The problem you describe is actually a very difficult problem in general, since it is related to the knapsack problem. But it is only hard if you allow very large amounts of money on the card and very many different prices. For your real world problem with very few different prices you can solve this … Read more
Something like this should work: paid = Math.Min(total, payment+paid) 3 solved Can an algorithm for this be done in one line? [closed]
Are these keywords identifiers? No, keywords are not identifiers. they gave me some keywords and tell me not to use them. What identifiers should I use then? For identifiers you have to use arbitrary words that are not keywords. It’s easier to explain with an example. Consider this line: int foo = 42; Here, int … Read more
In the function argument: char arr[9][5] In the loop: for (i = 0; i<5; i++) { for (j = 0; j<9;j++) { if (arr[i][j] == 1) You flipped the position of i and j. i should go from 0 to 9, j from 0 to 5. 0 solved garbage value in C array
decimal firstDecimal = 120.01M; double firstDouble = 120.01; float firstFloat = 120.01F; Console.WriteLine ((int)(firstDecimal * 100)); // 12001 Console.WriteLine ((int)(firstDouble * 100)); // 12001 Console.WriteLine ((int)(firstFloat * 100)); // 12001 Console.WriteLine (Convert.ToInt32(firstDecimal * 100)); // 12001 Console.WriteLine (Convert.ToInt32(firstDouble * 100)); // 12001 Console.WriteLine (Convert.ToInt32(firstFloat * 100)); // 12001 This means one thing…. you have something … Read more
I’ve written simple bots for Dialogflow / Google Home in C# using the following Nuget package. https://www.nuget.org/packages/Google.Cloud.Dialogflow.V2 Docs: https://developers.google.com/resources/api-libraries/documentation/dialogflow/v2/csharp/latest/ You can use the webhookrequest and webhookresponse classes to send and recieve information from Dialogflow. It can be a bit more trouble than the NodeJs version, but with some work it is possible. 1 solved Dialogflow … Read more
%d, %f are conversion specifier for printf and other function, this is not specific to the C language. Check man printf (and man scanf while you’re at it). With printf: if you use a period before the conversion specifier, you are asking for a precision. With the %f conversion, it affects the length of the … Read more
You can cast pointer to the first row of a two-dimensional array to pointer to int and sort the array as a one-dimensional array. Here you are #include <iostream> #include <iomanip> #include <cstdlib> #include <ctime> void bubble_sort( int *a, size_t n ) { for ( size_t last /* = n */; not ( n < … Read more
try this class Program { static void Main(string[] args) { Console.WriteLine(myFunction(14)); } public static int myFunction(int x) { return x + 2; } } solved Can’t convert from void to bool compile error
#include <string> #include <iostream> // std::cout & std::cin using namespace std; int main () { string str (“This is an example phrase.”); string::iterator it; str.erase (10,8); cout << str << endl; // “This is an phrase.” it=str.begin()+9; str.erase (it); cout << str << endl; // “This is a phrase.” str.erase (str.begin()+5, str.end()-7); cout << str … Read more
The format you’re describing for your text file is a CSV – Comma Separated Value. It’s a very common storage format, and there are many helpful tools and examples out there to work with it. So now that you know how it’s called, you can run more specific searches for things like “CSV C#” and … Read more
Do something like this: if(imageid != null) { SqlCommand command = new SqlCommand(” select Image from ImageStore where ImageID=” + imageid, connection); SqlDataReader dr = command.ExecuteReader(); dr.Read(); context.Response.BinaryWrite((Byte[])dr[0]); } else { SqlCommand command = new SqlCommand(” select Image from ImageStore where ImageID=0″, connection); SqlDataReader dr = command.ExecuteReader(); dr.Read(); context.Response.BinaryWrite((Byte[])dr[0]); } 1 solved Incorrect syntax near … Read more
Because you are passing the classes by const reference, I assume you want to copy them. For that you will need additional virtual member function clone which will return a pointer to a dynamically allocated copy of the object. class func { … virtual func* clone() const; … }; class polynom: public func { … … Read more
if (variable >= 1000) { printf(“INF”); } I chose a random variable name, but this logic should do what you want. 1 solved FloydWarshall infinite [closed]
The input is what we call stream based. It is not looking at lines of text at all. When it looks for an int, it looks for digit characters, until it finds something that isn’t a digit. In the first example, when the input is 1 2 3 after it reads each number, it finds … Read more