Feeds
已解决
Fibonacci sequence
Calculate the nth Fibonacci number. Given n, return f where f = fib(n) and f(1) = 1, f(2) = 1, f(3) = 2, ... Examples: Input...
1 year 前
已解决
Is this triangle right-angled?
Given any three positive numbers a, b, c, return true if the triangle with sides a, b and c is right-angled. Otherwise, return f...
3 years 前
已解决
Sum of series V
What is the sum of the following sequence: Σk(k+1) for k=1...n for different n?
3 years 前
已解决
Sum of series III
What is the sum of the following sequence: Σ(2k-1)^3 for k=1...n for different n?
3 years 前
已解决
Sum of series II
What is the sum of the following sequence: Σ(2k-1)^2 for k=1...n for different n?
3 years 前
已解决
Sum of series I
What is the sum of the following sequence: Σ(2k-1) for k=1...n for different n?
3 years 前
已解决
Doubling elements in a vector
Given the vector A, return B in which all numbers in A are doubling. So for: A = [ 1 5 8 ] then B = [ 1 1 5 ...
3 years 前
已解决
Flip the vector from right to left
Flip the vector from right to left. Examples x=[1:5], then y=[5 4 3 2 1] x=[1 4 6], then y=[6 4 1]; Request not ...
3 years 前
已解决
Get the length of a given vector
Given a vector x, the output y should equal the length of x.
3 years 前
已解决
Select every other element of a vector
Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...
3 years 前
已解决
Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...
3 years 前
