Write a C function countWords() that takes a string as parameter, finds and returns the number of word in the string. Word is a group of consecutive alphanumeric characters. "CS363"  "C3PO".

Define a function named get_encrypted_list (word) which takes a word as a parameter. The function returns a list of characters. The first element is the first letter from the parameter word and the rest is as a sequence of '*', each '*' representing a letter in the parameter word. Note: you can assume that the parameter word is not empty. For example: Test Result ['h', '*', **1 guess = get_encrypted_list('hello') print(guess) print (type (guess)) guess = get_encrypted_list('succeed') ['s', '*', print (guess) **¹, ¹*¹] **']

C++ is my answer correct ? Write a function to convert a given string : Answer: #include <iostream> #include <string> using namespace std;   void toUpper(string &str) {         for (int i = 0; i < str.length(); i++)     {         str[i] = toupper(str[i]);     } }   void toLower(string &str) {        for (int i = 0; i < str.length(); i++)     {         str[i] = tolower(str[i]);     } }   int main() {     string str = "khaled";     toUpper(str);     cout << str << endl;       str = "MOHAMMED";     toLower(str);     cout << str << endl;       return 0; }   Write a function to calculate the sum of the even number from 1 - 100. Answer: #include <iostream> using namespace std;   int sumEven() {        int sum = 0;           for (int i = 1; i <= 100; i++) {                 if (i % 2 == 0) {                         sum += i;         }     }     return sum; } int main() {     cout << sumEven() << endl;     return 0; }

Complete the rotate_text() function that takes 2 parameters, a string data and an integer n. If n is positive, then the function will shift all the characters in data forward by n positions, with characters at the end of the string being moved to the start of the string. If n is 0 then the text remains the same. For example: rotate_text('abcde', rotate_text('abcde', rotate_text('abcde', 1) would return the string 'eabcd' 3) would return the string 'cdeab' 5) would return the string 'abcde' rotate_text('abcde', 6) would return the string 'eabcd' ... and so on. If n is negative, then the function will shift the characters in data backward by n positions, with characters at the start of the string being moved to the end of the string. For example: rotate text('abcde', -1) would return the string 'bcdea'