Use C's printf in simple.rs to provide a fair comparison.

Author: boxdot

simple.rs

@@ -1,15 +1,18 @@
+extern "C" {
+    fn printf(fmt: *const i8, ...) -> i32;
+}
+
 pub fn main() {
     print_triples();
 }
 
-
 fn print_triples() {
     let mut i = 0 as i32;
     for z in 1.. {
-        for x in 1..=z {
-            for y in x..=z {
-                if x*x + y*y == z*z {
-                    println!("({}, {}, {})", x, y, z);
+        for x in 1..z + 1 {
+            for y in x..z + 1 {
+                if x * x + y * y == z * z {
+                    unsafe { printf("(%i, %i, %i)\n".as_ptr() as *const i8, x, y, z) };
                     i = i + 1;
                     if i == 1000 {
                         return;