complete the sock merchant function in the editor below. it must return an integer representing the number of matching pairs of socks that are available.
"what is england to me? the importance of a state is measured by the number of soldiers it can put into the field of battle … it is the destiny of the weak to be devoured by the strong."
By Yvonne Becker at Nov 24 2020
1
you are given an array of integers. your task is to print the sum of numbers that occurs for an even number of times in the array.
Given a string and a non-empty substring sub, compute recursively the number of times that sub appears in the string, without the sub strings overlapping.