MATLAB and Simulink resources for Arduino, LEGO, and Raspberry Pi

Learn moreOpportunities for recent engineering grads.

Apply TodayThis problem concerns the so-called balanced ternary system for representing numbers. It is a Base 3 system in which the digits can be 1, 0, or -1.

In balanced ternary, the number 8 would be represented as 9 (or 3^2) minus 1 (or 3^0). Typographically we will use "|" for one, "o" for zero (that's a lower-case O), and "-" for negative one. So if the decimal input d is the number 8, the balanced ternary output is the string "|o-". Thus

dec 8 => bt "|o-"

Here are some more examples.

dec 3 => bt "|o" dec 15 => bt "|--o" dec 52 => bt "|-o-|"

Given an integer d, return the string bt. Leading zeros should always be suppressed.

8 correct solutions
4 incorrect solutions

Last solution submitted on Feb 28, 2013