DEV Community: Aayushi Sharma

HackerRank 30 Days of Code Solution Day 5: Loops

Aayushi Sharma — Tue, 05 Sep 2023 16:42:14 +0000

In this tutorial, we will guide you through the process of solving the Day 5: Loops programming problem from HackerRank’s “ 30 Days of Code ” challenge. In this article, we will understand the use of loops in programming.

Disclaimer: We encourage you to solve this challenge yourself before reading our tutorial. We have provided a detailed explanation of the problem and our solutions to help you check your work.

Hackerrank 30 days of code - Day 5: Loops

It’s part of Hackerank’s 30 days of code. A series of 30-day programming challenges. Where you can learn new programming languages by solving the coding challenges.

Problem Statement and Explanation

In the problem statement, we will use loops to use some mathematics. Basically, we have to print the multiplication table of a given number in the following format: Suppose the given number is 5 then the output will be:

5 x 1 = 5
5 x 2 = 10
5 x 3 = 15
5 x 4 = 20
5 x 5 = 25
5 x 6 = 30
5 x 7 = 35
5 x 8 = 40
5 x 9 = 45
5 x 10 = 50

In this problem, we will use loops to print the multiplication table of a given number and use f string to print the output in the above format.

f string is a new feature in Python 3.6. It is used to format the string. We can use f string to print the output in the above format. We will use the following syntax to use the f string:

f"{variable_name} {variable_name}"

Operators Hackerrank solution in Python

Operators Hackerrank solution in JavaScript

Test Case of Loops Hackerrank Solution

Tested on the Hackerrank platform for the following test case and passed all the test cases. Enclosed below is the screenshot of the test case.

Problem statement is taken from Hackerrank, and the solutions are implemented by CodePerfectPlus team

HackerRank 30 Days of Code Solution Day 4: Class vs. Instance

Aayushi Sharma — Tue, 05 Sep 2023 07:02:02 +0000

In this tutorial, we will guide you through the process of solving the Day 4: Class Vs. Instance programming problem from HackerRank’s “ 30 Days of Code ” challenge.

We will provide comprehensive code solutions in C++, Python, and JavaScript programming languages. With our help, you will gain a better understanding of the problem and learn how to approach and solve similar coding challenges.

Disclaimer: We encourage you to solve this challenge yourself before reading our tutorial. We have provided a detailed explanation of the problem and our solutions to help you check your work.

Hackerrank 30 days of code - Day 4: Class vs. Instance

It’s part of Hackerank’s 30 days of code. A series of 30-day programming challenges. Where you can learn new programming languages by solving the coding challenges.

Problem Statement and Explanation

In this problem, we will learn the difference between class and instance using object-oriented programming. we will return the following string based on the following conditions:

If the age is 0 or less, we will print Age is not valid, setting age to 0. and set the age to 0.
There are 3 conditions to check the age:
- If the age is less than 13, we will print You are young.
- If the age is greater than or equal to 13 and less than 18, we will print You are a teenager.
- Otherwise, we will print You are old.
There will be two methods:
- amIOld() method to check if the person is old or not.
- yearPasses() method to increment the age of the person.

The Person class is provided in the editor. We have to write the following methods inside the class:

Operators Hackerrank solution in Python

Operators Hackerrank solution in JavaScript

Test Case of Class vs. Instance Hackerrank Solution

Tested on the Hackerrank platform for the following test case and passed all the test cases. Enclosed below is the screenshot of the test case.

Problem statement is taken from Hackerrank, and the solutions are implemented by CodePerfectPlus team

Day 3: Intro To Conditional Statments - 30 Days of Code HackerRank

Aayushi Sharma — Fri, 18 Aug 2023 06:30:45 +0000

Conditional Statements

Conditional statements are condition that allow to execute a block of code if certain conditions are meet. IF/Elif/Else are one type of conditional statement.

In this problem we will print Weird/Not Weird based on number provided by the user.

Task

Given an integer, , perform the following conditional actions:

If is odd, print Weird
If is even and in the inclusive range of 2 to 5, print Not Weird
If is even and in the inclusive range of 6 to 20, print Weird
If is even and greater than 20, print Not Weird

Conditional Statement Solution Hackerrank Solution In Python

if __name__ == "__main__":
    N = int(input())
    if N % 2 != 0:
        print("Weird")
    elif 2 < N < 5:
        print("Not Weird")
    elif 6 < N <= 20:
        print("Weird")
    elif N > 20:
        print("Not Weird")

Conditional Statement Solution Hackerrank Solution In JavaScript(Js)

function main() {
    const N = parseInt(readLine(), 10);
    if (N % 2 != 0) {
        console.log('Weird')
    } else if (N > 20) {
        console.log('Not Weird')
    } else if (N >= 6) {
        console.log('Weird')
    } else if (N >= 2) {
        console.log('Not Weird')
    }
}

Check out 30 Days of Code| CodePerfectplus for All solutions from this series.

5 Repository for Hacktoberfest-2020, You can contribute.

Aayushi Sharma — Fri, 18 Sep 2020 14:57:11 +0000

What is Hacktoberfest?

Hacktoberfest is a month-long celebration of open source software run by DigitalOcean in partnership with GitHub and Twilio.

Hacktoberfest is open to everyone in our global community!
Five quality pull requests must be submitted to public GitHub repositories.
You can sign up anytime between October 1 and October 31.

Below are some repository for contribute,if you are new to programming world.

For First Time Contributors

For Python Developers

Face Detection and Extraction using CNN

Aayushi Sharma — Fri, 11 Sep 2020 04:29:32 +0000

Face Detection is a easy task for computer now a days.In fact some ML model achieved state of art in computer vision.

We are using pretrained CNN model for face detection and extraction.

The project has two essential elements:

Box around faces: Show red boxes around all the faces recognised in the image. The Python file is faceDetectionCNN.py
Extracted faces: Extract faces from all images in a folder and save each face into a destination folder to create a handy dataset. The Python file is faceExtraction.py

def highlight_faces(image_path, faces):
  # display image
    image = plt.imread(image_path)
    plt.imshow(image)

    ax = plt.gca()

    # for each face, draw a rectangle based on coordinates
    for face in faces:
        x, y, width, height = face['box']
        face_border = Rectangle((x, y), width, height,
                          fill=False, color='red')
        ax.add_patch(face_border)
        plt.savefig('./media/face_detected.jpg')
    plt.show()

aayushi-droid / faceDetectionCNN

Face detection in Python using pretrained CNN model

Face Detection and Face Extraction

Face Detection and Extraction using pretrained CNN model.

Face Detection

Extracted Face

Installation

Download Anaconda

pip install keras
pip install mtcnn
pip install keras_vggface

Usage

def highlight_faces(image_path, faces):
  # display image
    image = plt.imread(image_path)
    plt.imshow(image)

    ax = plt.gca()

    # for each face, draw a rectangle based on coordinates
    for face in faces:
        x, y, width, height = face['box']
        face_border = Rectangle((x, y), width, height,
                          fill=False, color='red')
        ax.add_patch(face_border)
    plt.show()

Contributing

Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.

Please make sure to update tests as appropriate.

License

MIT

View on GitHub

Things you might want to clarify before accepting a Job offer.

Aayushi Sharma — Sat, 29 Aug 2020 18:17:51 +0000

Catalin Pit

@catalinmpit

Things you might want to clarify before accepting a job offer:

1) will they claim ownership if you release a side project or any product?
2) are you allowed to contribute to open source?
3) do they have clear progression path?
4) do they give you a mentor, if you're a junior?

09:16 AM - 29 Aug 2020

153 731

will they claim ownership if you release a side project or any product?
are you allowed to contribute to open source?
do they have clear progression path?
do they give you a mentor, if you're a junior?

Credit - Catalin Pit

Twitter Account -> @catalinmpit

As a programmer, which one book will you like to recommended to new Programmers.

Aayushi Sharma — Wed, 26 Aug 2020 10:25:52 +0000

Need advice to create e-commerce website and application with python and react

Aayushi Sharma — Fri, 21 Aug 2020 13:36:09 +0000

Hey follow Developers,

I want to create e-commerce website and application for a client. It will include all services including recommendation system.

I am quite good in Python, Django and some basic react.

I want to use Django rest framework in backend and React website frontend and react-native for mobile-application.

Is It a Good idea to create e-commerce app and website like this. or I should use flutter or something else. I want to use python only so I can use my machine learning models with Django.

Thanks for Your Suggestions.

Vim vs VsCode...

Aayushi Sharma — Mon, 17 Aug 2020 17:22:46 +0000

Which one will you prefer and Why?

Is Vim Better than VsCode? Afterall Microsoft investing a lot of money in VSCode.

What's your advice for new programmers ?

Aayushi Sharma — Sun, 09 Aug 2020 04:05:37 +0000

In you opinion which language is perfect for learning Data structures and Algorithms ?

Aayushi Sharma — Fri, 07 Aug 2020 07:57:37 +0000

Data structures and algorithms are most important part of developer's life. It's consider as a base or fundamental of CS.

In you opinion which language is perfect for learning Data structures and Algorithms ?

I will prefer C++ because

STL library.
Inbuilt data structure.
Faster execution speed.
Community Support for DSA In c++
OOP Concept

Share your reason to choose particular language?

Day 2: Operators - 30 Days of Code HackerRank

Aayushi Sharma — Mon, 27 Jul 2020 13:17:19 +0000

Task

Given the meal price (base cost of a meal), tip percent (the percentage of the meal price being added as tip), and tax percent (the percentage of the meal price being added as tax) for a meal, find and print the meal's total cost.

Operators hackerrank solution in c++(cpp)

#include <bits/stdc++.h>

using namespace std;

// Complete the solve function below.

void solve(double meal_cost, int tip_percent, int tax_percent) {

    int total_cost;
    total_cost =  meal_cost + meal_cost * tip_percent/100 + meal_cost * tax_percent/100;
    cout << total_cost <<endl;
}

int main()
{
    double meal_cost;
    cin >> meal_cost;
    cin.ignore(numeric_limits<streamsize>::max(), '\n');

    int tip_percent;
    cin >> tip_percent;
    cin.ignore(numeric_limits<streamsize>::max(), '\n');

    int tax_percent;
    cin >> tax_percent;
    cin.ignore(numeric_limits<streamsize>::max(), '\n');

    solve(meal_cost, tip_percent, tax_percent);

    return 0;
}

Operators hackerrank solution in Python

import math
import os
import random
import re
import sys

# Complete the solve function below.
def solve(meal_cost, tip_percent, tax_percent):

    total_cost =  meal_cost + meal_cost * tip_percent/100 + meal_cost * tax_percent/100
    print(round(total_cost))

if __name__ == '__main__':
    meal_cost = float(input())

    tip_percent = int(input())

    tax_percent = int(input())

    solve(meal_cost, tip_percent, tax_percent)

Operators hackerrank solution in JavaScript

// Complete the solve function below.
function solve(meal_cost, tip_percent, tax_percent) {

    let total_cost;
    total_cost =  meal_cost + meal_cost * tip_percent/100 + meal_cost * tax_percent/100;
    console.log(Math.round(total_cost));
}

function main() {
    const meal_cost = parseFloat(readLine());

    const tip_percent = parseInt(readLine(), 10);

    const tax_percent = parseInt(readLine(), 10);

    solve(meal_cost, tip_percent, tax_percent);
}

Problem Statement Link :

https://www.hackerrank.com/challenges/30-operators/problem

Check out 30 Days of Code| CodePerfectplus for All solutions from this series.