id/email
password
forgot password | create account
about | help | code help+videos | done | prefs
CodingBat code practice

 

Recursion-1 > triangle
prev  |  next  |  chance

We have triangle made of blocks. The topmost row has 1 block, the next row down has 2 blocks, the next row has 3 blocks, and so on. Compute recursively (no loops or multiplication) the total number of blocks in such a triangle with the given number of rows.


triangle(0) → 0
triangle(1) → 1
triangle(2) → 3

...Save, Compile, Run (ctrl-enter)

public int triangle(int rows) { }

Editor font size %:
Shorter output


Forget It! -- delete my code for this problem

Progress graphs:
 Your progress graph for this problem
 Random user progress graph for this problem
 Random Epic Progress Graph

Java Help

Misc Code Practice

Difficulty: 315.0 Post-solution available

Copyright Nick Parlante 2017 - privacy