Answer :
Answer:
#include<stdio.h>
// Method to insert a value into a stack
void push(char value, char myStack[], int *top, int sizeOfStack){
if(*top == -1){
myStack[sizeOfStack - 1] = value;
*top = sizeOfStack - 1;
}
else if(*top == 0){
printf("Stack is full. \n");
}
else{
myStack[(*top) - 1] = value;
(*top)--;
}
}
//Method to remove a value from a stack
void pop(char myStack[], int *top, int sizeOfStack){
if(*top == -1){
printf("Stack is empty. \n");
}
else{
printf("Value removed: %c \n", myStack[(*top)]);
// Now if the value removed was the last value in the stack
// you should set top to -1.
// This would show that the stack is now empty
if((*top) == sizeOfStack - 1){
(*top) = -1;
}
else{
(*top)++;
}
}
}
//Method to test the pop and push methods
int main() {
//variable to hold the size of stack
int sizeOfStack = 6;
//create the stack
char myStack[sizeOfStack];
//set the top to -1
//this is to show that the stack is initially empty
int top = -1;
//insert a value tot the stack
push('x', myStack, &top, sizeOfStack);
//print the value on the top
printf("Value on top of stack: %c\n", myStack[top]);
//insert another value to the stack
push('y',myStack, &top, sizeOfStack);
//print the value on the top of the stack
printf("Value on top of stack: %c\n", myStack[top]);
//insert another value to the stack
push('z',myStack, &top, sizeOfStack);
//print the value on the top of the stack
printf("Value on top of stack: %c\n", myStack[top]);
//remove the last inserted value
pop(myStack, &top, sizeOfStack);
//print the value on the top of the stack
printf("Value on top of stack: %c\n", myStack[top]);
//remove another value
pop(myStack, &top, sizeOfStack);
//print the value on the top of the stack
printf("Value on top of stack: %c\n", myStack[top]);
return 0;
}
Sample Output:
Value on top of stack: x
Value on top of stack: y
Value on top of stack: z
Value removed: z
Value on top of stack: y
Value removed: y
Value on top of stack: x
Explanation:
The code above has been written in c and it contains comments explaining important parts of the code. Please go through the comments.
It also contains a sample output resulting from the run of the program.