Fixed lucky_numbers

math/lucky_numbers.cpp

@@ -3,23 +3,23 @@
 // algorithms.abranhe.com/math/lucky-numbers
 
 #include <stdio.h> 
-#define bool int 
+#include <math.h>
 
 /* Returns 1 if n is a lucky no. ohterwise returns 0*/
 bool isLucky(int n) 
-{ 
-    static int counter = 2; 
-      
+{       
+    static int counter = 2;
+
     /*variable next_position is just for readability of 
         the program we can remove it and use n only */
     int next_position = n; 
     if(counter > n) 
-        return 1; 
-    if(n%counter == 0) 
-        return 0;      
+        return true; 
+    if(n % counter == 0) 
+        return false;      
 
     /*calculate next position of input no*/
-    next_position -= next_position/counter; 
+    next_position -= floor(next_position / counter); 
 
     counter++; 
     return isLucky(next_position); 
@@ -35,3 +35,4 @@ int main()
         printf("%d is not a lucky number.", x); 
     getchar(); 
 } 
+