#include <stdio.h>
#include <string.h>
#include <windows.h>

void int_to_bin(int number);

int main()
{

    int a=3;
    //int certo=0;
    char nome[50];
    char password[50];
    while(a>0)
    {

        printf("Insira Username:");

        gets(nome);

        if(strcmp(nome,"xpto")==0)
            printf("Username Correto!\n");
        else
            printf("Username Incorreto!\n");

        printf("Insira Password:");

        gets(password);

        if(strcmp(password,"123")==0)
            printf("Password Correta!\n");
        else
            printf("Password Incorreta!\n");


        if(strcmp(nome,"xpto")==0 && strcmp(password,"123")==0)
            {
            printf("Bem vindo\n");
            goto sair;
            }
        else


        a--;
        printf("Restam %d tentativas\n",a);
    }
    if(a==0)
        exit(0);//sair do programa

    printf("Errou");

    sair:
        printf("Entrou no projeto\n");

    //Conversão de números para binário

   do //repetição do programa
   {
    int x;
    //char resp;

    printf("\nIntroduza um numero:\n");
    scanf("%d", &x);

    printf("Em Decimal o numero e: %d \n", x);

    int_to_bin(x);

    printf("\nGostaria de repetir o programa? S/N : ");
    getchar();

    }while(getchar()=='s');
    printf("\n");

    return (0);
}



void int_to_bin(int number)
{
    unsigned int i, step;

    if (0 == number)  /* For simplicity's sake, I treat 0 as a special case*/
    {
        printf("0000");
        return;
    }

    i = 1<<(sizeof(number) * 8 - 1);

    step = -1; /* Only print the relevant digits */
    step >>= 4; /* In groups of 4 */
    while (step >= number)
    {
        i >>= 4;
        step >>= 4;
    }

    /* At this point, i is the smallest power of two larger or equal to n */
    while (i > 0)
    {
        if (number & i)
            printf("1");
        else
            printf("0");
        i >>= 1;
    }
}