If Else Adult Teen Problem

Beginner Problems Language Basics Easy Go Ad-Free - ₹20/mo

Given an integer age, print on the screen:

Adult if age >= 18
Teen if age < 18

Do not change the case of any letter in "Adult" and "Teen" while printing the answer.

For printing use:-

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

Examples:

Input: age = 19

Output: Adult

Explanation: age is greater than or equal to 18.

Input: age = 7

Output: Teen

Explanation: age is less than 18.

Input: age = 18

Constraints

0 <= age <= 100

Company Tags

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Editorial

Approach:

Receive Input: Capture the integer input age from the user.

If age is greater than or equal to 18, print "Adult".

Otherwise, print "Teen".

Solution:

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

class Solution {
public:

    /* Function to check if the person
    in an adult or a teen */
    void isAdult(int age) {
        
       // If age is greater than 18
        if (age >= 18) {
            // The person is an adult
            cout << "Adult";
        } 
        
        // Otherwise
        else {
            // The person is a teen
            cout << "Teen";
        }
    }
};

int main() {
    // Creating an instance of Solution class
    Solution solution;

    //Take age as input
    int age;
    cout << "Enter your age: ";
    cin >> age;

    /* Function call to check if the person
    in an adult or a teen */
    solution.isAdult(age);
    return 0;
}
import java.util.Scanner;

class Solution {
    /* Function to check if the person
    is an adult or a teen */
    public void isAdult(int age) {
        
        // If age is greater than or equal to 18
        if (age >= 18) {
            // The person is an adult
            System.out.print("Adult");
        } 
        
        // Otherwise
        else {
            // The person is a teen
            System.out.print("Teen");
        }
    }
}

class Main {
    public static void main(String[] args) {
        // Creating an instance of Solution class
        Solution solution = new Solution();

        // Take age as input
        Scanner sc = new Scanner(System.in);
        System.out.print("Enter your age: ");
        int age = sc.nextInt();

        /* Function call to check if the person
        is an adult or a teen */
        solution.isAdult(age);
    }
}
class Solution:
    ''' Function to check if the person
    is an adult or a teen '''
    def isAdult(self, age):
        
        # If age is greater than or equal to 18
        if age >= 18:
            # The person is an adult
            print("Adult")
        
        # Otherwise
        else:
            # The person is a teen
            print("Teen")

if __name__ == "__main__":
    # Creating an instance of Solution class
    solution = Solution()

    # Take age as input
    age = int(input("Enter your age: "))

    ''' Function call to check if the person
    is an adult or a teen '''
    solution.isAdult(age)
class Solution {
    /* Function to check if the person
    is an adult or a teen */
    isAdult(age) {
        
        // If age is greater than or equal to 18
        if (age >= 18) {
            // The person is an adult
            console.log("Adult");
        } 
        
        // Otherwise
        else {
            // The person is a teen
            console.log("Teen");
        }
    }
}

const readline = require('readline').createInterface({
    input: process.stdin,
    output: process.stdout
});

// Creating an instance of Solution class
const solution = new Solution();

// Take age as input
readline.question('Enter your age: ', age => {
    /* Function call to check if the person
    is an adult or a teen */
    solution.isAdult(parseInt(age));
    readline.close();
});

Complexity Analysis:

Time Complexity: O(1), 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 age, and no other additional space is used that grows with the input size.

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