Write a function that evaluates an expression in RPN that is given as

Question

Write a function that evaluates an expression in RPN that is given as a string.

26 Feb 2024

Answer :

Word Count : 707

#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>

#define MAX_STACK_SIZE 100

// Stack structure
typedef struct {
int top;
double items[MAX_STACK_SIZE];
} Stack;

// Function to initialize the stack
void initialize(Stack *s) {
s->top = -1;
}

// Function to push an item onto the stack
void push(Stack *s, double value) {
if (s->top == MAX_STACK_SIZE - 1) {
printf("Stack Overflow\n");
exit(EXIT_FAILURE);
} else {
s->top++;
s->items[s->top] = value;
}
}

// Function to pop an item from the stack
double pop(Stack *s) {
if (s->top == -1) {
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