Functions

--- (a) Difference Between Library Function and User Defined Function As per the course notes, C programs have two types of functions: Library Functions and User Defined Functions. S.N. Library Function User Defined Function --------------------------------...

A recursive function is a function that calls itself during its own execution. Each recursive call works on a smaller version of the problem until a base condition (terminating condition) is reached, which stops further recursion. --- Component Description ...

A recursive function is a function that calls itself. It must have: 1. Base condition (stopping condition) -- when n == 0, return 1 2. Recursive call -- each call must move closer to the base condition $$n! = \begin{cases} 1 & \text{if } n = 0 \\ n \times (...

The sum of digits of a number can be found recursively by: - Base case: If the number is 0, return 0 - Recursive case: Return (number % 10) + sumOfDigits(number / 10) For example, for n = 123: - 123 % 10 = 3, then call sumOfDigits(12) - 12 % 10 = 2, then ca...

--- Definition: Global variables are variables that are defined outside any function in a C program. Since they are declared outside all functions, they are accessible and can be modified by all functions in the program. Key Characteristics: - Declared outs...

--- Variables that are defined within the body of a function or a block are called local variables. Key characteristics: - Can be used only within the function or block in which they are declared - They are not accessible outside that function/block - The s...

--- (a) Definitions A structure is a user-defined data type in C that allows grouping of variables of different data types under a single name. Each variable inside a structure is called a member or field. Syntax: Example: --- A nested structure is a struct...

The first 10 even numbers are: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20. A separate function evenSum() is defined to compute and return their sum, which is then called from main(). --- --- Iteration i sum (before) sum (after) count -------------------------------...

A user-defined function is a function created by the programmer to perform a specific task. Here, we define a separate function sum() that takes two numbers as parameters, adds them, and returns the result to main(). --- --- --- Part Description ------ int ...

A user-defined function is a function created by the programmer to perform a specific task. Here, we create a separate function called product() that takes two integers as parameters and returns their product. --- --- --- Part Description ------ int product...

A function is a self-contained, named block of code that performs a specific task. It is written once and can be called (invoked) multiple times from anywhere in the program. General Syntax: Example: A C program must have at least one function: int main(), ...

int main() {
    int a, b, c
    scanf("%d%d%d, &a, &b, &c);
    sum(a, b, c);
    return -1;
}

void sum(int x, int y, int z) {
    int sum;
    sum = a + b + c;
    return sum;
}

--- The break statement is used to immediately exit from a loop (for, while, do-while) or a switch statement before its normal termination condition is reached. Without break, a loop would continue executing even when a desired condition has been met, wasti...