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Path of least resistance

Find the length of the shortest path through the matrix from the top left to bottom right corner. You may move right, down, or d...

2 months ago

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Prime Sum

What is the minimum value that can be written as sum of primes in n different ways? For example, 10 is the minimum value th...

2 months ago

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Minimal Path - 04

Given a matrix, find the minimal path sum from any cell in the left column and finishing in any cell in the right column. You...

2 months ago

Solved

Find the area of the square

There are *n²* circles inscribed in the square ABCD. The perimeter of each circle is *aπ* <<http://imgfz.com/i/3wzCeAT.png>> ...

2 months ago

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Get the area of the square.

Four circles are inscribed in the square ABCD. The perimeter of each circle is *aπ*. <<http://imgfz.com/i/UzgCJut.png>> Gi...

2 months ago

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Distance Between Points

Being n the number of points (If n = 3 there would be 3 points: A, B and C). The distance between each pair of points increases...

2 months ago

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4xa

Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y.

2 months ago

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3xa

Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y.

2 months ago

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Electric Flux

Calculate the flux passing through a surface. E is electric field, A is area.

2 months ago

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Minimal Path - 03

Given a matrix, find the minimal path sum from the top left to the bottom right corner. Now you can move up, right & down. ...

2 months ago

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Orthogonal lines

Check whether two given lines are orthogonal or not. Two lines are orthogonal if they create a right angle at their intersect...

2 months ago

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Minimal Path - 02

Given a matrix, find the minimal path from the top left to the bottom right by only moving to the right and down so that the sum...

2 months ago

Solved

Is the paranthesis sequence balanced ?

Quantum mechanics and computer science are interested in <http://en.wikipedia.org/wiki/Bra%E2%80%93ket_notation bra-kets>. Today...

2 months ago

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Quarantine Days

In these quarantine days, a list of what Max may do on a typical day is given in a table with the starting hour to ending hour. ...

2 months ago

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Word Ladder

Given a set of words, and two other words - start and destination, Find the smallest chain from start to the destination such...

2 months ago

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Design a minimum-cost cable network for a power grid

You are given the 2-D point locations ( _xi_ , _yi_ ) of *N* _components_ of a power grid. These _components_ include power sour...

2 months ago

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Count the number of reaction chains achievable in T mins

This problem is related to Problem <45467>. Let's denote a list of *N* compounds as 1, 2, ..., *N*. You are then given a list...

2 months ago

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Propagate the effects of a blockage in a chemical plant

From the perspective of flow, a chemical plant can be described by a collection of _nodes_ and _edges_. _Nodes_ are points where...

2 months ago

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Pitting corrosion on a metal plate: Find the largest pit

You are given an N x M matrix of _ones_ and _zeros_, which represents an image of a rectangular metal plate taken from the hull ...

2 months ago

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Pitting corrosion on a metal plate: Count the number of pits

You are given an N x M matrix of _ones_ and _zeros_, which represents an image of a rectangular metal plate taken from the hull ...

2 months ago

Solved

Equilateral Triangle

The length of one side of the equilateral triangle is a. Calculate the area of the equilateral triangle.

2 months ago

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Momentum of an Object

P is momentum, m is mass, and v is velocity. Calculate the momentum for an object.

2 months ago

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Speed

x is distance, v is speed, and t is time. Calculate the speed for an object.

2 months ago

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Newton's Motion Law

F is force, m is mass, and a is acceleration. Calculate the force for an object.

2 months ago

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List the households affected by leaks in water distribution

Consider the following water distribution network, where water is pumped uni-directionally from left to right: 8...

2 months ago

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AK Sorting according to given order

Generally we sort the sequence in ascending or descending order considering 0,1,2,...9 and so on , is the correct ascending orde...

2 months ago

Solved

Prime Ladders

A <http://en.wikipedia.org/wiki/Word_ladder word ladder> transforms one word to another by means of single-letter mutations. So ...

2 months ago