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

struct no {
    int valor;
    struct no *proximo;
};

struct fila {
    struct no *inicio;
    struct no *fim;
};

void enqueue(struct fila *f, int valor) {

}

int dequeue(struct fila *f) {

}
int main() {

    return 0;
}