Problem 2176. Which way to go?

Created by Zikobrelli

Solve Later

Given an m*n grid,

How many ways are there to go from upper left corner to the lower right one?

You can only move right and down, not up or left

Solve

Solution Stats

55 Solutions
37 Solvers

Last Solution submitted on Apr 08, 2020

Last 200 Solutions

Problem Comments

3 Comments

3 Comments

James on 12 Feb 2014

I think your answers in the test suite are for an (m+1)x(n+1) grid, as there are only two ways to reach the bottom right for a 2x2 grid. Check out http://www.mathworks.com/matlabcentral/cody/problems/1483-number-of-paths-on-a-grid for more details.

Zikobrelli on 13 Feb 2014

There are 6 ways of reaching the bottom right corner of a 2*2 grid. Are you considering m*n lines or m*n boxes?

James on 28 Feb 2014

I was considering m*n vertices, not boxes. If you have a 2x2 grid of boxes (3x3 vertices), then you're correct; there are six ways to reach the bottom. Just some miscommunication there.

Problem Recent Solvers37

Problem Tags

pascal's triangle

Problem 2176. Which way to go?

Solution Stats

Last 200 Solutions

Problem Comments

Problem Recent Solvers37

Suggested Problems

More from this Author12

Problem Tags

Problem 2176. Which way to go?

Solution Stats

Last 200 Solutions

Problem Comments

Problem Recent Solvers37

Suggested Problems

More from this Author12

Problem Tags

Players