Given an array of integers and the size of the array, write a function findDuplicate which prints the duplicate element from the array. The array consists of all distinct integers except one which is repeated. Find and print the repeated number. If no duplicate is found, the function should print -1. Your function has two parameters in the order: an array of type int the number of elements in the array the function does not return anything

Example 1:
Given array: {2,3,5,6,11,20,4,8,4,9}
Output: 4

Example 2:
Given array: {1,3,5,6,7,8,2,9}
Output: -1

Show that there is a language a ⚆ {0, 1} â— with the following properties: 1. for all x â a, |x| ≤ 5. 2. no dfa with fewer than 9 states recognizes a. hint: you don’t have to define a explicitly; just show that it has to exist. count the number of languages satisfying (1) and the number of dfas satisfying (2), and argue that there aren’t enough dfas to recognize all those languages. to count the number of languages satisfying (1), think about writing down all the strings of length at most 5, and then to define such a language, you have to make a binary decision for each string about whether to include it in the language or not. how many ways are there to make these choices? to count the number of dfas satisfying (2), consider that a dfa behaves identically even if you rename all the states, so you can assume without loss of generality that any dfa with k states has the state set {q1, q2, . . , qk}. now think about how to count how many ways there are to choose the other four parts of the dfa.

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