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

• Check if sorted

  4495 Solvers

• Back to basics 5 - Clipboard

  358 Solvers

• Indirect Sorting

  316 Solvers

• Duplicate each element of a vector.

  636 Solvers

• Area of an equilateral triangle

  6819 Solvers

More from this Author56

• Generate N equally spaced intervals between -L and L

  947 Solvers

• First N Perfect Squares

  922 Solvers

• Give the Shortest Path Through The Maze

  57 Solvers

• Check to see if a Sudoku Puzzle is Solved

  338 Solvers

• Triangle Numbers Below N

  238 Solvers