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HashMap get/put complexity
We are used to saying that HashMap get/put operations are O(1). However it depends on the hash implementation. The default object hash is actually the internal address in the JVM heap. Are we sure it is good enough to claim that the get/put are O(1) ?
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What is Weak Head Normal Form?
What does Weak Head Normal Form (WHNF) mean? What does Head Normal form (HNF) and Normal Form (NF) mean?
6 Answers
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Why should eval be avoided in Bash, and what should I use instead?
Time and time again, I see Bash answers on Stack Overflow using eval and the answers get bashed, pun intended, for the use of such an "evil" construct. Why is eval so evil?
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In C++, is it still bad practice to return a vector from a function?
...+0x if the class has a move constructor, or do C++ programmers consider it weird/ugly/abomination?
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ListCtrl 重绘（Custom Draw） - C/C++ - 清泛网 - 专注C/C++及内核技术
...t<NMLVCUSTOMDRAW*>( pNMHDR );
// Take the default processing unless we set this to something else below.
*pResult = 0;
// First thing - check the draw stage. If it's the control's prepaint
// stage, then tell Windows we want messages for every item.
if ( CDDS_PREPAINT ==...
What exactly does big Ө notation represent?
I'm really confused about the differences between big O, big Omega, and big Theta notation.
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Why does JQuery have dollar signs everywhere?
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Catching an exception while using a Python 'with' statement
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Why this line xmlns:android=“http://schemas.android.com/apk/res/android” must be the first in the la
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