Write a user-defined function definition called CountVowel that takes as inp haracter inputs to be read from the keyboard. The function then reads inputs ar f the inputs that are lower-case vowels and returns that count value. (A vowel c

2. Modular arithmetic Write a function that returns the result of any integer modulo of n (i.e., reduce theinteger modulo n). Note that the C++ operator % can be used, but it returns a negativevalue, for example, -1 % 3 yields -1, so we need to do something adjustment (recallthat -1 mod 3 = 2 because -1= (-1)×3+2). Therefore, we will use the mod() functionfrom this step to implement the later encode() and decode() functions. /* precondition: n is greater than 1,a can be negativepostcondition: return a mod n (as defined in class)a mod n = r if and only if a = nk+r, 0 =< r < n (note thatr needs to be non-negative).*/int mod (int a, int n);   -Please write in c++

use c code to Develop a function that gets two same length strings as parameters and reports the number of characters that they have different. For example, if the two strings are   Str1: “Hello world! Happy Friday”Str2: “Hello Johny! happy friday”   The function should return: Your strings are different in 7 places However, if the strings are exactly equal, it should just say Your strings are the same   If the strings are not of the same length, the code should just say: The two strings are not of the same length!   Hint: 1.compare the two strings character by character and report the differences 2.answer must have and show the output