Euler problems/81 to 90

Problem 81

Find the minimal path sum from the top left to the bottom right by moving right and down.

Solution:

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Problem 82

Find the minimal path sum from the left column to the right column.

Solution:

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Problem 83

Find the minimal path sum from the top left to the bottom right by moving left, right, up, and down.

Solution:

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Problem 84

In the game, Monopoly, find the three most popular squares when using two 4-sided dice.

Solution:

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Problem 85

Investigating the number of rectangles in a rectangular grid.

Solution:

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Problem 86

Exploring the shortest path from one corner of a cuboid to another.

Solution:

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Problem 87

Investigating numbers that can be expressed as the sum of a prime square, cube, and fourth power?

Solution:

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Problem 88

Exploring minimal product-sum numbers for sets of different sizes.

Solution:

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Problem 89

Develop a method to express Roman numerals in minimal form.

Solution:

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Problem 90

An unexpected way of using two cubes to make a square.

Solution:

problem_90 = undefined