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Programming Articles
Page 1619 of 2547
Find the number of elements greater than k in a sorted array using C++
In this problem, we are given an array arr[] consisting of N sorted integer values and an integer k. Our task is to Find the number of elements greater than k in a sorted array. Example Here are some examples of counting the array elements greater than the given target element: Input: arr = {6, 12, 16, 23, 32, 45, 48, 50} target = 20 Output: 5 Input: arr = {6, 12, 15, 20, 32, 45, 48, 50} target = 20 Output: 4 Finding number of elements greater than k in a sorted arrayHere is a list of ...
Read Morefdim() in C++
C++ fdim() Function The fdim() function returns the positive difference between two floating-point values. For example, if we have two arguments, a and b, respectively, then it will return a-b if a > b, else it will return 0. This function is defined under or header files and supports float, double, and long double overloads. Syntax Here is the following syntax for fdim() function in C++. In the following syntax, data_type defines the type of data it will take as input and return. data_type fdim(data_type value_1, data_type value_2); Parameters This method accepts two parameters of floating type (i.e., can ...
Read MoreHow to find the last occurrence of an element in a Java List?
In this article, we will learn how to find the last occurrence of an element in a Java List. It is a collection in which we can store and access elements in serial order. We can use the following ways to find the last occurrence of an element in a Java List: Using a For Loop LastIndexOf() Method Using Stream API Using a For Loop We would use a for loop to iterate through the list in reverse order and check if the desiredelement is equal ...
Read MoreHow to determine if all elements are the same in a Java List?
In this article, we will explore how to determine if all elements in a Java List are the same. The following are the ways to achieve this: Using a For Loop Using Stream API Using a For Loop We will iterate through the list and compare each element with the first element. If we find any element that is not equal to the first element, we will return false. If we reach the end of the list without finding any different element, we will return true. Example In the below ...
Read MoreHow do I remove multiple elements from a list in Java?
A List extends a collection that is used to store elements in a sequential manner. Let's learn how to remove multiple elements from a list in Java. The following are a few ways to do that: Using a for Loop Using removeAll() Method Using Stream API Using a For Loop To remove multiple elements from a list using a for loop. We will iterate through the list and check if each element is in the list of elements to be removed. If it is, we will remove ...
Read MoreHow do I set the size of a list in Java?
Java list size is dynamic. It increases automatically whenever you add an element to it, and this exceeds the initial capacity. You can define the initial capacity at the time of list creation so that it allocates memory after the initial capacity is exhausted. We can do this using the ArrayList Constructor and Collections.nCopies() method. In this article, we will explore both methods to set the size of a list in Java. Using ArrayList Constructor Using Collections.nCopies() Let's explore these methods in detail. Using ArrayList Constructor We can create an ...
Read MoreWhat is the best way to read an entire file into a std::string in C++?
To read an entire file into a std::string in C++, you can open the file using std::ifstream, read its contents using a std::stringstream or by moving the file pointer at the specified position, and then store the result in a std::string. Algorithm Here is a simple algorithm to read an entire file into a std::string in C++: Begin. Open the file using an ifstream object. Check if the file is successfully opened. Create an ostringstream object. Read the file content using rdbuf() and write it into the ostringstream. ...
Read MoreBuiltin functions of GCC compiler in C++
When you want to write a program in C++, your compiler (like GCC) converts your code into computer language. While doing this, GCC offers some special functions called built-in functions. The built-in functions are predefined functions by the compiler itself, but not provided by any standard library. The GCC compiler provides several built-in functions. Some of these functions are listed below: __builtin_popcount(x) __builtin_parity(x) __builtin_clz(x) __builtin_ctz(x) The __builtin_popcount(x) Function This builtin function is used to count the number of 1s in an integer ...
Read MoreJava Program to Iterate over ArrayList using Lambda Expression
The ArrayList class is a resizable array that can be found in java.util package. The difference between a built-in array and an ArrayList in Java is that the size of an array cannot be modified. Lambda Expression is a feature that was introduced in Java 8. It is useful when we use collections, such as ArrayList, Set, or Map, and we want to perform operations on the elements of these collections. In this article, we will learn how to iterate over an ArrayList using a lambda expression in Java. Iterating Over an ArrayList Using Lambda Expressions There are two main ...
Read MoreWide char and library functions in C++
Wide Characters Wide characters are similar to character datatype. The main difference is that char takes 1-byte space, but wide character takes 2-bytes (sometimes 4-byte depending on compiler) of space in memory. For 2-byte space wide character can hold 64K (65536) different characters. So the wide char can hold UNICODE characters. The UNICODE values are international standard which allows for encoding for characters virtually for any character of any language. Example 1: Size of a single wide character This program demonstrates how to declare a single wide character using wchar_t to print its value and memory size. #include using namespace ...
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