🎮 Math Speed Drill & Even-Odd Identifier Challenge

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🎮 Project 1: Math Speed Drill

📁 Project Overview

Property Details
Project Name Math Speed Drill Game
Language C++
Difficulty Level Beginner
Main Concepts Loops, Random Numbers, Time Calculation
Game Type Timed Challenge
Target User Students improving mental math speed

🎯 Objective

To challenge users with simple math problems (addition/subtraction) and measure how quickly they answer 5 of them.

📄 Features

  • 5 random math questions.

  • Measures total time taken to answer.

  • Reports time and score at the end.

  • Encourages fast, accurate thinking.

🔧 Tools Required

  • C++ compiler

  • Timer support via <chrono>

  • IDE (Code::Blocks / VS Code) or terminal

💻 Source Code

#include <iostream>
#include <cstdlib>
#include <ctime>
#include <chrono>

using namespace std;
using namespace std::chrono;

int main() {
    srand(time(0));
    int correct = 0;

    cout << "🧠 Welcome to Math Speed Drill!\n";
    cout << "You will be given 5 simple addition or subtraction problems.\n";
    cout << "Try to answer them as fast and correctly as you can!\n\n";

    auto start = high_resolution_clock::now(); // Start timer

    for (int i = 1; i <= 5; ++i) {
        int a = rand() % 50 + 1;
        int b = rand() % 50 + 1;
        int operation = rand() % 2; // 0 for +, 1 for -
        int answer, user;

        if (operation == 0) {
            answer = a + b;
            cout << "Q" << i << ": " << a << " + " << b << " = ";
        } else {
            answer = a - b;
            cout << "Q" << i << ": " << a << " - " << b << " = ";
        }

        cin >> user;

        if (user == answer) {
            cout << "✅ Correct!\n";
            correct++;
        } else {
            cout << "❌ Wrong. Correct answer is: " << answer << "\n";
        }
    }

    auto stop = high_resolution_clock::now(); // Stop timer
    auto duration = duration_cast<seconds>(stop - start);

    cout << "\n⏱️ Total Time: " << duration.count() << " seconds\n";
    cout << "🏁 Final Score: " << correct << "/5\n";

    return 0;
}

🧠 Learning Concepts

  • chrono for measuring time.

  • Use of randomization and conditionals.

  • Beginner-level problem-solving practice.

🎯 Sample Output

🧠 Welcome to Math Speed Drill!
Q1: 14 + 27 = 41
✅ Correct!
Q2: 35 - 19 = 16
✅ Correct!
...
⏱️ Total Time: 21 seconds
🏁 Final Score: 4/5

🎮 Project 2: Even-Odd Identifier Challenge

📁 Project Overview

Property Details
Project Name Even-Odd Identifier Game
Language C++
Difficulty Level Beginner
Main Concepts Loops, Modulo Operator, Scorekeeping
Game Type Classification (Math logic)
Target User Kids learning even and odd numbers

🎯 Objective

This game tests how quickly and accurately a user can identify whether a number is even or odd. Great for early learners or warm-up logic drills.

📄 Features

  • 10 random numbers shown.

  • User must type "even" or "odd".

  • Game checks answers and gives final score.

  • Simple, intuitive logic-building.

💻 Source Code

#include <iostream>
#include <cstdlib>
#include <ctime>
#include <string>
#include <algorithm>

using namespace std;

int main() {
    srand(time(0));
    int score = 0;

    cout << "🔢 Welcome to the Even-Odd Identifier Game!\n";
    cout << "You will be shown 10 random numbers.\n";
    cout << "Type 'even' or 'odd' based on the number shown.\n\n";

    for (int i = 1; i <= 10; ++i) {
        int number = rand() % 100 + 1;
        string answer;

        cout << "Q" << i << ": " << number << " is (even/odd)? ";
        cin >> answer;

        // Convert input to lowercase
        transform(answer.begin(), answer.end(), answer.begin(), ::tolower);

        bool isEven = number % 2 == 0;

        if ((isEven && answer == "even") || (!isEven && answer == "odd")) {
            cout << "✅ Correct!\n";
            score++;
        } else {
            cout << "❌ Wrong. It is actually " << (isEven ? "even" : "odd") << ".\n";
        }
    }

    cout << "\n🏁 Game Over. You got " << score << " out of 10 correct.\n";

    return 0;
}

🧠 Learning Concepts

  • Using modulo (%) to check even/odd.

  • string manipulation (transform to lowercase).

  • Simple conditional logic.

✅ Sample Output

Q1: 33 is (even/odd)? odd
✅ Correct!
Q2: 70 is (even/odd)? odd
❌ Wrong. It is actually even.
...
🏁 Game Over. You got 8 out of 10 correct.

🧠 Takeaways for Beginners

  • Practice with simple logic-based conditions.

  • Intro to string, transform, and modulo.

  • Builds fast decision-making for math skills.

📦 Compilation Instructions

To compile and run either game:

g++ speed_drill.cpp -o speed
./speed

g++ even_odd_game.cpp -o evenodd
./evenodd