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How to drive C#, C++ or Java compiler to compute 1+2+3+…+1000 at compile time?
...ly strange question. The interviewer asked me how can I compute 1+2+3+...+1000 just using compiler features. This means that I am not allowed to write a program and execute it, but I should just write a program that could drive the compiler to compute this sum while compilation and print the result ...
How to unzip files programmatically in Android?
...m(is));
ZipEntry ze;
byte[] buffer = new byte[1024];
int count;
while ((ze = zis.getNextEntry()) != null)
{
filename = ze.getName();
// Need to create directories if not exists, or
// it will generate an...
Get the time difference between two datetimes
...will work ONLY when the total duration is less than 24 hours:
var now = "04/09/2013 15:00:00";
var then = "04/09/2013 14:20:30";
moment.utc(moment(now,"DD/MM/YYYY HH:mm:ss").diff(moment(then,"DD/MM/YYYY HH:mm:ss"))).format("HH:mm:ss")
// outputs: "00:39:30"
If you have 24 hours or more, the ho...
When to use the different log levels
...
answered Jan 8 '10 at 22:26
GrayWizardxGrayWizardx
15.6k22 gold badges2727 silver badges4343 bronze badges
...
Getting a slice of keys from a map
...
209
For example,
package main
func main() {
mymap := make(map[int]string)
keys := make([]...
Rotate axis text in python matplotlib
...ey get closer and closer until they overlap. I'd like to rotate the text 90 degrees so as the samples get closer together, they aren't overlapping.
...
App Inventor 2 SQLite 拓展：超流行兼容主流SQL语法的迷你本地数据库引擎 ...
...工作，因此不会阻塞主 UI 线程。这对于在可能需要超过 100 毫秒左右的操作期间获得良好的用户体验非常重要。阻塞主 UI 线程将使您的应用程序看起来“冻结”并变得无响应，用户不喜欢这样。
当您需要执行需要一段时间的数...
Try-catch speeding up my code?
...
1063
One of the Roslyn engineers who specializes in understanding optimization of stack usage took ...
Changing one character in a string
...
answered Aug 4 '09 at 16:41
scvalexscvalex
12.7k22 gold badges3131 silver badges4242 bronze badges
...
Include jQuery in the JavaScript Console
...
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