Problem 74. Balanced number

Created by Cody Team

Solve Later

Given a positive integer find whether it is a balanced number. For a balanced number the sum of first half of digits is equal to the second half.

Examples:

 Input  n = 13722 
 Output tf is true

because 1 + 3 = 2 + 2.

 Input  n = 23567414 
 Output tf = true

All palindrome numbers are balanced.

This is partly from Project Euler, Problem 217.

Solve

Solution Stats

6632 Solutions
3052 Solvers

Last Solution submitted on Oct 12, 2025

Last 200 Solutions

Problem Comments

1 Comment

1 Comment

GEORGIOS BEKAS on 25 Jan 2018

there is a problem with the test.
it does not accept the following code:
s1=[]
s2=[]
l=length(s)
if mod(l,2)~= 0
for i = 1:ceil(length(s)/2)-1
s1 = [s1,str2double(s(i))]
end
for i = ceil(length(s)/2)+1:l
s2=[s2,str2double(s(i))]
end
else
for i = 1:ceil(length(s)/2)
s1 = [s1,str2double(s(i))]
end
for i = ceil(length(s)/2)+1:l
s2=[s2,str2double(s(i))]
end
end

if sum(s1)==sum(s2)
tf = 1
else
tf = 0
end

Solution Comments

Show comments

Problem Recent Solvers3052

Problem Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Problem 74. Balanced number

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers3052

Suggested Problems

More from this Author96

Problem Tags

Community Treasure Hunt

Problem 74. Balanced number

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers3052

Suggested Problems

More from this Author96

Problem Tags

Community Treasure Hunt

Players