corrected sample count

src/function.rs

@@ -42,7 +42,7 @@ impl Function {
 
             threads.push(std::thread::spawn(move || {
                 let mut hits: u64 = 0;
-                for _ in 0..samples {
+                for _ in 0..samples/thread_cnt {
                     let point: Point = bounds.get_random_point();
                     if function.includes(&point) {
                         hits += 1;
@@ -52,10 +52,17 @@ impl Function {
             }))
         }
 
+        for _ in 0..samples % thread_cnt {
+            let point: Point = bounds.get_random_point();
+            if function.includes(&point) {
+                hits += 1;
+            }
+        }
+
         for thread in threads {
             hits += thread.join().unwrap();
         }
 
-        return (hits as f64 / (thread_cnt * samples) as f64) * bounds.get_area();
+        return (hits as f64 / samples as f64) * bounds.get_area();
     }
 }