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King's Cage

Given the position of the king on the chessboard, determine the minimum number of steps it'll require to reach the destination. ...

2 years ago

Solved

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 years ago

Solved

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 years ago

Solved

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 years 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 years 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 years 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 years 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 years ago

Solved

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 years ago

Solved

Electric Flux

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

2 years 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 years ago

Solved

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 years 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 years 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 years ago

Solved

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 years ago

Solved

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 years ago

Solved

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 years ago

Solved

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 years ago

Solved

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 years ago

Solved

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 years ago

Solved

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 years ago

Solved

Equilateral Triangle

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

2 years 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 years ago

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Speed

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

2 years 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 years 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 years 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 years 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 years ago