Stack.c

#include <stdio.h>
#include <stdlib.h>
#define STACK_SIZE 10
char stack[STACK_SIZE];
int top = -1;

int isFull() {
    return top >= STACK_SIZE - 1;
}

int isEmpty() {
    return top <= -1;
}

void push(char data) {
    if(isFull()) exit(0);
    stack[++top] = data;
}

char pop() {
    if(isEmpty()) exit(0);
    return stack[top--];
}

char peek() {
    if(isEmpty()) exit(0);
    return stack[top];
}

int getSize() {
    return top + 1;
}

void print() {
    printf("{ ");
    for (int i=0; i<=top; ++i) {
        printf("%c", stack[i]);
        if(i < top) printf(", ");
    }
    printf(" }\n");
}

int main() {
    return 0;
}