char name; This gives you a single char object. char name[5]; This gives you 5 char objects, one after the other – this is called an array of 5 chars. You can index them with name[0], name[1]… until name[4]. “best” This is a string literal. It represents an array of 5 chars in read-only memory, … Read more
What about this regex? \(‘(.*)’\) You need to escape ( and ) since those are reserved in Regex. So every time you encounter a ( or a ) which you want to evaluate as a literal, you need to escape them. 8 solved Writing ( and ) in a regex doesn’t work
You can only use assignment in a class definition if it is part of member initialization, as in int a = 1;, or in a method/constructor/property body, so if you want to assign a value right after initializing it, you’d have to put it in the constructor: public Form1() { a = 2; InitializeComponent(); } … Read more
int *ptr; is a pointer to an interger, but you never initialized it. The value of ptris not defined so this is undefined behavior. To make your code work, the value of ptr has to be an address of a variable with type int. *ptr and **p_ptr tries to read the value where ptr refers … Read more
Perhaps like this. Note that string concatenation cannot be done on simple char types. #include <stdio.h> #include <string.h> int main (void) { char s1[] = “stack”; // skipped the string inputs char s2[] = “overflow”; char str[120]; size_t i; // var type returned by `strlen` size_t index = 0; size_t leng1 = strlen(s1); size_t leng2 … Read more
int function(int a, int b){ // two variables, a and b, are declared and set equal to whatever you passed in when you called the function. a = a*b; // now you are using the two already-declared variables return(a); // return the value of ‘a’ which was declared in the first line and then modified … Read more
Calculate the cumulative sum of the array and store it in another one, that is to say, accumulated[i] = sum of numbers of the array up to ith index. This can be computed in O(n). Then for a query, the answer will be accumulated[r] – accumulated[l]. This is O(1) solved Competitive programming: “Time exceeded error”
It means you’ve got a typo. It should be cout<<“v=”<<v.getInd(); the same as the line above. 0 solved No match for ‘operator
You are getting the warning because you have left open scenarios where a return statement may not be reached. Currently you only have one, in your else statement scope. What will you return outside of the scope of the else statement? solved Getting warning: control may reach end of non-void function when trying to compile
C++ How to distinguish Multimap with duplicate keys with value and and Unique keys with values in different map containers with O(n) traversal solved C++ How to distinguish Multimap with duplicate keys with value and and Unique keys with values in different map containers with O(n) traversal
For starting the development process using libraries like OpenCV or OpenGL,you need to install some packages and do a bunch of configurations on your Visual Studio.From here you can download the missing packages for windows,you can also have a Quick start on the website which will get you on the path for beginning,to be more … Read more
i suggest keeping a collection of those objects for your form(or in another scope above the Button_Click method) and adding a new object to that in the event receiver like: var coll = new List<Classname>(); protected void Button1_Click(object sender, EventArgs e) { coll.Add(new Classname()); } 0 solved Creating objects on click button event [closed]
As you have already pointed out yourself in the comments, the shortest path from (0,2) to (3,1) is “right 3 down 1” in other words: right 3-0=3 and down 2-1=1 And that’s already pretty much the answer… In general, how do find the shortest path from (xStart, yStart) to (xEnd, yEnd)? You just do the … Read more
The match you are looking for is looking for an actual link <[ignore]a href….> but the first link you see in the source (the w3c link) is in the head. If you want to get that you would have to remove the hrefs match (eg just find links on the page) or modify it to … Read more
Why don’t you use Tab Control of Windows Forms? Do you need to create it yourself? http://msdn.microsoft.com/en-us/library/4akwf92a.aspx 2 solved How to make a tabbed window as in the picture using Visual C# (Studio 2010)