Euler problems/81 to 90
Find the minimal path sum from the top left to the bottom right by moving right and down.
problem_81 = undefined
Find the minimal path sum from the left column to the right column.
problem_82 = undefined
Find the minimal path sum from the top left to the bottom right by moving left, right, up, and down.
problem_83 = undefined
In the game, Monopoly, find the three most popular squares when using two 4-sided dice.
problem_84 = undefined
Investigating the number of rectangles in a rectangular grid.
problem_85 = undefined
Exploring the shortest path from one corner of a cuboid to another.
problem_86 = undefined
Investigating numbers that can be expressed as the sum of a prime square, cube, and fourth power?
problem_87 = undefined
Exploring minimal product-sum numbers for sets of different sizes.
problem_88 = undefined
Develop a method to express Roman numerals in minimal form.
problem_89 = undefined
An unexpected way of using two cubes to make a square.
problem_90 = undefined