C++ and small task

1- Compile and run the following program and answer the following: a. what do you think is the role of the inner loop in both if and the else blocks? b. Modify code in order to make the child process finish before the parent process starts #include <stdio.h> #include <sys/wait.h> /* contains prototype for wait */ #include <unistd.h> /* contains fork prototype */ #include <stdlib.h> #define ITR 100000 int main() { int i,j,pid; pid = fork(); if( pid == 0 ){ for ( i=0;i<20;i++){ for (j=0;j<ITR ;j++); printf("Child:%d\n",i); } } else{ for ( i=0;i<20;i++){ for (j=0;j<ITR;j++); printf("Parent:%d\n",i); } } } 2- Write a C program to create four processes parent and 3 children where they terminate in a sequence as follows: a. Parent process terminates at last b. First child terminates before parent and after second child. c. Second child terminates after last and before first child. d. Third child terminates first. The output should be similar to the following image where each process should print its ID and its parent ID