# Ramon Villamangca

Learner and Math Enthusiast

**Programming Languages:**

C++, Java, Javascript, MATLAB, Ruby, Perl, Swift, Assembly

**Spoken Languages:**

English

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**Content Feed**

Solved

Odd row

Create a row 'y' with odd numbers where the potential maximum number is given by 'x' and the space between them by 'm'. The firs...

12 hours ago

Problem

Easy Sequences 83: Digits of Powers of 3

This problem is a simpler version of 'Easy Sequences 82: Digits of Powers of 2'. Given integers and , we are asked to return th...

2 days ago | 0 | 0 solvers

Solved

Longest Collatz Sequence

Inspired by Projet Euler n°14. The Collatz iterative sequence (See Cody problem n° 2103 and 211) is defined for the set of po...

4 days ago

Solved

Fill an array given a sum and array length values

Fill an array with random numbers so that their sum and array length will be equal to the given values as input. Function will ...

4 days ago

Solved

Convert float to base N

The matlab function dec2base converts a positive integer number to a specified base. Extend it so that it works with non intege...

4 days ago

Solved

Canadian Conundrum

After succesfully completing the French Conundrum, you have decided to take a vacation. Your trip is amongst the mighty mountai...

5 days ago

Solved

French Conundrum

The French army is trapped, sorrounded in backwards direction (South and West directions) by enemy traps and ambushes. You are n...

5 days ago

Solved

Acid-Base Chemistry: Which side of the reaction is more favorable?

In an Acid-Base reaction, there is always going to be an acid, a base, a conjugate acid, and a conjugate base. When provided wit...

5 days ago

Problem

Digits of Powers of 2

In Project Euler Problem #16, we are asked for sum of the digits of powers of 2. Here we will be asked for more than that. Give...

6 days ago | 0 | 3 solvers

Solved

That's some divisor you've got there...

Given a positive integer x, calculate the sum of all of the divisors of the number. Please include the number itself in your fi...

6 days ago

Solved

volume of a cone

create a program that allows us to calculate the volume of a cone using radius "r" and height "h"

6 days ago

Solved

Compute the unitary totient of a number

The totient function , the subject of Cody Problems 656 and 50182, gives the number of integers smaller than that are relativel...

6 days ago

Solved

Sum the unitary divisors of a number

Cody Problems 1933 and 46898 deal with , the sum of divisors function. This problem deals with , the sum of unitary divisors fun...

6 days ago

Solved

Count the unitary divisors of a number

Cody Problem 56738 asks for a list of the unitary divisors of a number. For this problem, write a function to count the unitary ...

6 days ago

Solved

List unitary divisors of a number

A unitary divisor of a number divides and satisfies gcd(,) = 1. For example, 9 is a unitary divisor of 18 because gcd(9,2) = ...

6 days ago

Solved

surrounded matrix

With a given matrix A (size m x n) create a matrix B (size m+2 x n+2) so that the matrix A is surrounded by ones: A = [1 2 ...

8 days ago

Solved

Determine if a given input is even or odd?

Given an input, determine if even or odd.

8 days ago

Solved

Set some matrix elements to zero

First get the maximum of each *row*, and afterwards set all the other elements to zero. For example, this matrix: 1 2 3 ...

8 days ago

Solved

Permute diagonal and antidiagonal

Permute diagonal and antidiagonal For example [1 2 3;4 5 6;7 8 9] -> [3 2 1;4 5 6;9 8 7] WITHOUT diag function (and variable n...

8 days ago

Solved

Flip the main diagonal of a matrix

Given a n x n matrix, M, flip its main diagonal. Example: >> M=magic(5); >> flipDiagonal(M) 9 24 1 ...

9 days ago

Solved

Find the peak 3n+1 sequence value

A Collatz sequence is the sequence where, for a given number n, the next number in the sequence is either n/2 if the number is e...

9 days ago

Solved

Rotate input square matrix 90 degrees CCW without rot90

Rotate input matrix (which will be square) 90 degrees counter-clockwise without using rot90,flipud,fliplr, or flipdim (or eval)....

9 days ago

Solved

Make an awesome ramp for a tiny motorcycle stuntman

Okay, given a vector, say v=[1 3 6 9 11], turn it into a matrix 'ramp' like so: m=[1 3 6 9 11; 3 6 9 11 0; 6 9 ...

10 days ago