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What is the difference between memoization and dynamic programming?
... class Solution {
public int climbStairs(int n) {
int memo[] = new int[n + 1];
return climb_Stairs(0, n, memo);
}
public int climb_Stairs(int i, int n, int memo[]) {
if (i > n) {
return 0;
}
if (i == n) {
return 1;
...
Date query with ISODate in mongodb doesn't seem to work
..., "code" : 10068 }
Try this:
db.mycollection.find({
"dt" : {"$gte": new Date("2013-10-01T00:00:00.000Z")}
})
or (following comments by @user3805045):
db.mycollection.find({
"dt" : {"$gte": ISODate("2013-10-01T00:00:00.000Z")}
})
ISODate may be also required to compare dates without t...
Why is a C++ Vector called a Vector?
...
Has that new C++ standard been released yet?
– Johannes Jensen
Jun 24 '10 at 10:30
1
...
How to Reverse Fragment Animations on BackStack?
...n_left, android.R.anim.fade_out)
.replace(R.id.fragment_container, new YourFragment)
.addToBackStack(null)
.commit();
Good luck to you!!
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How to install Boost on Ubuntu
...Anton Guryanov
9,63111 gold badge1212 silver badges1515 bronze badges
3
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C# Events and Thread Safety
... the list. However, that handler will still be executed because it'll be a new list. (Delegates are immutable.) As far as I can see this is unavoidable.
Using an empty delegate certainly avoids the nullity check, but doesn't fix the race condition. It also doesn't guarantee that you always "see" th...
How do I run a Python program in the Command Prompt in Windows 7?
...
You need to add C:\Python27 to your system PATH variable, not a new variable named "python".
Find the system PATH environment variable, and append to it a ; (which is the delimiter) and the path to the directory containing python.exe (e.g. C:\Python27). See below for exact steps.
The PA...
Max or Default?
...e(y => y.MyField == value)
.Select(y => y.MyCounter)
.Concat(new double[]{Double.MinValue})
.Max();
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What is the difference between DAO and Repository patterns?
...hen to retrieve that I should do something like this: CarRepository.getAll(new Criteria(carOwner.id, language.id)); which would give me all cars of a language in a specific language - is that the right way to do it?
– displayname
Jul 7 '15 at 14:10
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What is __pycache__?
... the bytecode is there, it's just hidden.
Rerun the command if you create new modules and wish to hide new bytecode or if you delete the hidden bytecode files.
On Windows the equivalent command might be (not tested, batch script welcome):
dir * /s/b | findstr __pycache__ | attrib +h +s +r
Whi...