counting

I am trying to write a program to count the occurrences of a specific letter in a string without the count function. I made the string into a list and set a loop to count but the count is never changing and i cant figure out why. This is what I have right now: letter = 'a' myString = 'aardvark' myList = [] for i in myString: myList.append(i) count = 1 for i in myList: if i == letter: count == count + 1 else: continue print (count) Any help is greatly appreciated. Be careful, you are using count == count + 1 , and you must use count = count + 1 The operator to attribute a new value is = , the

I am trying to port my app to iOS5. I am using a TCP connection to a server via CFSockets. My problem now is the conversion (cast) from CFReadStreamRef to NSInputStream (same with write). With iOS4 I could use the toll-free bridging, but with automatic reference counting of iOS5 this isn't possible anymore. This is what I get: error: Automatic Reference Counting Issue: Cast to 'NSInputStream *' of a non-Objective-C to an Objective-C pointer is disallowed with Automatic Reference Counting Code: CFReadStreamRef readStream; CFWriteStreamRef writeStream; CFStringRef strRef =

I'm looking for a simple and basic way (ideal for beginners to learn the easiest way) to write a program in C++ which gets a string from the user and outputs the number of uppercase letters, lowercase letters and integers (numbers). I'm pretty amateur at using C++ syntax so please help me with an easy-to-understand syntax. Thanks! EDIT: Here is a very simple code that I found in Google and did some changes and corrections: #include <iostream> #include <conio.h> using namespace std; int main() { char array1[50]; int i = 0, lowercase = 0, uppercase = 0, numbers = 0, total; cout << "Enter a

I need to detect a spiral shaped spring and count its coil turns. I have tried as follows: Image<Bgr, Byte> ProcessImage(Image<Bgr, Byte> img) { Image<Bgr, Byte> imgClone = new Image<Bgr,byte>( img.Width, img.Height); imgClone = img.Clone(); Bgr bgrRed = new Bgr(System.Drawing.Color.Red); #region Algorithm 1 imgClone.PyrUp(); imgClone.PyrDown(); imgClone.PyrUp(); imgClone.PyrDown(); imgClone.PyrUp(); imgClone.PyrDown(); imgClone._EqualizeHist(); imgClone._Dilate(20); imgClone._EqualizeHist(); imgClone._Erode(10); imgClone.PyrUp(); imgClone.PyrDown(); imgClone.PyrUp(); imgClone.PyrDown();

What's the best way of counting all the occurrences of a substring inside a string? Example: counting the occurrences of Foo inside FooBarFooBarFoo One way to do is to use std::string find function: #include <string> #include <iostream> int main() { int occurrences = 0; std::string::size_type pos = 0; std::string s = "FooBarFooBarFoo"; std::string target = "Foo"; while ((pos = s.find(target, pos )) != std::string::npos) { ++ occurrences; pos += target.length(); } std::cout << occurrences << std::endl; } #include <iostream> #include <string> // returns count of non-overlapping occurrences of

I was recently making a program which needed to check the number of digits in a number inputted by the user. As a result I made the following code: int x; cout << "Enter a number: "; cin >> x; x /= 10; while(x > 0) { count++; x = x/10; } From what I can tell (even with my limited experience) is that it seems crude and rather unelegant. Does anyone have an idea on how to improve this code (while not using an inbuilt c++ function)? In your particular example you could read the number as a string and count the number of characters. But for the general case, you can do it your way or you can use a