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

Explain the shift operators, The Shift Operators There are 2 shift oper...

The Shift Operators There are 2 shift operators : left shift ( >). These are binary operators. The format is                 operand >> number or operand   The first

STM32F103RET6, traffic light t junction I have 21 LEDs will 6 in each side...

traffic light t junction I have 21 LEDs will 6 in each side 3 for the cars the other 3 will be for the people across the street this will be for each side and the last 3 for show

Explain friend for overloading operators, Friend for Overloading Operators ...

Friend for Overloading Operators Sometimes friend functions cannot be avoided. For example with the operator overloading. Consider the following class that have data members to

Describe what is actual arguments, Describe what is actual arguments? -...

Describe what is actual arguments? - When certain functions are created and used to perform an action on some provided values, some values are required to be passed to them. Th

C++, #include long BixFunction(int x, int y = 5, float z = 5) { return...

#include long BixFunction(int x, int y = 5, float z = 5) { return(++x * ++y + (int)++z); } int main() { cout return 0; }

Pointer, void main() { int *p, *q, i ; p=(int*)100; q=(int*)200; i=q-p; pr...

void main() { int *p, *q, i ; p=(int*)100; q=(int*)200; i=q-p; printf("%d",i); } }

Illustrate bit fields with structures, C language lets us do this in a stru...

C language lets us do this in a structure definition by putting: bit length after the variable that is. struct packed_struct { unsigned int f1:1; unsigned int f2:1; unsigned

Is there any difficulty with the following : char*a=null; , Is there any di...

Is there any difficulty with the following : char*a=NULL; char& p = *a;? A: The result is indeterminate. You must never do this. A reference has to always refer to some object.

Program that calculates bowling scores, Homework – Chapter 5 – Bowling Scor...

Homework – Chapter 5 – Bowling Scores 33. Write a complete C++ program to do the following: The main program reads in and prints three bowling scores, score1, score2, and score

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