lambdas example

just an anonymous function

Author: MuminjonGuru

HackerRank/lambdas_example.rb

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+# Write a lambda which takes an integer and square it
+square = ->(a){a**2}
+
+# Write a lambda which takes an integer and increment it by 1
+plus_one = ->(b){b+1} 
+
+# Write a lambda which takes an integer and multiply it by 2
+into_2 = ->(c){c*2}
+
+# Write a lambda which takes two integers and adds them
+adder = ->(d,e){d+e}
+
+# Write a lambda which takes a hash and returns an array of hash values
+values_only = ->(f){f.values}
+
+
+input_number_1 = gets.to_i
+input_number_2 = gets.to_i
+input_hash = eval(gets)
+
+a = square.(input_number_1); b = plus_one.(input_number_2);c = into_2.(input_number_1); 
+d = adder.(input_number_1, input_number_2);e = values_only.(input_hash)
+
+p a; p b; p c; p d; p e