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Project Euler Solutions

This category contains 142 posts

Project Euler 1 Solution

Find the sum of all the natural numbers that are multiples of 3 or 5 using the inclusion-exclusion principal.

Project Euler 10 Solution

Calculate the sum of all the primes below two million.

Project Euler 100 Solution

Finding the number of blue discs for which there is 50% chance of taking two blue.

Project Euler 101 Solution

Investigate the optimum polynomial function to model the first k terms of a given sequence.

Project Euler 102 Solution

Determine if the origin is contained inside a triangle.

Project Euler 104 Solution

Find Fibonacci numbers for which the first and last nine digits are pandigital.

Project Euler 11 Solution

Find the greatest product of four adjacent numbers in the same direction in a grid.

Project Euler 112 Solution

Investigating the density of “bouncy” numbers.

Project Euler 113 Solution

Count how many numbers below a googol (10**100) are not “bouncy”

Project Euler 114 Solution

Count the ways a row measuring fifty units in length could be filled with blocks three units long. The blocks must be separated by at least one empty space.