while is not running from the start

Question

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

main(){

 int parar=1; // Condição para parar.
 int a=0, b=0, c=0; //Elevadores
 int count=0; //Numero de pessoas
 char elevador=""; //Elevador

do{

  printf("Elevador: ");
  scanf("%c", &elevador);

  if(elevador == 'a'){
    a++;
    count++;
  }else if(elevador == 'b'){
    b++;
    count++;
  }else if(elevador == 'c'){
     c++;
     count++;
  }else{
     printf("inválido!");
  }

    printf("\nContinuar respondendo? s=1 n=0");
    scanf("%d", &parar);

  }while(parar != 0);
}

I am created a mini form for research but it is not being executed in the correct way, see how it is returned to me:

Answer 1

The basic code problem is that you are initiating a character as if it were a string, there is code not read correctly with the information. Use simple quotes to char.

This code can be improved, but it is not worth doing now because it is not even complete.

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

int main() {
    int parar = 1; // Condição para parar.
    int a = 0, b = 0, c = 0; //Elevadores
    int count = 0; //Numero de pessoas
    char elevador=' '; //Elevador
    do {
        printf("Elevador: ");
        scanf("%c", &elevador);
        if (elevador == 'a') {
            a++;
            count++;
        } else if (elevador == 'b') {
            b++;
            count++;
        } else if (elevador == 'c') {
           c++;
           count++;
        } else {
            printf("inválido!");
        }
        printf("\nContinuar respondendo? s=1 n=0");
        scanf("%d", &parar);
    } while (parar != 0);
}

Behold working in the ideone. And in the repl it.. Also put on the Github for future reference.

Answer 2

Good night. In the code you posted there’s a key you’re not opening

//this one down here where I left it in bold

} while(stop != 0); }