 diff --git include/fast_div.hpp include/fast_div.hpp
-index 355766f..8fda6ab 100644
+index 355766f..17b5802 100644
 --- include/fast_div.hpp
 +++ include/fast_div.hpp
 @@ -1,5 +1,8 @@

 
 #include <stdint.h>
 #include <algorithm>
@@ -80,10 +81,10 @@ T1 S2_easy(T1 x,
     // where phi(x / n, b - 1) = pi(x / n) - b + 2
     while (primes[l] > min_clustered_easy_leaf)

 #include <cassert>
 #include <limits>
 
@@ -26,6 +30,156 @@ inline int64_t fast_div(int64_t x, int32_t y)
   return x / y;
 }
 
