Programming Articles - Page 1100 of 3363

When it is required to filter rows with a specific pair sum, a method is defined. It checks to see if elements in a specific index is equal to key, and returns output based on this.Below is a demonstration of the same −Example Live Demodef find_sum_pair(val, key):    for index in range(len(val)):       for ix in range(index + 1, len(val)):          if val[index] + val[ix] == key:             return True    return False my_list = [[71, 5, 21, 6], [34, 21, 2, 71], [21, 2, 34, 5], [6, 9, ... Read More

In C programming language, generally, the special symbols have some special meaning. This language provides low-level access to the memory and it is identified for its performance and efficiency. The C language includes a character set of English alphabets(a-z, A-Z), digits(0-9), and specific meaning with special characters. Some special characters are operators, while combinations like "" are escape sequence. In C symbols are used to perform special operations. Some of the special symbols that are used in C programming are as follows − [] () {}, ; * = # Common Characters in C Programming Let’s understand their definitions, which ... Read More

Binary numbers are represented in 1’s and 0’s. It can also be referred to as a rational number with a finite representation in the system. This is a quotient of an integer by a power of two. Hexadecimal number system with 16 digits is {0, 1, 2, 3…..9, A(10), B(11), ……F(15)}. In base 16 transfer encoding, each byte of plain text is divided into two 4-bit values, which are represented by two hexadecimal digits. Converting Binary to Hex using C To convert from binary to hexadecimal representation, the bit string is grouped into 4-bit blocks, called nibbles, starting from the ... Read More

Datatype is the declaration of memory location or variable. Data can be of different types and some of the examples of data types in C language are as follows −Integers, rational numbers, whole numbers, real numbers, complex numbers, vectors, characters etc.Coming to the machine hardware, the data is everything encoded as a string of binary digits 0 and 1 of finite length. In the machines, the integer data is processed in the arithmetic logic unit (ALU) and fractional data is processed in the floating-point unit (FPU). This gets reflected in the built-in or primitive data types of a high-level language.Built-in ... Read More

Computer is an electronic device which can used to store data and to perform operations, based on the size of computer, the computer may be divided into four types they are −Micro-computer (small)Mini-computer (medium)Mainframe computer (large)Supercomputer (very large)Micro-computerThe CPU used in micro-computer is microprocessor, it originated in the late 1970’s. The first micro-computer is around 8-bit microprocessor chips.The chip with 8-bit can retrieve data/instruction from storage, process and manipulate at a time. The cost of micro-computers is economical and are friendly in use. Personal com­puters (PCs) can fall into this category.Mini-computerIt originated in the 1960’s. Initially the mini-computers were 8 ... Read More

Linked lists use dynamic memory allocation and are collection of nodes.Nodes have two parts which are data and link.Types of Linked ListsThe types of linked lists in C programming language are as follows −Single / Singly linked lists.Double / Doubly linked lists.Circular single linked list.Circular double linked list.Double linked listThe diagram given below depicts the representation of double linked list.ExampleFollowing is the C program to insert a node at any position using double linked list − Live Demo#include #include struct node {    int num;    struct node * preptr;    struct node * nextptr; }*stnode, *ennode; void DlListcreation(int ... Read More

Linked lists use dynamic memory allocation and are collection of nodes.Nodes have two parts which are data and link.Types of Linked ListsThe types of linked lists in C programming language are as follows −Single / Singly linked listsDouble / Doubly linked listsCircular single linked listCircular double linked listSingle linked listThe diagram given below depicts the representation of single linked list.ExampleFollowing is the C program to display the numbers in reverse order by using the single linked list − Live Demo#include #include struct node {    int num;    struct node *nextptr; }*stnode; void createNodeList(int n); void reverseDispList(); void displayList(); ... Read More

In order to find the trailing zero in a given factorial, let us consider three examples as explained below −Example 1Input − 4Output − 0Explanation − 4! = 24, no trailing zero.Factorial 4! = 4 x 3 x 2x 1 = 24. No trailing zero i.e. at 0’s place 4 number is there.Example 2Input − 6Output − 1Explanation − 6! = 720, one trailing zero.Factorial 6! = 6 x 5 x 4 x 3 x 2 x 1 = 720, one trailing zero, because at 0’s place 0 number is there.Example 3The input is as follows −n = 4 n ... Read More

ProblemA program to print Excel column title that corresponds to a given column number (integer value). User has to enter the integer number based on given number it has to print excel column number.SolutionThe solution to print Excel column title that corresponds to a given column number in C programming language is explained below −Example 1Let us see an example.1 -> A 2 -> B ... 26 -> Z 27 -> AA 28 -> AB ...Example 2The input is as follows −number = 3 number = 27 number = 151The output is as follows −Excel column title: C Excel column ... Read More

ProblemFind the fraction part from two given integers given by user at run time by using the dynamic memory allocation and represent the numerator and denominator in string format.SolutionThe solution to represent the numerator and denominator in string format is as follows −Example -The input is given below −Numerator1 = 3 Denominator2 = 2 numerator2 = 4 denominator2 = 7The output is as follows −Fractional part1: 1.5 Fractional part2: 0.(571428)ExampleFollowing is the C program to represent the numerator and denominator in string format −#include #include #include #include char* fractionToDecimal(int numerator, int denominator) {    char ... Read More