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

Problem 509. Count photos

Created by AMITAVA BISWAS

Given n people, everyone must have pictures taken with everyone, each photo includes only two persons, please count the total number of pictures.

Problem Group

Solution Statistics

180 correct solutions 76 incorrect solutions
Last solution submitted on Dec 13, 2014

Problem Comments

Solution Comments