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Functions in C are widely used to simplify code and improve modularity. They allow repetitive tasks to be executed without rewriting code, making the program more efficient and easier to maintain. Functions help in organizing code logically by dividing it into smaller, manageable blocks. They are crucial for code reusability, enabling the same code to be used in multiple places. Additionally, functions aid in debugging and testing, as each function can be tested independently.For more details, check out the full article <a href="https://www.geeksforgeeks.org/c-functions/?ref=lbp">here</a>.

C Applications of Functions

Welcome to our tutorial on mastering pointers in C! Whether you're new to C programming or seeking to reinforce your knowledge, this tutorial is tailored to provide you with a comprehensive understanding of pointers and their usage in C.In this tutorial, we'll delve into the concept of pointers, elucidating their significance in C programming and their role in memory manipulation. Pointers are powerful variables that store memory addresses, allowing for dynamic memory allocation and efficient memory management.Join us as we unravel the intricacies of pointers in C, discussing pointer arithmetic, pointer dereferencing, and pointer manipulation. We'll explore how pointers are used to create data structures such as arrays, strings, and linked lists, and how they facilitate interprocess communication and dynamic memory allocation.Ready to elevate your C programming skills and master the use of pointers? Watch the tutorial now and gain valuable insights into this essential aspect of C programming! For further exploration and detailed insights, don't forget to peruse the accompanying article on GeeksforGeeks: <a href="https://www.geeksforgeeks.org/c-pointers/">https://www.geeksforgeeks.org/c-pointers/</a>Don't miss out on the opportunity to deepen your understanding of C programming and unlock the full potential of pointers. Like, share, and subscribe for more tutorials and insights into C programming best practices. Let's embark on this enlightening journey together. Happy coding in C!

Introduction to Pointers in C

Welcome to our comprehensive guide on learning C programming! In this video, we delve into the fundamentals of C, one of the most widely used and influential programming languages in the world. Whether you're a beginner eager to embark on your coding journey or an experienced programmer looking to expand your skills, this video is for you.We start by covering the origins and importance of C, exploring its rich history and enduring relevance in various domains such as system programming, embedded systems, and application development. Then, we dive into the basics, discussing key concepts like variables, data types, operators, and control structures, providing clear explanations and illustrative examples along the way.As we progress, you'll gain a solid understanding of C syntax and semantics, laying a strong foundation for tackling more advanced topics. We'll also explore functions, arrays, pointers, and memory management, essential aspects of C programming that empower you to write efficient and robust code.Whether you aspire to become a software engineer, pursue academic research, or simply hone your problem-solving skills, mastering C programming is a valuable asset. Join us on this educational journey as we unlock the power and versatility of the C language.Ready to start coding? Watch the video now and begin your exploration of C programming! And for additional reading, check out the accompanying article on GeeksforGeeks: <a href="https://www.geeksforgeeks.org/c-language-introduction/">https://www.geeksforgeeks.org/c-language-introduction/</a>Don't forget to like, share, and subscribe for more programming tutorials and tips! Happy coding!

Introduction to C Language | Sample Video for C Course

In this video, we will see how to write a C Program to Trim Trailing White Spaces from String.Method: The idea is to count the trailing spaces in the given string and then from that count index copy the characters from that index to the rear of the string. &nbsp; Examples : Input: str = ”geeksforgeeks &nbsp; &nbsp; &nbsp; &nbsp; ” Output: geeksforgeeksAlgorithm:Step 1: Initialize the lastIndex variable with 0 and variable i with 0. Step 2: Iterate through the given string and find the last non-whitespace character. Step 3: Run a While loop till the last character of the given string and if the current character is non-whitespace char do&nbsp; lastIndex = currentIndex to get the last non-whitespace character. Step 4: Now, from the first character till the last non-whitespace character copy the string into a new string. Step 5: Finally, put ‘\0’ at the last index of the new string to terminate the string. Step 6: Print output.&nbsp;

C Program to Trim Trailing White Spaces from String

In this video, will write a C Program to Trim Leading White Spaces from String.Strings are defined as an array of characters. A string is that the string is terminated with a special character ‘\0’ and whitespace is a term that refers to characters that are used for formatting purposes.Examples : Input: str = ” geeksforgeeks” Output: geeksforgeeksMethod: The idea is to count the leading spaces in the given string and then from that count index copy the characters from that index to the front of the string. Algorithm:Step 1: Initialize count = 0 to count the number of leading spaces. Step 2: Iterate through the given string and find the index (say idx) at which the leading space character ends. Step 3: Iterate through all the characters from that index idx and copy each character from this index to the end to the front index. Step 4: Finally, put ‘\0’ at the last index of the new string to terminate the string. Step 5: Print output.So the Time and Space complexity of this method is as follows: Time Complexity: O(N) Auxiliary Space: O(N) C Program to trim leading white spaces from string:&nbsp; <a href="https://www.geeksforgeeks.org/c-program-to-trim-leading-white-spaces-from-string/">https://www.geeksforgeeks.org/c-program-to-trim-leading-white-spaces-from-string/</a>

C Program to Trim Leading White Spaces from String

In this video, we will see a C program to Add &amp; Subtract a Complex Number.&nbsp; Method to add the complex numbers: 1. The addition of two complex numbers is done by adding the real part of the first complex number with the real part of the second complex number, and adding imaginary part of the first complex number with the second which results into the third complex number. Points to remember while subtracting 2 complex numbers: 1. Subtracting complex numbers is simply combining the real and imaginary parts of the complex numbers and applying the subtraction operation separately on each of the combinations. 2. All real numbers are complex numbers with imaginary parts equal to zero, but all complex numbers are not real numbers. 3. If the complex numbers are in polar form, we first convert them into Cartesian form and apply the operations. So, two complex numbers z1 = a + ib and z2 = c + id can be add/subtracted by combining the real and imaginary parts of both the complex numbers and applying the subtraction operation separately to each of them.

C Program to Add & Subtract Two Complex Numbers

In this video, we will see how to find Area &amp; Perimeter of Rectangle in C Language. Formulae to find Area and Perimeter of Rectangle 1) Area of rectangle l * b 2) The perimeter of rectangle 2*(l+b) For examples: Input: l=3, b=4 Output: Area = 12 Perimeter = 14 Input: l=3, b=7 Output: Area = 21 Perimeter = 2 Here, we calculate the Area &amp; Perimeter of the Rectangle using simple math formula. Apart from that, we will see the time and space complexity of this approach.C Program for Area And Perimeter Of Rectangle : <a href="https://www.geeksforgeeks.org/c-program-to-find-area-and-perimeter-of-rectangle/">https://www.geeksforgeeks.org/c-program-to-find-area-and-perimeter-of-rectangle/</a>

C Program for Area And Perimeter Of Rectangle

In this video, we will learn how to Concatenate Two Strings in C. Examples: Input String 1: GEEKSFOR Input String 2: GEEKS Output String: GEEKSFORGEEKS Input String 1: HELLO Input String 2: WORLD!! Output: HELLO WORLD!! Here we see different methods for string concatenation: 1. Using while loop 2. Using strcat() Using while loop: Here we use a while loop that concatenates two strings by repeatedly copying the first string to the end of the second. The first string is terminated by a NULL character.&nbsp; Using strcat(): In C, strcat() is a predefined function used for string handling, under the string library (string.h in C). It appends the string pointed to by the source to the end of the string pointed to by the destination. It will append a copy of the source string in the destination string plus a terminating Null character.&nbsp; The initial character of the string(src) overwrites the Null-character present at the end of the string(dest). C Program to Concatenate two strings: <a href="https://www.geeksforgeeks.org/c-program-to-concatenate-two-strings-without-using-strcat/">https://www.geeksforgeeks.org/c-program-to-concatenate-two-strings-without-using-strcat/</a>

C Program to Concatenate Two Strings

In this video, we will see a C Program to Multiply two Floating-Point Numbers. But before that, let us see what is a floating-point number?&nbsp; A floating-point number can be defined as a positive or negative whole number with a decimal point/value.Examples Input A = 5.12, B = 8.90 Output = 45.568Input A = 7.86 B = 2.89 Output = 22.7154Floating-point figures get their name from the way the decimal point can "float" to any position necessary.Algorithm: Step 1 - Take input of two floating-point numbers. Step 2 - Multiply both the numbers and store them in another float variable. Step 3 - Print that variable. Step 4 - Stop the program.Apart from that time and space complexity for generating a multiply of two floating-point numbers are also covered in this video.C Program to Multiply two floating-point numbers: <a href="https://www.geeksforgeeks.org/c-program-to-multiply-two-floating-point-numbers/">https://www.geeksforgeeks.org/c-program-to-multiply-two-floating-point-numbers/</a>

C Program to Multiply Two Floating Point Numbers

In this video, we will see a C Program to Calculate the Power of a Number.To calculate the power of a number we use four different methods:1. Using while loop 2. Using In-built pow() functionUsing While loop: In the first approach, we will calculate the power using the While loop.Using In-built function [pow()] of C: Given two numbers base and exponent, pow() function finds x raised to the power of y is a function to get the power of a number, but we have to use math.h header file, then two numbers are passed.Syntax: pow(base,exponent);Pow() parameters: - Base: the base value - Exponent: exponent of the baseExample: pow(4, 2); Then we will get the result as 4^2, which is 16.Input : x = 2, n = 5 Output : 32 Input : x = 6, n = 2 Output : 36Apart from that, we will see the Time and Space complexity of these approaches.C program to calculate power of a number: <a href="https://www.geeksforgeeks.org/write-a-c-program-to-calculate-powxn/">https://www.geeksforgeeks.org/write-a-c-program-to-calculate-powxn/</a>

C Program to Calculate the Power of a Number

In this video, we will see how to C program to find the roots of a quadratic equation. In mathematics, the roots of a quadratic equation are solutions to the equation that lie on or close to the real axis. These solutions can be found by solving for x using rational calculus and graphing these points. The most common method of finding roots is by linearly approximating them with square root or cube root functions, though there are other methods as well.A quadratic equation in variable “x” is an equation of the form,&nbsp; ax2 + bx + c = 0 Where, a, b, and c are real numbers and constants, and a ≠ 0. The “roots” of the quadratic are the numbers that satisfy the quadratic equation.There are always two roots for any quadratic equation, although sometimes they may coincide.Depending on the value of a the nature of roots will change. 1.If a = 0, then the roots will be equal and real. 2. If a &gt; 0, then the roots will be real and distinct. 3.If a &lt; 0, then the roots will be imaginary.If α and β are the roots of the equation, then Sum of roots = -b/a and Product of roots = c/a.Program to find the roots of quadratic equation: <a href="https://www.geeksforgeeks.org/program-to-find-the-roots-of-quadratic-equation/">https://www.geeksforgeeks.org/program-to-find-the-roots-of-quadratic-equation/</a>

C Program to Find Roots of a Quadratic Equation

In this video, we will see C Program to Check Whether a given number is Prime or not. We know that “A prime number is a number that can only be divided by itself and 1 without remainders”. There are some examples of prime numbers from 1 to 100. [2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97]Here we use Sqrt of N .The reason is that the smallest and greater than one factor of a number cannot be more than the sqrt of N. And we stop as soon as we find a factor.Some interesting facts about prime numbers:1. Two is the only even Prime number. 2. Every prime number can be represented in form of 6n+1 or 6n-1 except the prime number 2 and 3, where n is a natural number. 3. Two and Three are only two consecutive natural numbers that are prime.Algorithm to print a prime numbers: Step 1: First, take the numbers from user. Step 2: Then use a IF-ELSE condition to check a number is a prime or not. Step 3: If it is a prime number, print it.Time Complexity: O(n1/2) Auxiliary Space: O(1)Program to Check whether a number is prime or not: <a href="https://www.geeksforgeeks.org/c-program-to-check-whether-a-number-is-prime-or-not/">https://www.geeksforgeeks.org/c-program-to-check-whether-a-number-is-prime-or-not/</a>

C Program to Check Whether a Number is Prime or not

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