Write a function to find the largest of three numbers. -

#include <iostream>

using namespace std;

// Function to find the largest of three numbers

int largest(int num1, int num2, int num3) {

// Assume the first number is the largest initially

int largest_num = num1;

// Compare with the second number

if (num2 > largest_num) {

largest_num = num2; // Update if num2 is larger

}

// Compare with the third number

if (num3 > largest_num) {

largest_num = num3; // Update if num3 is larger

}

// Return the largest number found

return largest_num;

}

int main() {

// Declare variables with Indian names

int Ram_score = 85, Sita_score = 92, Ramesh_score = 88;

// Find the largest score using the function

int highest_score = largest(Ram_score, Sita_score, Ramesh_score);

cout << “The highest score among Ram, Sita, and Ramesh is: ” << highest_score << endl;

return 0;

}

Output:

The highest score among Ram, Sita, and Ramesh is: 92

1. Header and Namespace:

#include <iostream>: Includes the iostream header for input/output operations.
using namespace std;: Brings the std namespace into scope for convenient use of elements like cin, cout, and endl.

2. Largest Function:

int largest(int num1, int num2, int num3): Declares a function named largest that takes three integer arguments and returns an integer (the largest number).
int largest_num = num1;: Assumes num1 is the largest initially and stores it in largest_num.
if (num2 > largest_num) { … }: Compares num2 with largest_num. If num2 is larger, updates largest_num with num2.
if (num3 > largest_num) { … }: Similarly, compares num3 with largest_num and updates if num3 is larger.
return largest_num;: Returns the final value of largest_num, which holds the largest number found.

3. Main Function:

int main(): The main function where program execution begins.
int Ram_score = 85, Sita_score = 92, Ramesh_score = 88;: Declares and initializes three integer variables with names.
int highest_score = largest(Ram_score, Sita_score, Ramesh_score);: Calls the largest function, passing the three scores as arguments, and stores the returned largest value in highest_score.
cout << “The highest score…”;: Prints the highest score to the console.
return 0;: Indicates successful program termination.