Print amount of steps at the end

README.md

@@ -7,6 +7,9 @@ To build:
 - With GMP: Run `make -j1` (any more than `-j1` doesn't really do anything, there's four things to do and they can't be put out of order).
 - Without GMP: Run `make gmpless -j1` (see above parenthetical statement).
 
+You can get releases at [here](https://git.sdf.org/ilikecats/collatz/releases), but only GMP releases (except for 1.0), and only for GNU/Linux (except for 1.0).
+You have to build without GMP if you don't want to/can't use GMP.
+
 Algorithm:
 - Start with number.
 - If number is even, divide by two.

main.cpp

@@ -29,12 +29,15 @@ int main(int argc, char* argv[]) {
   }
   mpz_t x; // mpz_t is the GMP equiv. of int
   mpz_t xmod2; // Store x % 2
+  mpz_t steps; // Steps taken to get to one
   // Init vars (if not disabled init)
 #ifndef GMPLESS
   mpz_init_set_str(x, argv[1],10);
   mpz_init(xmod2);
+  mpz_init(steps);
 #else
   x = std::stoll(argv[1]);
+  steps = 0;
 #endif
   // Output x
   std::cout << x << '\n';                                 // impacted section of code
@@ -47,6 +50,8 @@ int main(int argc, char* argv[]) {
       mpz_mul_ui(x,x,3); // x *= 3
       mpz_add_ui(x,x,1); // x += 1
     }
+    mpz_add_ui(steps,steps,1); // steps += 1
     std::cout << x << '\n';
   }
+  std::cout << "Steps: " << steps << '\n';
 }