TCS Coding Practice Question | Average of 2 Numbers

Last Updated : 16 Feb, 2023

Given two numbers, the task is to find the average of two numbers using Command Line Arguments. Examples:

Input: n1 = 10, n2 = 20
Output: 15

Input: n1 = 100, n2 = 200
Output: 150

Approach:

Since the numbers are entered as Command line Arguments, there is no need for a dedicated input line
Extract the input numbers from the command line argument
This extracted numbers will be in String type.
Convert these numbers into integer type and store it in variables, say num1 and num2
Find the average of the numbers using the formula ((num1 + num2)/2)
Print or return the average

Program:

C

// C program to compute the average of two numbers 
// using command line arguments 
  
#include <stdio.h> 
#include <stdlib.h> /* atoi */ 
  
// Function to compute the average of two numbers 
int average(int a, int b) 
{ 
    return (a + b) / 2; 
} 
  
// Driver code 
int main(int argc, char* argv[]) 
{ 
  
    int num1, num2; 
  
    // Check if the length of args array is 1 
    if (argc == 1) 
        printf("No command line arguments found.\n"); 
  
    else { 
  
        // Get the command line argument and 
        // Convert it from string type to integer type 
        // using function "atoi( argument)" 
        num1 = atoi(argv[1]); 
        num2 = atoi(argv[2]); 
  
        // Find the average and print it 
        printf("%d\n", average(num1, num2)); 
    } 
    return 0; 
} 

Java

// Java program to compute the average of two numbers 
// using command line arguments 
  
class GFG { 
  
    // Function to compute the average of two numbers 
    static int average(int a, int b) 
    { 
        return (a + b) / 2; 
    } 
  
    // Driver code 
    public static void main(String[] args) 
    { 
  
        // Check if length of args array is 
        // greater than 0 
        if (args.length > 0) { 
  
            // Get the command line argument and 
            // Convert it from string type to integer type 
            int num1 = Integer.parseInt(args[0]); 
            int num2 = Integer.parseInt(args[1]); 
  
            // Find the average 
            int res = average(num1, num2); 
  
            // Print the average 
            System.out.println(res); 
        } 
        else
            System.out.println("No command line "
                               + "arguments found."); 
    } 
} 

Python

# python program to find average of two numbers 
def average(n1,n2): 
    return(int((n1+n2)/2)) 
      
# taking user input 
n1,n2=input().split() 
# Convert it from string type to integer type 
n1=int(n1) 
n2=int(n2) 
#find the average  
result=(average((n1),(n2))) 
# print average 
print(result)