Problem 322. Number of Circles in a Number

Given a number, return the number of closed 'circles' in the base 10 numerical representation.

Note: the number 4 has no circles


    8819 -> 5

Solution Stats

69.67% Correct | 30.33% Incorrect
Last solution submitted on Oct 26, 2016

Problem Comments

Solution Comments

Discover MakerZone

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

Learn more

Discover what MATLAB® can do for your career.

Opportunities for recent engineering grads.

Apply Today

MATLAB Academy

New to MATLAB?

Learn MATLAB today!

Join the 15-year community celebration.

Play games and win prizes!

Learn more