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Most efficient way to store thousand telephone numbers
...tal of 17 + (2^(17 - k) - 1) * 10 + 1000 * k, which attains its minimum 11287 for k = 10. So we can store all phone numbers in ceil(11287/8)=1411 bytes.
Additional space can be saved by observing that none of our numbers can start with e.g. 1111111(binary), because the lowest number that starts wit...
How to get the last element of a slice?
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edited Jan 1 '18 at 6:14
Benjamin W.
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What exactly does the “u” do? “git push -u origin master” vs “git push origin master”
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answered Apr 18 '11 at 2:02
dahlbykdahlbyk
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How to validate IP address in Python? [duplicate]
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181
Don't parse it. Just ask.
import socket
try:
socket.inet_aton(addr)
# legal
except s...
Class method decorator with self arguments?
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answered Jul 30 '12 at 23:38
li.davidmli.davidm
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regular expression: match any word until first space
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8 Answers
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Converting a string to an integer on Android
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answered Apr 25 '10 at 18:01
JonJon
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How to set the title of UIButton as left alignment?
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1589
Set the contentHorizontalAlignment:
emailBtn.contentHorizontalAlignment = .left;
You might a...
Order a List (C#) by many fields? [duplicate]
...aleDavid Neale
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Remove the cell highlight color of UITableView
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answered May 7 '10 at 8:10
VladimirVladimir
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