Stack Implementation using arrays with Menu for various operations.

This Program gives stack implementation using arrays, max stack size input is considered as 100 during implementation, modify it suitably. #include<stdio.h> #include<conio.h> //Max stack size can be 99 //function declaration void push(int* top,int* stackarray,int size, int ele); void pop(int *top,int* stackarray); void display_stack(int stackarray[],int top); //main function void main() { int stackarr[100]; int top =-1; int size =0; int ele =0; int ch =0; printf("enter the stack size less than 100\n"); scanf("%d",&amp;size); //this menu will be displayed till user chooses to exit while(1) { printf("***************stackOperationsMenu*****************\n"); printf("1--------->push an element int stack\n"); printf("2--------->pop an element into stack\n"); printf("3--------->display stack contents\n"); printf("otherNum------>exit the program\n"); printf("Enter your choice\n"); scanf("%d", &ch); switch(ch) { case 1:printf("Enter the element to be pushed to stack\n"); scanf("%d", &ele); push( &top,stackarr,size,ele); break; case 2:pop( &top,stackarr); break; case 3: display_stack(stackarr,top); break; default:return; }//end of switch }//end of while }// end of main //function definitions void push(int* top,int* stackarray,int size, int ele) { if(*top == size-1) { printf("stack is full\nPlease pop some elements and try to insert again\n"); } else { *top=*top+1; stackarray[*top]=ele; } } void pop(int* top,int* stackarray) { if(*top == -1) printf(" stack is empty no element to pop\n"); else { printf("Popped element is %d",stackarray[*top--]); } } void display_stack(int stackarray[],int top) { int i=0; printf("Stack contents:\n"); for(int i=0;i&amp;lt;=top;i++) { printf("%d\n",stackarray[i]); }  }