Array index out of bound in C

Array index out of bound in C

Why does C differentiates in case of array index out of bound#include int main(){ int a[10]; a[3]=4; a[11]=3;//does not give segmentation fault a[25]=4;//does not give segmentation fault a[20000]=3; //gives segmentat

Create a dictionary with list comprehension in Python

Create a dictionary with list comprehension in Python

I like the Python list comprehension syntax.Can it be used to create dictionaries too? For example, by iterating over pairs of keys and values:mydict = {(k,v) for (k,v) in blah blah blah} # doesn't work 1:In Python 2.6 and earlier, the

Convert matrix to 3-column table ('reverse pivot', 'unpivot', 'flatten'

Convert matrix to 3-column table ('reverse pivot', 'unpivot', 'flatten'

I need to convert the Excel matrix FIRST in the table LATER: FIRST: P1 P2 P3 P4F1 XF2 X XF3 X XF4 X XLATER:F P VALUEF1 P1 XF1 P2F1 P3F1 P4F2 P1 XF2 P2 XF2 P3F2

Random shuffling of an array

Random shuffling of an array

I need to randomly shuffle the following Array:int[] solutionArray = {1, 2, 3, 4, 5, 6, 6, 5, 4, 3, 2, 1};Is there any function to do that? 1:Using Collections to shuffle an array of primitive types is a bit of an overkill...It is simple

Alternatives to gprof [closed]

Alternatives to gprof [closed]

What other programs do the same thing as gprof? 1:Valgrind has an instruction-count profiler with a very nice visualizer called KCacheGrind. As Mike Dunlavey recommends, Valgrind counts the fraction of instructions for which a procedure

Asking the user for input until they give a valid response

Asking the user for input until they give a valid response

I am writing a program that must accept input from the user.#note: Python 2.7 users should use `raw_input`, the equivalent of 3.X's `input`age = int(input("Please enter your age: "))if age >= 18: print("You are able to vote in the Unite

Python: Random selection per group

Python: Random selection per group

Say that I have a dataframe that looks like:Name Group_IdAAA 1ABC 1CCC 2XYZ 2DEF 3 YYH 3How could I randomly select one (or more) row for each Group_Id? Say that I want one random draw per Group_Id, I would get:Name Group_IdAAA 1XYZ

hex string to character in python

hex string to character in python

I have a hex string like: data = "437c2123"I want to convert this string to a sequence of characters according to the ASCII table.The result should be like: data_con = "C|!#"Can anyone tell me how to do this? 1:In [17]: data = "437c2123

What is the status of ranges in C++?

What is the status of ranges in C++?

Sometimes I get tired of all this my_vector.begin(), my_vector.end() noise. Last year at boostcon, Andrei Alexandrescu's keynote speech was titled Iterators Must Go (video)Is there any progress on introducing ranges into C++, so I can final

How to to remove certain colors from an image with PHP or Ruby?

How to to remove certain colors from an image with PHP or Ruby?

Say there are 3 circles: red, blue, black.I only want the black circle to remain. How can I remove the red and blue circles? 1:Since you have asked for a PHP solution:First load your picture with imagecreatefrompng or the similar functio

VBA Object Model reference documentation

VBA Object Model reference documentation

Is there a place where I can simply find the Object Model hierarchy and kind of API for VBA for Excel 2013?I am looking at MSDN URLhttp://msdn.microsoft.com/en-us/library/office/ff841127(v=office.15).aspxBut that seems confusing.Example:If

R quantmod chartSeries newTA chob - modify legend and axis (primary and secundary)

R quantmod chartSeries newTA chob - modify legend and axis (primary and secundary)

This is an advanced question.I use my own layout for the chartSeries quantmod function, and I can even create my own newTA. Everything works fine. But ...What I want to do but I can't:a) Manipulate the legend of each of the 3 charts: -

Find the index of a given permutation in the list of permutations in lexicographic order [duplicate]

Find the index of a given permutation in the list of permutations in lexicographic order [duplicate]

Possible Duplicate: Given a string and permutation of the string. Find the index of this permuted string in the sorted list of the permutations of the string. This is an interview question. Let there is a list of permutations in lexicogra

How can I create a bar-chart with JFreeChart, that shortens too long bars with a visible hint?

How can I create a bar-chart with JFreeChart, that shortens too long bars with a visible hint?

I want to create a bar-chart, but extraordinary high values should be shortened. An example is this image:shortened graph http://www.epa.gov/recovery/images/bar-chart.gifI hope it is clear what I want.My question is: How can I do this with

Paramiko Error: Error reading SSH protocol banner

Paramiko Error: Error reading SSH protocol banner

I'm using Fabric for my build script. I just cloned one of my VMs and created a new server. The Fabric script (which uses paramiko underneath) works fine one server but not the other. Since it's a clone I don't know what could be different

How to implement a verbose REGEX in Python

How to implement a verbose REGEX in Python

I am trying to use a verbose regular expression in Python (2.7). If it matters I am just trying to make it easier to go back and more clearly understand the expression sometime in the future. Because I am new I first created a compact exp

R Shiny date slider animation by month (currently by day)

R Shiny date slider animation by month (currently by day)

I'm somewhat comfortable with R, lot less with Shiny, though it's not my first Shiny application.I have a data frame with lon/lat and the date/time of the entry in the system for every new customer. I also created other variables based on t

Make a pixel transparent in Matlab

Make a pixel transparent in Matlab

I have imported an image in matlab and before I display it how would I make the background of the image transparent? For example I have a red ball on a white background, how would i make the white pixels of the image tranparent so that only

Why can't I remove a string from a std::set with std::remove_if? [duplicate]

Why can't I remove a string from a std::set with std::remove_if? [duplicate]

Possible Duplicate: remove_if equivalent for std::map I have a set of strings:set strings;// ...I wish to remove strings according to a predicate, e.g.:std::remove_if ( strings.begin(), strings.end(), []( const wstring &s ) -> bool { ret

How can I do 64-bit arithmetic in Perl?

How can I do 64-bit arithmetic in Perl?

I am a perl newbie,Can I simply use 64-bit arithmetic in Perl?For example$operand1 = 0xFFFFFFFFFFFF; # 48 bit value$operand2 = 0xFFFFFFFFFFFF; # 48 bit value$Result = $operand1 * $operand2;I am basically looking for areplacement for the

UITextInputDelegate methods not functioning correctly

UITextInputDelegate methods not functioning correctly

I'm working on iOS 8 custom keyboard extension right now, and there are some issues in using UITextInputDelegate Methods.Does this right: selectionWillChange: and selectionDidChange: methods should be called when user long-presses typing ar

Google Maps Android API: SupportMapFragment vs MapFragment

Google Maps Android API: SupportMapFragment vs MapFragment

I read through the google maps API documentation and under MapFragment, it advises to use the class only when targeting API 12 and above. Then I assume that SupportMapFragment targets API 11 and below, though google didn't explicit mention

When should I use XML Serialization vs. Binary Serialization in the .NET framework?

When should I use XML Serialization vs. Binary Serialization in the .NET framework?

I'm confused - when should I be using XML Serialization and when should I be using Binary Serialization in the .NET framework? 1:Specific to .NET, If you have two applications that are using the same type system, then you can use binary

What is the purpose of PHP having a symbol (the dollar sign) in front of each variable? [duplicate]

What is the purpose of PHP having a symbol (the dollar sign) in front of each variable? [duplicate]

Possible Duplicate: Why PHP variables start with a $ sign symbol? I have looked at other programming languages and it seems that most of them do not have any symbol to show that something is a variable. Is there some reason why a PHP int

May an OAuth 2.0 access token be a JWT?

May an OAuth 2.0 access token be a JWT?

From what I can tell, the OAuth 2.0 specification is extremely vague in terms of what form an access token should take: The token may denote an identifier used to retrieve the authorization information or may self-contain the authorizati