C Answers

Write a C program which reads and access the elements of the csv file by using the system call functions such as read, write and open. You should sum all the no. present inside a particular column in that csv file . by using the system call functions.

1.Write a program with three functions A(), B() and C(). B() is written in asssembly lang.

2. A() should call B() passing a 64-bit integer as an argument.

3. B() should be written in asm and interpret that as a 8-byte ASCII string and print individual characters on screen. You need to call the write() system call from assembly language using the syscall instruction, passing appropriate arguments.

4. Modify the stack in the function B() in such a way that when B() executes the ret instruction, it jumps to a third function C(). C() must also be written in C. This MUST happen without an explicit call to function C(). A mere ret from B, should pass the control to function C() instead of A(). Finally, the function C() needs to terminate the program by using the exit() system call.

Explain queue with the help of an example.

Write an algorithm/program to push an element in array implemented stack

Explain stacks with the help of an example

In-Lab Task 2: Testing if a mathematical expression is balanced or not. Write a function that checks whether parentheses in a mathematical expression are balanced or not. The input to the function will be a pointer to a null-terminated array of characters (string). Assume that all the operands in the expression are single-digit numbers. You should call this function from ‘main’ function to demonstrate that it works as intended. The function should return 0 if the expression is balanced, and the index of mismatch otherwise. The function prototype is given below: int isBalanced(char * ptr_array);