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defaultdict of defaultdict?
Is there a way to have a defaultdict(defaultdict(int)) in order to make the following code work?
6 Answers
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How do you format an unsigned long long int using printf?
...ong modifier with the u (unsigned) conversion. (Works in windows, GNU).
printf("%llu", 285212672);
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C compile error: “Variable-sized object may not be initialized”
... not a compile time constant).
You must manually initialize that array:
int boardAux[length][length];
memset( boardAux, 0, length*length*sizeof(int) );
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Display current time in 12 hour format with AM/PM
...nks @RuchiraGayanRanaweei... i just wondering to capture the 24 format and convert it into the AM/PM format...
– gumuruh
Aug 6 '14 at 3:26
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How to retrieve all keys (or values) from a std::map and put them into a vector?
...ionally, it moves functionality away from the call site. Which can make maintenance a little more difficult.
I'm not sure if your goal is to get the keys into a vector or print them to cout so I'm doing both. You may try something like this:
std::map<int, int> m;
std::vector<int> key, ...
Append values to a set in Python
...
The way I like to do this is to convert both the original set and the values I'd like to add into lists, add them, and then convert them back into a set, like this:
setMenu = {"Eggs", "Bacon"}
print(setMenu)
> {'Bacon', 'Eggs'}
setMenu = set(list(setMen...
How to do constructor chaining in C#
... method) to pick the overload, inside the class:
class Foo
{
private int id;
private string name;
public Foo() : this(0, "")
{
}
public Foo(int id, string name)
{
this.id = id;
this.name = name;
}
public Foo(int id) : this(id, "")
{
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Practical uses for AtomicInteger
I sort of understand that AtomicInteger and other Atomic variables allow concurrent accesses. In what cases is this class typically used though?
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C#位运算符（C#按位与、按位或 等） - 更多技术 - 清泛网 - 专注C/C++及内核技术
...致，则运算结果的类型就是运算对象的类型。比如对两个int变量a和b做与运算，运算结果的类型还是int型。如果两个运算
对象的类型不一致，则C#要对不一致的类型进行类型转换，变成一致的类型，然后进行运算。
类型转换的...
What is the easiest way to initialize a std::vector with hardcoded elements?
...ne method would be to use the array to initialize the vector
static const int arr[] = {16,2,77,29};
vector<int> vec (arr, arr + sizeof(arr) / sizeof(arr[0]) );
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