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

#define MAX_RETRIES 2

int main(void) {

  char passwd[100];

  printf("Digite a sua senha para ser salva: ");
  fgets(passwd, 100, stdin);

  passwd[strcspn(passwd, "\n")] = '\0';

  int granted = 0;

  for (int tries = 0; tries <= MAX_RETRIES && granted == 0; tries++) {
    char input[100];

    printf("Digite a sua senha de acesso: ");
    fgets(input, 100, stdin);

    input[strcspn(input, "\n")] = '\0';

    if (strcmp(passwd, input) == 0) {
      granted = 1;
    } else {
      printf("Senha incorreta! %d tentativa(s) restante(s).\n",
             MAX_RETRIES - tries);
    }
  }

  if (granted == 1) {
    printf("Acesso liberado!\n");
  } else {
    printf("Acesso bloqueado!\n");
    return EXIT_FAILURE;
  }

  return EXIT_SUCCESS;
}