Changing just the mod operation to int32 made the whole program run about 2.5 
times faster for me.  Wow!  I had no idea that there would be that much 
difference.

John

    John Souvestre - New Orleans LA

-----Original Message-----
From: golang-nuts@googlegroups.com [mailto:golang-nuts@googlegroups.com] On 
Behalf Of Konstantin Shaposhnikov
Sent: 2017 February 26, Sun 00:42
To: golang-nuts
Subject: [go-nuts] Re: [Newbie] Why this code is so slow?

int type in Go is 64 bit on 64 bit system . Most likely you are using 32 bit 
integers in other languages (e.g. int in Java). 64 bit division is slower than 
32 bit. Try changing your Go program to use int32 instead and see if it becomes 
faster.

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