[Solved] How can you select and filter dictionary keys based on their values using Linq?

there can ba multiple values that match the condition – Dictionary<int, decimal> dict = new Dictionary<int,decimal>(); dict.Add(1, 392.3m); dict.Add(2, 612m); dict.Add(3, 981m); dict.Add(4, 344.23m); List<int> Result = dict.Where(x => x.Value < 400).Select(x => x.Key).ToList(); 0 solved How can you select and filter dictionary keys based on their values using Linq?

[Solved] Iteration vector 5 in 5 seconds c [closed]

Assuming the vector has 5 elements: #include <chrono> #include <thread> /* introduced with c++11, make sure your compiler is up to date and is set to compile c++ with this version of the STL and standard */ for (int i = 0; i < count; ++i) { cout << vector[count] << endl; std::this_thread::sleep_for(std::chrono::seconds(1)); } You … Read more

[Solved] Why does Qt use arrow syntax? [closed]

This isn’t a choice of Qt, but the way proper design in C++ works. -> dereferences a pointer to an object to access a member of it. Passing a pointer around tends to be the cleanest method of access to an object. solved Why does Qt use arrow syntax? [closed]

[Solved] jQuery reuse of CSS-hover? [closed]

1) a event that activate and deactivate the CSS houver; 2) a complex selector logic. In both examples mentioned above, you STILL CAN use CSS classes. Simply perform a toggleClass using jQuery for a specially-defined class that overrides the default hover functionality. Example, you have this: .myElement { color: green; } .myElement:hover { color: red; … Read more

[Solved] Compare char array [closed]

Assuming that CDdata[i].artist and search are char* or const char*, all you’re currently doing is comparing the pointers not the values. You need to use something like if (strcmp(CDdata[i].artist, search)) which will return 0 for equality. strcmp is a standard function in the C standard library. solved Compare char array [closed]

[Solved] SQL server remove space before value when I insert data

Of course any kind of problems surface when you use string concatenation to build command text. In your case you have inadvertently added a space before your control values. If you had used a parameterized query this problem would not have arisen SqlCommand cmd1 = new SqlCommand(“INSERT INTO [Contracts].[dbo].[Contract] ” + “([Contract_Id],[Name],[Description],[Contracted_by],[Vendor_Name],[Related_Dept],” + “[Start_date],[Expiration_Date],[TypeofContract],[Contact_Person],” + … Read more

[Solved] Regular expressions : how to find [closed]

The regex itself, while ugly and inefficient, should work. You do need to assign the string you’re adding into the regex before building the regex, though. While we’re at it, let’s clean it up: string tmprect = “gg_rct_MyReg1″; Regex regexObj = new Regex(@”^\s*set\s+” + tmprect + @”\s*=\s*Rect\s*\(\s*([^,\s]*)\s*,\s*([^,\s]*)\s*,\s*([^,\s]*)\s*,\s*([^)\s]*)\s*\).*$”); ([^,\s]*) matches any number of characters except commas … Read more

[Solved] Is this prepared statement?

Yes you are using a prepared statement with a parameter. That’s the right thing to do. Parameters are the best way to write safe SQL statements in the majority of cases. There are just a few edge cases where they don’t help (see my answer to how safe are PDO prepared statements) I can suggest … Read more

[Solved] Print a sentence with placeholder and function from an external file. Problem with importing forms, using and retrieving content

Move the dictionaries in dicts.py and create a class in template.py to return required template.You can create as many templates as you want in templates.py. dicts.py teams = {…} nouns = {…} article_words = {…} template.py from grammer import getArticle import random class Template(): def __init__(self,**kwargs): self.__dict__.update(kwargs) # must define other variables like article which … Read more

[Solved] Is *a++ = *b++ = 0 safe

In C and C++ you need to consider the possibility that a == b, which would certainly render it unsafe. And in C++ you also need to exclude the possibility that a and b refer to the same name, i.e. that at least one is a reference. But excluding that, and assuming *a and *b … Read more

[Solved] comparing five integers with if , else if statement

try this : int main () { int n1, n2, n3, n4, n5, biggest,smallest; cout << “Enter the five numbers: “; cin >> n1 >> n2 >> n3 >> n4 >> n5 ; smallest=biggest=n1; if(n2>biggest){ biggest=n2; } if(n2<smallest){ smallest=n2; } if(n3>biggest){ biggest=n3; } if(n3<smallest){ smallest=n3; } if(n4>biggest){ biggest=n4; } if(n4<smallest){ smallest=n4; } if(n5>biggest){ biggest=n5; } … Read more