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Finding three elements in an array whose sum is closest to a given number
...P: Given an array A of n integers and a target value S, does there exist a 3-tuple from A that sums to S?
modified problem P': Given an array A of n integers, does there exist a 3-tuple from A that sums to zero?
Notice that you can go from this version of the problem P' from P by subtracting ...
What does ~~ (“double tilde”) do in Javascript?
... because the bitwise operators implicitly convert their operands to signed 32-bit integers. This works whether the operands are (floating-point) numbers or strings, and the result is a number.
In other words, it yields:
function(x) {
if(x < 0) return Math.ceil(x);
else return Math.floor(x);...
Python, remove all non-alphabet chars from string
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123
Use re.sub
import re
regex = re.compile('[^a-zA-Z]')
#First parameter is the replacement, seco...
How to declare a global variable in a .js file
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answered Jun 3 '09 at 11:48
PatrikAkerstrandPatrikAkerstrand
42.6k1111 gold badges7272 silver badges9292 bronze badges
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How do I disable orientation change on Android?
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318
Update April 2013: Don't do this. It wasn't a good idea in 2009 when I first answered the ques...
How to pass a single object[] to a params object[]
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answered Aug 30 '08 at 21:36
Adam WrightAdam Wright
47k1111 gold badges126126 silver badges148148 bronze badges
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Difference between binary tree and binary search tree
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573
Binary tree: Tree where each node has up to two leaves
1
/ \
2 3
Binary search tree: U...