Input Output

Input Output

Beginner Problems Language Basics Easy

Complete the function printNumber which takes an integer input from the user and prints it on the screen.

Use:-

for C++ : cout << variable_name;
for Java : System.out.print();
for Python : print()
for Javascript : console.log()

Examples:

Input(user gives value): 7

Output: 7

Input(user gives value): -5

Output: -5

Input(user gives value): 0

Constraints

-1000 <= User Input <= 1000

Company Tags

TCS Cognizant Accenture Infosys Capgemini Wipro IBM HCL Tech Mahindra MindTree

Editorial

Approach:

The idea is to take an integer input from the user and print it on the screen. This task can be broken down into the following steps:

Receive Input: Capture the integer input from the user.
Print the Input: Output the captured integer to the screen.

Use an input function to get the user's input. Return the input integer as per requirement.

Solution:

#include <bits/stdc++.h>
using namespace std;

class Solution {
public:
    // Function to take input and display output 
    void printNumber() {
        int number;
        
        // Take input
        cin >> number;
        
        // Print output
        cout << number;
    }    
};

// Driver code
int main() {
    // Creating an instance of Solution class
    Solution sol;
    
    // Function call to take input and display output
    sol.printNumber();
    return 0;
}
import java.util.Scanner;

class Solution {
    // Function to take input and display output 
    public void printNumber(Scanner sc) {
        
        int number;
        
        // Take input
        number = sc.nextInt();
        
        // Print output
        System.out.print(number);
    }    
}

// Driver code
class Main {
    public static void main(String[] args) {
        // Creating an instance of Solution class
        Solution sol = new Solution();
        
        // Scanner class 
        Scanner sc = new Scanner(System.in);
        
        // Function call to take input and display output
        sol.printNumber(sc);
    }
}
class Solution:
    # Function to take input and display output 
    def printNumber(self):
        # Take input
        number = int(input())
        
        # Print output
        print(number)

# Driver code
if __name__ == "__main__":
    # Creating an instance of Solution class
    sol = Solution()
    
    # Function call to take input and display output
    sol.printNumber()
class Solution {
    // Function to take input and display output
    printNumber(value) {
        const n = value;
        console.log(n);
    }
}

// Input number
let n = 6678;

/* Creating an instance of 
Solution class */
let sol = new Solution();

// Function call to print the number
sol.printNumber(n);

Complexity Analysis:

Time Complexity: O(1), Because the operations of receiving input and printing output are executed once regardless of the size of the input.

Space Complexity: O(1), Using only a single variable to store the input and not using any additional space that grows with the input size.

Code

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