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

 

gaurav.gupta@mq.edu.au recursion > sumDigitsRecursive
prev  |  next  |  chance

Define a recursive function that when passed an integer, returns the sum of digits of that integer. For brownie points, write a theoretically tail-optimized version (given Java doesn't facilitate tail optimization ... yet)


sumDigitsRecursive(1729) → 19
sumDigitsRecursive(-1729) → 19
sumDigitsRecursive(-7) → 7

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

int sumDigitsRecursive(int n) { }

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: 1 Post-solution available

Copyright Nick Parlante 2017 - privacy