Do In C++

Write a simple C or C++ program to call fork0 and print a message with its PID (e.g., "This is process PID") where PID is the process ID of the process. You may write one program to do all cases (or a separate program to do each case). Case1. fork0; // followed by a print statement Case2. fork0; fork./ followed by a print statement Case3. fork0; fork0; fork0; I/ followed by a print statement Case4. if (pid-fork) && pid2 - fork)) (fork if (pid-fork ( ) &&pid2= fork()) {fork();} if (pid-fork ( ) &&pid2 = fork ( )) {fork ( );} Case5 // followed by a print statement Case 5 for (int i=1; i