Problem 5. Triangle Numbers

Created by Cody Team in Cody Challenge

Triangle numbers are the sums of successive integers. So 6 is a triangle number because

 6 = 1 + 2 + 3

which can be displayed in a triangular shape like so

     * *
    * * * 

Thus 6 = triangle(3). Given n, return t, the triangular number for n.


 Input  n = 4
 Output t is 10

Solution Stats

66.49% Correct | 33.51% Incorrect
Last solution submitted on Jan 22, 2018

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