.