Problem 139. Determine if a Given Number is a Triangle Number

    Input  = [ 1 2 3 ];
    Output = [ 1 0 1 ];

Solution Comments

Problem Recent Solvers398

Suggested Problems

• Create times-tables

  19228 Solvers

• Word Counting and Indexing

  2039 Solvers

• Replace NaNs with the number that appears to its left in the row.

  3064 Solvers

• It dseon't mettar waht oedrr the lrettes in a wrod are.

  2086 Solvers

• intersection of matrices

  644 Solvers

More from this Author56

• Roll the Dice!

  10712 Solvers

• Triangle Numbers Below N

  236 Solvers

• Test if a Number is a Palindrome without using any String Operations

  253 Solvers

• Read a Soroban Abacus

  230 Solvers

• Lychrel Number Test (Inspired by Project Euler Problem 55)

  111 Solvers