prints words of a string in reverse order for example if a user enter “I love programming ” it should print “gnimmargorp evol i ”. you can use buildin function reverse() #include Hint : use str.begin() and str.end() as an argument in re

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; }

PHP Write a wordFilter function Write a function wordFilter($str) that takes a string representing a sentence as a parameter. It should replace all occurrences of certain blacklisted words with asterisks of the same length and return the substituted sentence. The words “shoot” “darn” and “fudge” (case insensitive) are considered blacklisted. However, these words as part of a larger word should be left alone (e.g. overshoot is fine as it is). Use one or more regular expressions with replacements in your solutions (e.g. preg_replace).

Implement the following C function: repeatChars take in a null-terminated string as an argument and returns a newly- allocated null-terminated string that repeats every character in the input string. For example, repeatChars(''abcd'' )=''aabbccdd'' . You may use the strlen function to determine the length of the string your implementation does not need to check whether malloc returns NULL C Your implementation should not modify the input string