c++

[Solved] How can i find all the times between two given dates and time? [closed]

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Gee, sometimes its fun to overengineer things. There is an Aggregate function which turns a list into a scalar value – lets create one that goes the other way public static class Extensions { public static IEnumerable<T> Explode<T>(this T value, Func<T,T> next, Func<T,bool> limit) { var n = value; while(!limit(n)) { yield return n; n … Read more

[Solved] How to List candidate word

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You can go with this: List<string> strings = new List<string>() { “abc”, “abb”, “acc”, “acb”, “zx”, “zxc”, “zxx”, “caa”, “cba”, “ccc”, }; string input = “ab”;// <= or whatever foreach (string foundString in strings) { if (foundString.StartsWith(input)) { Console.Out.WriteLine(foundString); } } 2 solved How to List candidate word

[Solved] Heap Sort doesn’t work properly

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In the comments, you mention that you’re using array indexes in the interval 1..N for an array of size N+1, but the size you pass in is N+1. If that’s true, you have an off-by-one error in max-heapify(): if size is N+1, the last position you can access is N, not N+1, so you must … Read more

[Solved] C++: friend as main in class

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Can main function become friend function in C++ ? Yes, it can. The friend declaration in your class A grants function main() the right of accessing the name of its non-public data members (in this case, i): friend int main(); The object obj is default-constructed, and A‘s constructor sets the value of i to 10: … Read more

[Solved] Interface inheritance and derived classes

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You can, if you correct your mistake in defining an interface and specify a return type on your methods. interface Interface1 { void Method1(); } interface Interface2 : Interface1 { void Method2(); } class Class1 : Interface1 { public void Method1() { } } class Class2 : Class1, Interface2 { public void Method2() { } … Read more

[Solved] The best color to track using opencv

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The best way to track object is to transform the video you get from RGB to HSV //convert frame from BGR to HSV colorspace cvtColor(cameraFeed,HSV,COLOR_BGR2HSV); and than use erode() and dilate() function to avoid disorders. Than using a certain range of HUE values you can select a range of colors. There isn’t a best color, … Read more

[Solved] std::ofstream won’t write to file (sometimes) [closed]

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In an amazingly unsatisfying turn of events I voted to close my question. The problem was apparently caused by undefined behavior in unrelated code. And that because I did something that’s defined in C++11 but is not in C++03. Apparently you can’t call constructors from constructors in C++03…. Because of that, and because the question … Read more

[Solved] How to export csv file with specific name?

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Your switch case is incorrect, right now you’re making a mix of switch case and if statements, but your switch case will always go to case 9 and you don’t actually need a switch case on integers. You need to change it to something like this: string o = saiNathHospitalDataSet.Tables[“PatientTable”].Rows[i][“WARD NAME”]; const string a = … Read more