Hackerrank Currying Solution

Hackerrank Currying Solution

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Currying is a technique in which a function accepts  parameters and turns it into a sequence of  functions, each of them take 1 parameter.

Example :-

multiply_numbers = -> (x,y) do
    x*y
end

doubler = multiply_numbers.curry.(2)
tripler = multiply_numbers.curry.(3)

puts doubler.(4)    #8
puts tripler.(4)    #12

In the above example, lambda take two parameters ,  and return the product of the two.
multiply_numbers.curry.(2) returns a lambda which takes only one parameter necessary for calculation.


Task

You are given a partially complete code. Your task is to fill in the blanks (_______).
Write a curry, which pre-fills  with variable .

Solution in ruby

Approach 1.

power_function = -> (x, z) {
    (x) ** z
}

base = gets.to_i
raise_to_power = power_function.curry.(base)

power = gets.to_i
puts raise_to_power.(power)

Approach 2.

power_function = -> (x, z) {
    (x) ** z
}

base = gets.to_i
raise_to_power = power_function.curry.(base)

power = gets.to_i
puts raise_to_power.(power)

Approach 3.

power_function = -> (x, z) {
    (x) ** z
}

base = gets.to_i
raise_to_power = power_function.curry.(base)

power = gets.to_i
puts raise_to_power.(power)