Write a function named addCommas that accepts a string representing a number and returns a ew string with a comma at every third position, starting from the right. For example: addCommas("12345678") -> "12,345,678" strings.cpp 1 // Implement your function here strings.h 1 // Declare your function here client.cpp 1 #include using namespace std; 4 #include "strings.h" int main() cout <« "What number to process: "; string n; cin >> n; 10 // note string input 11 12 13 cout « addCommas (n) <« endl; 14

Please help, I need the code in C language I'm struggling.

In C++, there is a specialized kind of variable known as a pointer variable that you may utilize. Do you have a knowledge of how to put it to use in various situations?

List out all the valid variable names in C++ from all the variable names given below: _, $, 6t, t, v1 2, t#, mynum!, hello, break, v1_v2, num%, P2 Valid identifiers:

A pointer variable is a special kind of variable that may be used in C++. Do you have an understanding of how to make use of it?