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How to reverse a singly linked list using only two pointers?
...out using a third. Simply cast the pointers to a int/long and perform the XOR operation a couple of times. This is one of those C tricks that makes for a fun question, but doesn't have any practical value.
Can you reduce the O(n) complexity? No, not really. Just use a doubly linked list if yo...
A Java collection of value pairs? (tuples?)
... a true tuple. For example the hashcode implementation in SimpleEntry just xors the codes of the elements, so <a,b> hashes to the same value as <b,a>. Tuple implementations often sort lexicographically, but SimpleEntry doesn't implement Comparable. So be careful out there...
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Is there a better way of writing v = (v == 0 ? 1 : 0); [closed]
...in different languages (VB). Yes a quick look-up will tell you that its an XOR operator and you will understand what its doing, but to many it may not be obvious at first glance. I don't think that means you need to quit your job.
– JD Isaacks
Aug 2 '11 at 15:4...
What does |= (single pipe equal) and &=(single ampersand equal) mean
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I think you want to use a XOR instead of an AND for this.
– GameZelda
Aug 4 '11 at 13:59
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Get difference between two lists
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Can be done using python XOR operator.
This will remove the duplicates in each list
This will show difference of temp1 from temp2 and temp2 from temp1.
set(temp1) ^ set(temp2)
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Calculate last day of month in JavaScript
...0 : 31 days
That means you can shift the value 3 places with >> 3, XOR the bits with the original ^ m and see if the result is 1 or 0 in bit position 0 using & 1. Note: It turns out + is slightly faster than XOR (^) and (m >> 3) + m gives the same result in bit 0.
JSPerf results: ...
Is there XNOR (Logical biconditional) operator in C#?
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XOR = A or B, but Not A & B or neither (Can't be equal [!=])
XNOR is therefore the exact oppoiste, and can be easily represented by == or ===.
However, non-boolean cases present problems, like in this example:
a = 5
b =...
Merge multiple lines (two blocks) in Vim
...ng block (in the example in the question abc and def) have the same length XOR
the first line of the starting block is the longest, and you don't care about the additional spaces in between) XOR
The first line of the starting block is not the longest, and you additional spaces to the end.
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Using the field of an object as a generic Dictionary key
...You might want to start with the Equals-Method and then (in GetHashCode()) xor the hash code of every member you compare in Equals.
public class Foo {
public string A;
public string B;
override bool Equals(object other) {
var otherFoo = other as Foo;
if (otherFo...
How can I map True/False to 1/0 in a Pandas DataFrame?
...r: numpy boolean subtract, the -` operator, is deprecated, use the bitwise_xor, the ^ operator, or the logical_xor function instead.` Using @User's answer fixes this.
– Amadou Kone
Mar 13 '19 at 16:01
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