[ad_1] Here’s a great page to read … http://www.c4learn.com/data-structure/basic-stack-concept/ I can not take snippets from it – as it’s full of images and done in a good way to fully understand stacks and how they work. This will then allow you get to grips with the code you posted in your question. [ad_2] solved Stack … Read more
[ad_1] Dict* test = (Dict*)malloc(sizeof(Dict)); does not do what you think it does. malloc allocates a block of memory, but does not initialize it. So later on, when you call test->nodes.push_back, you’re calling into uninitialized memory. Undefined behavior. In your case, it crashes. The solution here is allocate test with new, which will initialize both … Read more
[ad_1] When is using the “this pointer” useful in a C++ program When you need a pointer to the current object. One of the most often usages of this that I have seen is to make self assignment a noop. Foo& Foo::operator=(Foo const& rhs) { if ( this != &rhs ) { // Assign only … Read more
[ad_1] The preprocessor directive #define OUTPUT(j) count++ makes the preprocessor to replace every occurrence of OUTPUT(j) with count++ where j is variable and can be used in the patter part of the directive. The code #define OUTPUT(j) count++ int count(4); OUTPUT(1234); std::cout << count << ‘\n’; is translated to int count(4); count++; std::cout << count … Read more
[ad_1] In your function L(int x) If x is 0 or 1 return 1; If x is greater than 1 return L(x-1) + L(x-2) + 1; What I am doing using L(x – 1) is calling the function for the value x – 1 and the value will be evaluated directly as 1 if it … Read more
[ad_1] “While” loop isn’t necessary. Your code works perfectly fine without while loop, if you write like this: scanf(“%d”, &t); for (i = 1; i <= t; i++) If you want multiple “t” inputs you should move your return statement after while brace: int t, i; float h, l, w; while (scanf(“%d”, &t)) { for … Read more
[ad_1] I think it is easier to translate SQL using query comprehension syntax instead of lambda syntax. General rules: Translate inner queries into separate query variables Translate SQL phrases in LINQ phrase order Use table aliases as range variables, or if none, create range variables from table names abbreviations Translate IN to Contains Translate SQL … Read more
[ad_1] Here’s a tip. You’ll want to start at the users number and count down to 0. Like this: int finalNum = 0; int userNum; //This is where you need to get the user’s number…. while(userNum > 0) { finalNum += userNum; userNum–; } //Do whatever you need to finalNum…. EDIT: It appears you’ve posted … Read more
[ad_1] I believe you want the following: //You would want to create a custom Player class to store this data as it looks silly here but: string[] objectNames = { “player1”, “player2”, “player3”, “player4” }; int[] objectPositionX = { 5, 10, 15, 20 }; int[] objectPositionY = { 50, 60, 70, 70 }; for (int … Read more
[ad_1] The problem is that you are declaring your string array inside the loop and never populating it with anything. Move that string array outside the loop instead. Also, I don’t think you want to write the file every time through the loop, so move file write outside the loop too. static void Main(string[] args) … Read more
[ad_1] I assume you want to max and average only over specific ranges in the multidimensional array. Using extension methods it’s a bit complicated, but you can do it like this: var myArray1 = new double[320, 18]; var myArray2 = new double[8, 18]; int dim2 = myArray1.GetLength(1); myArray2[0, 0] = myArray1.Cast<double>().Select((val, idx) => new { … Read more
[ad_1] There is direct method Enumerable.Reverse, you can do as below listNum .Reverse() for your code do like this for (int i = ListLength -1; i >= 0; i–) reverseList.Add( listNum[i]); just for the information it’s List it’s not array 2 [ad_2] solved Reversing a List of ints
[ad_1] Here are the answers to your questions: Is & and | valid in C so that short circuit can be avoided? No. The & and | operators in C mean different things compared to their C# logical counterparts. In C, & and | are bitwise operators. They will evaluate both the sides and combine … Read more
[ad_1] Has anyone actually developed a C# dll in Visual Studio 2010 that could be registered on another pc via regasm? Yes, someone has done it. Look at the documentaion on creating an interop DLL to see if there’s a step you may have missed. A common problem is forgetting to set the ComVisible property … Read more
[ad_1] The issue is that by setting compilation options, you’re throwing away all options that come from the project. If you just comment out the line compilation = compilation.WithOptions(options);, compilation should succeed (at least it does for me for a newly created VB.NET WinForms project). 1 [ad_2] solved Compiler Issue in Visual Basic Project With … Read more