text: #include <stdio.h>
  
  int fatorial(unsigned int i) {
  
     if(i <= 1) {
        return 1;
     }
     return i * fatorial(i - 1);
  }
  
  int  main() {
     int i = 7;
     printf("fatorial de %d é %d\n", i, fatorial(i));
     return 0;
  }