# Sophia Nguyen

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**Content Feed**

Solved

Sudoku Solver - Standard 9x9

Solve a Standard 9x9 <http://en.wikipedia.org/wiki/Sudoku Sudoku>. Values 1 thru 9 occur in each row, column, and the nine non-o...

mer än ett år ago

Solved

Make a checkerboard matrix

Given an integer n, make an n-by-n matrix made up of alternating ones and zeros as shown below. The a(1,1) should be 1. Examp...

mer än ett år ago

Solved

Find the nearest prime number

Happy 5th birthday, Cody! Since 5 is a prime number, let's have some fun looking for other prime numbers. Given a positive in...

nästan 2 år ago

Solved

Extra safe primes

Did you know that the number 5 is the first safe prime? A safe prime is a prime number that can be expressed as 2p+1, where p is...

nästan 2 år ago

Solved

Knights and Knaves (part 2)

_This is a Matlab adaptation of the_ <http://en.wikipedia.org/wiki/Knights_and_Knaves Knights and Knaves> _logical puzzles_. ...

nästan 2 år ago

Solved

Knights and Knaves (part 1)

This is a Matlab adaptation of the <http://en.wikipedia.org/wiki/Knights_and_Knaves Knights and Knaves> logical puzzles. You ...

nästan 2 år ago

Solved

Sudoku square

We have a small Sudoku square, but one number is missing. x = [ 1 5 4 8 6 3 0 9 7 ] Make a function, wher...

nästan 2 år ago

Solved

Check to see if a Sudoku Puzzle is Solved

*Description:* Your task, should you choose to accept it, is to make a function that checks to see if a 9x9 matrix of integer...

nästan 2 år ago

Solved

Solve the Sudoku Row

*Description* A simple yet tedious task occurs near the end of most Sudoku-solving algorithms, computerized or manual. The ta...

nästan 2 år ago

Solved

Find a Pythagorean triple

Given four different positive numbers, a, b, c and d, provided in increasing order: a < b < c < d, find if any three of them com...

nästan 2 år ago

Solved

Is this triangle right-angled?

Given three positive numbers a, b, c, where c is the largest number, return *true* if the triangle with sides a, b and c is righ...

nästan 2 år ago

Solved

Area of an Isoceles Triangle

An isosceles triangle has equal sides of length x and a base of length y. Find the area, A, of the triangle. <<http://upload...

nästan 2 år ago

Solved

Dimensions of a rectangle

The longer side of a rectangle is three times the length of the shorter side. If the length of the diagonal is x, find the width...

nästan 2 år ago

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Side of a rhombus

If a rhombus has diagonals of length x and x+1, then what is the length of its side, y? <<http://upload.wikimedia.org/wikipe...

nästan 2 år ago

Solved

Area of an equilateral triangle

Calculate the area of an equilateral triangle of side x. <<http://upload.wikimedia.org/wikipedia/commons/e/e0/Equilateral-tr...

nästan 2 år ago

Solved

Length of the hypotenuse

Given short sides of lengths a and b, calculate the length c of the hypotenuse of the right-angled triangle. <<http://upload....

nästan 2 år ago

Solved

Length of a short side

Calculate the length of the short side, a, of a right-angled triangle with hypotenuse of length c, and other short side of lengt...

nästan 2 år ago

Solved

RISK Calculator - Large Armies, High Accuracy, Fast

This Challenge is to quickly provide the high precision probability of legal RISK battles up to 100 vs 100. [ Attack >= 2 and D...

nästan 2 år ago

Solved

RISK board game battle simulation

Given two positive integer inputs, a (attacker army units) and d (defender army units) return the probablity of victory (from 0....

nästan 2 år ago

Solved

Pentago: find winning move

<http://en.wikipedia.org/wiki/Pentago Pentago> is a challenging two-player strategy game. The objective is to be the first playe...

nästan 2 år ago

Solved

Pi Digit Probability

Assume that the next digit of pi constant is determined by the historical digit distribution. What is the probability of next di...

nästan 2 år ago

Solved

Go-style solver

Consider a variation of the game Go where one player has gone ahead and placed several pieces all at once. Assuming that the sec...

nästan 2 år ago

Solved

Chess ELO rating system

The Elo rating system is a method for calculating the relative chess skill levels of players in competitor-versus-competitor gam...

nästan 2 år ago

Solved

Chess performance

After Problems <http://www.mathworks.com/matlabcentral/cody/problems/3054-chess-elo-rating-system/ 3054> and <http://www.mathwor...

nästan 2 år ago

Solved

Chess probability

The difference in the ratings between two players serves as a predictor of the outcome of a match (the <http://en.wikipedia.org/...

nästan 2 år ago

Solved

Identify Reachable Points

Given a vector of 2-D Points and a vector of 2-D Deltas create an array of all Locations that can be reached from the points usi...

nästan 2 år ago

Solved

Wheat on a chessboard pt 2

If a chessboard were to have wheat placed upon each square such that x grains were placed on the first square and each successiv...

nästan 2 år ago

Solved

Wheat on a chessboard pt 1

If a chessboard were to have wheat placed upon each square such that one grain were placed on the first square and each successi...

nästan 2 år ago

Solved

N-Queens Checker

Picture a chessboard populated with a number of queens (i.e. pieces that can move like a queen in chess). The board is a matrix,...

nästan 2 år ago

Solved

Eight Queens Solution Checker

Write a function to verify whether an arrangement of queens on a chessboard is a valid solution to the classic <http://en.wikipe...

nästan 2 år ago