Problem 44342. Spot the First Occurrence of 5

This problem series invites you to solve two simple problems related to the integer NUMBER FIVE, in order to celebrate Cody's 5th birthday.

In this problem, let's determine the position (index) of the first occurrence of 5 along the first non-singleton dimension of an input array.

E.g.,

  • If the input is a vector, return the index of the first occurrence of 5.
x = [1 2 5 3 5];
y = 3;
  • If the input is a matrix, return the index of the first occurrence of 5 in each column. If 5 is not found, simply return 0;
% Input x is a matrix
x = [1 2 5
     5 9 1
     5 6 5];
% Output y
y = [2 0 1];

Next problem in this series: The Top 5 Primes

Solution Stats

31.22% Correct | 68.78% Incorrect
Last Solution submitted on Jan 24, 2024

Problem Comments

Solution Comments

Show comments

Problem Recent Solvers414

Suggested Problems

More from this Author29

Problem Tags

Community Treasure Hunt

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

Start Hunting!