Julia enjoyed the workout using facebook code lab. She actually learned a few things about Type conversion in bit manipulation:
int - java - 32 bit
Java does not have unsigned int, use long.
But it causes problems!
She struggles and then she learns lessons.
This blog has everything about more than 5 practices, but it is hard to know what is going on.
http://juliachencoding.blogspot.ca/2016/07/reverse-unsigned-32-bit-integer.html
So, dedicate one blog on this issue:
2nd practice: not working, error on 32 bit integer, left most significant bit 1 means negative number.
https://gist.github.com/jianminchen/7bfdcd0c1643bf01c2bf6ba7acea6f70
Sorry, wrong answer. Your program's output doesn't match the expected output. You can try testing your code with custom input and try putting debug statements in your code.
Your submission failed for the following input:
A : 3
Your function returned the following :
-1073741824
The expected returned value :
32212254721 is int with 32 bit.
http://stackoverflow.com/questions/1032982/is-a-java-int-always-32-bits
should be: ret += ((long)1) << power;
3rd practice: fail to fix the issue.
https://gist.github.com/jianminchen/2b753978ffe983600a031a0fcda7b3a6
4th practice: Use bit manipulation - left shift to get 2^n value - code is working
https://gist.github.com/jianminchen/6a5c1ab71b01414f008b22386000ee59
Everyone faces challenges on court and I’m no different. Get out on court and overcome yours to #CreateYourMark pic.twitter.com/RSNn7AqFch— Ana Ivanovic (@AnaIvanovic) May 21, 2016
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