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[Solved] in the c++ hacker rank preperation cause, the last index returns 0 when i reverse it. but when i try the code out in visual studio, it works perfectly [closed]

December 14, 2022 by Kirat

As mentioned in the comments, array should be initialized with a proper capacity. You should first read the size and then create the array. #include <iostream> using namespace std; int main() { int n; // First read the array size and then create the array. cin>>n; //inputting the array size int array[n]; //inputting the numbers … Read more

[Solved] Remove random string between two string android [closed]

December 13, 2022 by Kirat

You can use String#replaceAll() for this: String cleanPage = wikiPage.replaceAll(“\\[a href=.*?\\]”, “”)); 1 solved Remove random string between two string android [closed]

[Solved] Remove double quotes from a string rails 4

December 13, 2022 by Kirat

If you want to alter the var in place: str=”\”1,2,3,4\”” str.gsub!(‘”‘, ”) puts str # 1,2,3,4 2 solved Remove double quotes from a string rails 4

[Solved] cannot implicitly convert type int? to string[]

December 13, 2022 by Kirat

You can’t assign a int? to a string array… This should fix it. serializeModel.roles = new string[]{ user.RoleROLE_ID.ToString() }; 1 solved cannot implicitly convert type int? to string[]

[Solved] What is the concept of Database in Android? [closed]

December 13, 2022 by Kirat

Depends on the way you design your app. Usually, the sign-in feature is done by providing an option to enter the sign-in credentials in your app, and the server verifies the data that is entered in your app. You don’t want to store the entire database on your app, as it is safer within your … Read more

[Solved] add keys and values from input method [closed]

December 13, 2022 by Kirat

you can do: count=2 x= {} while count: name=input(‘name:’) value=int(input(‘value:’)) x[name]=value count-=1 maxKey= max(x, key=x.get) maxValue=max(x.values()) print maxKey,maxValue which will result in: solved add keys and values from input method [closed]

[Solved] Python – ” AttributeError: ‘str’ object has no attribute ‘Tc’ (Tc is one of the arguments) [closed]

December 13, 2022 by Kirat

It’s here: def preos(molecule, T, P, plotcubic=True, printresults=True): Tr = T / molecule.Tc # reduced temperature … preos(“methane”, 160, 10, “true”, “true”) You’re clearly passing “methane” into the preos function as a string, then trying to call .Tc on that string. The error is saying exactly that. This doesn’t have anything to do with IPython. … Read more

[Solved] Can anyone help me with this javascript?

December 13, 2022 by Kirat

change this : var (window.open(all)); to : window.open(all); Final code : <html> <head> <script> function myFunction() { var user=prompt(‘Your cpanel.cuccfree.com user’,”); var web=prompt(‘Your cpanel domainname’,’example’); var web2=prompt(‘Your cpanel domaintype (.com/.net/..)’,’cu.cc’); var url = “https://ifastnet.com/portal/cart.php?a=add&pid=89&configoption[193]=”; var url2 = “.472656&sld=”; var url3 = “&tld=”; var url4 = “&domainoption=owndomain”; var all = url + user + url2 + … Read more

[Solved] Find if two lines in 3D are collinear [closed]

December 13, 2022 by Kirat

Two lines are collinear if scalar multiplication of two vectors equals absolute value of a multiplication their length (it works in 3D). Simply write a method that calculate scalar multiplication private double scalarMultiply(Vector L1, Vector L2) { return L1.X()*L2.X() + L1.Y()*L2.Y() + L1.Z()*L2.Z(); } and length of vectors vectorMod = System.Math.Sqrt(x * x + y … Read more

[Solved] How do I use a class parents and children? [closed]

December 13, 2022 by Kirat

You need to give your “Person” a couple attributes either bool isBoy or string(Enum?) Gender as well as float bodyWeight or similar. Then you need to make a list of Person, and get the Average of each persons bodyWeight you can also search through this list to find where the person isBoy or gender matches … Read more

[Solved] What function would I need to use to block other apps/websites in my app? [closed]

December 13, 2022 by Kirat

So for a second app this is bit adventurous, but i will give you hints anyways ! Create a custom android launcher which will have two modes. Study mode and play mode. In study mode allow all the apps.and in the child mode allow on specified apps to be launched. There are multiple opensource launcher … Read more

[Solved] Using nested if statements ( Help ) [closed]

December 13, 2022 by Kirat

[Solved] Select a column and add its amount with other rows [closed]

December 13, 2022 by Kirat

Try the following: SELECT SUM(YourColumn) as Sum FROM YourTable 5 solved Select a column and add its amount with other rows [closed]

[Solved] Object in one class is the instance variable in the other. Relation between those classes?

December 13, 2022 by Kirat

The two classes are certainly related i.e. they have an Association. But, the nature of their relationship could either be an Aggregation or Composition. To give you an example and thereby explain how it’s different than Inheritance; consider the following classes: Shape (Base class; can be abstract) Circle, Triangle, Square etc. (Derived classes) Line, Colour … Read more

[Solved] how to does not record in sqlite if it is already in table [closed]

December 13, 2022 by Kirat

– (int) GetCount :(NSString *)UserID { [self createEditableCopyOfDatabaseIfNeeded]; [self initializeDatabase]; int count = 0; NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsDirectory = [paths objectAtIndex:0]; NSString *path = [documentsDirectory stringByAppendingPathComponent:@”dbfav2table.sqlite”]; if (sqlite3_open([path UTF8String], &database) == SQLITE_OK) { sqlite3_stmt *statement; NSString *sql_str = [NSString stringWithFormat:@”SELECT count(*) FROM tablename WHERE userID=’%@'”, UserID]; const char *sqlStatement = (char … Read more