# Mario Rossi

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**Content Feed**

Solved

Strangest ways to get 0

Propose your non-trivial way to get 0. Look mine's, and try to do your best!

circa 5 anni ago

Solved

A shooting competition

In a shooting competition, the target is a square of side L containing a circle of radius R<=L/2. A player scores one point if h...

circa 5 anni ago

Solved

Probabilities - Balls and urns - 02

The urn contains B blue balls and R red balls. Each trial consists of drawing one random ball from the urn and observing its col...

circa 5 anni ago

Solved

Performance - summation

Given a vector of natural numbers x = [1,2,3,...,N] compute the sum of its elements by not stressing the machine too much...

circa 5 anni ago

Solved

Probabilities - Balls and urns - 01

The urn contains B blue balls and R red balls. Each trial consists of drawing one random ball from the urn and observing its col...

circa 5 anni ago

Solved

Non trivial identities - identity handle

Return x by handling the identity function.

circa 5 anni ago

Solved

Non trivial identities - absolute value

Return x by computing its absolute value.

circa 5 anni ago

Solved

Non trivial identities - replication

Return x by replicating itself in any dimension.

circa 5 anni ago

Solved

Non trivial identities - multiplication

Return x by multiplying it with a random number.

circa 5 anni ago

Solved

Non trivial identities - summation

Return x by adding a random number to it.

circa 5 anni ago

Solved

Geometrical meaning of determinant

Given two vectors x,y, in 2D or three vectors x,y,z in 3D space, compute the area (or volume) of the parallelogram they define. ...

circa 5 anni ago

Solved

Find the diagonal of the square of side L

You are given a square of side length L, find D the length of its diagonal.

circa 5 anni ago

Solved

Area of polygon

Given the vertices in vectors X,Y, return the area of the polygon they define.

circa 5 anni ago

Solved

Remove collinear points in a set of 2D points defining a polygon

Consider a polygon that is obtained by joining a set of 2D points whose coordinates are stored in matrix P=[x,y]. Write a functi...

circa 5 anni ago