Thread: Changing a variable

Hi. I'm trying to write a simple program where you need a key to open a door, and it requires you to get the key before opening the door. I'm getting some errors. This is what I have so far:

Code:

#include <stdio.h>
#define KEY 0

int a;

int main() {

    char c;
    int key;
    key = 0;

    printf("You stand before a locked door. There is a key nearby.\n\n");
    printf("a. Take key.\nb. Open door.\n");
    
    c=getch();
    
    if(c == 'a')  {
        printf("\nYou take the key.\n"); 
    }
    key = 1; 
    
        
    if(c == 'b') && KEY = 0 {
        printf("\nYou do not have the key.\n"); 
        
    if(c == 'b') && KEY = 1 {
        printf("\nThe door unlocks with ease.\n"); 
        
    }
}

Sorry for asking such a basic question, but if anybody can help me with this code, I'll appreciate it.