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C++STL容器使用经验总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
...ctor、string或deque，则使用erase-remove习惯用法。
SeqContainer<int> c;
c.erase(remove(c.begin(),c.end(),1963),c.end());
如果容器是list，则使用list::remove。
如果容器是一个标准关联容器，则使用它的erase成员函数。
要删除容器中满足特定条件的...
What does a lazy val do?
...val is executed when it is accessed the first time.
scala> val x = { println("x"); 15 }
x
x: Int = 15
scala> lazy val y = { println("y"); 13 }
y: Int = <lazy>
scala> x
res2: Int = 15
scala> y
y
res3: Int = 13
scala> y
res4: Int = 13
In contrast to a method (defined with d...
How do I skip an iteration of a `foreach` loop?
...
You want:
foreach (int number in numbers) // <--- go back to here --------+
{ // |
if (number < 0) // |
{ ...
Reading a simple text file
...ring text="";
String[] s;
private Vector<String> wordss;
int j=0;
private StringTokenizer tokenizer;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
se...
Using an integer as a key in an associative array in JavaScript
... saying. However, note that you can not have integer keys. JavaScript will convert the integer to a string. The following outputs 20, not undefined:
var test = {}
test[2300] = 20;
console.log(test["2300"]);
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Difference between API and ABI
... some library function we write code like:
long howManyDecibels = 123L;
int ok = livenMyHills( howManyDecibels);
and we needed to know that there is a method livenMyHills(), which takes a long integer parameter. So as a Programming Interface it's all expressed in source code. The compiler turns...
Is it possible to Pivot data using LINQ?
...e key (hierarchical shape). To pivot, you must project the hierarchy back into a row/column form of your choosing.
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Strtotime() doesn't work with dd/mm/YYYY format
...te_from_format('d/m/Y', $srchDate), 'Y/m/d');
This will work for you.
You convert the String into a custom date format where you can specify to PHP what the original format of the String is that had been given to it.
Now that it is a date format, you can convert it to PHP's default date format, whi...
How to fix Python indentation
...8 package_dir --recursive --select=E101,E121 --in-place
See also Tool to convert Python code to be PEP8 compliant.
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How to get maximum value from the Collection (for example ArrayList)?
There is an ArrayList which stores integer values. I need to find the maximum value in this list. E.g. suppose the arrayList stored values are : 10, 20, 30, 40, 50 and the max
value would be 50 .
...