Example of structure, C/C++ Programming

Assignment Help:

Example of structure:

struct item

{

                int element;

                node_ptr next;

};

typedef node_ptr stack;

stack create(void)

{

                stack s;

                s=(stack)malloc(sizeof(struct item));

                s->next=NULL;

                return s;

}

void push(stack s,int a)

{

                node_ptr temp;

                temp=(node_ptr)malloc(sizeof(struct item));

                temp->element=a;

                temp->next=s->next;

                s->next=temp;

}

int is_empty(stack s)

{

                return(s->next==NULL);

}

void  pop(stack s)

{

                node_ptr temp;

                temp=s->next;

                s->next=temp->next;

                free(temp);

 

}

int top(stack s)

{

                return(s->next->element);

}

void main()

{

                stack s;

                char exp[100];

                int i;

                s=create();

                clrscr();

                printf("Enter an expression\n");

                scanf("%s",exp);

                for(i=0;exp[i];i++)

                {

                                if(exp[i]=='('||exp[i]=='['||exp[i]=='{')

                                                push(s,exp[i]);

                                else

                                if(exp[i]==')')

                                                if(top(s)!='(')

                                                {

                                                                printf("Invalid Expression");

                                                                return;

                                                }

                                                else

                                                                pop(s);

                                else

                                if(exp[i]=='}')

                                                if(top(s)!='{')

                                                 {

                                                                printf("Invalid Expression");

                                                                return;

                                                 }

                                                else

                                                                pop(s);

                                else

                                if(exp[i]==']')

                                                if(top(s)!='[')

                                                {

                                                                                printf("Invalid Expression");

                                                                return;

                                                }

                                                else

                                                                pop(s);

                }

                if(!is_empty(s))

                                                {

                                                printf("Invalid Expression");

 

                                }

}

 

 


Related Discussions:- Example of structure

Write a c program to input five numbers, Write a C program to input five nu...

Write a C program to input five numbers and print them out on a new line e.g 5, 10, 15, 20, 25 displayed as   5   10   15   20   25 #include stdio.h   void main()   {

Is it possible to create your own header files, Is it possible to create yo...

Is it possible to create your own header files? - Yes, it's possible to create a customized header file. - To do this, you just need to include function prototypes that you

Create cpp code for identify objects and their relationships, You are setti...

You are setting up an information system for a DVD Rental Company called Box office. The new system need to hold information about customers and DVDs rentals, payments and fines. C

Explain why a linked list is called dynamic data structure, Question: (...

Question: (a) (i) What is recursion? (ii) What advantage is there in its use? (iii) What disadvantage is there in its use? (b) The factorial of a positive number can b

Last ant on rod, There are ''''n'''' ants on a ''''n+1'''' length rod. The ...

There are ''''n'''' ants on a ''''n+1'''' length rod. The ants are numbered from 1 to n and are initially placed at positions starting from position 1 till position n. They are mov

Define namespace in c++, It is a feature in C++ to reduce name collisions i...

It is a feature in C++ to reduce name collisions in the global name space. This namespace keyword assigns a separate name to a library that allows other libraries to use the simila

Example for register storage class - computer programming, Example for Regi...

Example for Register Storage Class - computer programming? main() { register int i; for (i=0; i { ............... ............... } } /* block exit will free the register

Program of 2d byte array dynamicall, In this lab, please complete a given p...

In this lab, please complete a given program to perform the following tasks: 1. Allocate a 10 by 5 2D byte array dynamically. The way of allocation must be consistent with page

Program to create local shopping cart, Available, and the right kind of pro...

Available, and the right kind of programs. My son wants to stop using ice. He has organised detox a number of times, and is always successful. It is the next stage, rehab, where

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd