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

Choose the best explanation for the following statement communication is symbolic

Write a function balancechemical to balance chemical reactions by solving a linear set of equations. the inputs arguments are: reagents: symbols of reagents in string row array products: symbols of products in string row array elements: elements in the reaction in string row array elcmpreag: elemental composition of reactants in two dimensional numeric array elcmpprdcts: elemental composition of prducts in two dimensional numeric array hint: the first part of the problem is setting up the set of linear equations that should be solve. the second part of the problem is to find the integers from the solution. one way to do this is to mulitiply the rational basis for the nullspace by increasing larger integers until both the left-and right-side integers exist. for example, for the reaction that involves reacting with to produce and : reagents=["ch4", "o2"]; products =["co2", "h2o"]; elements =["c","h", "o"] elcmpreag=[1,4,0;

Q13 what function does a security certificate perform? a. creates user accounts b. scrambles data c. identifies users d. creates password policies e. provides file access