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simple-math.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Simple Math Challenge | HashVault</title>
<script src="https://cdn.tailwindcss.com"></script>
<link rel="favicon" href="favicon.ico" type="image/x-icon">
<link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0-beta3/css/all.min.css" rel="stylesheet">
<style>
@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;700&family=VT323&display=swap');
body {
font-family: 'Orbitron', sans-serif;
background-color: #0a0a0a;
color: #e0e0e0;
margin: 0;
padding: 0;
min-height: 100vh;
display: flex;
flex-direction: column;
}
.terminal-text {
font-family: 'VT323', monospace;
color: #48bb78;
}
.challenge-container {
max-width: 800px;
margin: 0 auto;
padding: 20px;
}
.challenge-card {
background-color: rgba(31, 41, 55, 0.8);
border-radius: 16px;
border: 1px solid rgba(79, 70, 229, 0.3);
padding: 30px;
backdrop-filter: blur(10px);
}
.glitch-text {
animation: glitch 1s infinite;
}
@keyframes glitch {
2%, 64% { transform: translate(2px, 0) skew(0deg); }
4%, 60% { transform: translate(-2px, 0) skew(0deg); }
62% { transform: translate(0, 0) skew(5deg); }
}
</style>
</head>
<body class="bg-black">
<div class="container mx-auto px-4 py-10">
<div class="text-center mb-10">
<h1 class="text-3xl sm:text-4xl font-bold text-white glitch-text">
Simple <span class="text-green-400">Math</span>
</h1>
<p class="mt-4 text-gray-300">Precise Number Combination</p>
</div>
<div class="challenge-container">
<div class="challenge-card">
<h2 class="text-2xl font-bold text-green-400 mb-6">Challenge Description</h2>
<p class="text-gray-200 mb-6">
Combine two numbers to achieve a precise sum. Their total should exactly equal Todays Date i.e in this case 30.
</p>
<div class="challenge-inputs space-y-4 mb-6">
<div>
<label class="block text-sm font-medium text-gray-300 mb-2">First Number (<=20)</label>
<input type="number" id="first-input" min="0" max="14" class="w-full bg-gray-700 border border-gray-600 text-white p-2 rounded" placeholder="Enter first number">
</div>
<div>
<label class="block text-sm font-medium text-gray-300 mb-2">Second Number (<10)</label>
<input type="text" id="second-input" class="w-full bg-gray-700 border border-gray-600 text-white p-2 rounded" placeholder="Enter second number">
</div>
</div>
<button id="submit-btn" class="w-full bg-green-600 hover:bg-green-700 text-white font-bold py-2 px-4 rounded transition duration-300">
Check Sum
</button>
<div id="result" class="mt-6 text-center"></div>
<div class="challenge-input mb-6 mt-10">
<div style="background-color: #1a202c; border: 1px solid #4a5568; color: #e0e0e0; padding: 16px; border-radius: 8px; margin-top: 10px;">
<span style="font-weight: bold; color: #48bb78; display: block; margin-bottom: 8px;">Flag Format:</span>
<span>HVFLAG{TH1S_IS_4_FL4G}</span>
</div>
</div>
<div id="flag-container" class="hidden mt-6">
<div class="terminal-text bg-green-900 p-4 rounded-lg">
<code id="flag-text">FLAG{S4FE_M4TH_C0MPL3TED}</code>
</div>
</div>
</div>
</div>
</div>
<script>
// Function to check if the sum of the two numbers is correct
document.getElementById('submit-btn').addEventListener('click', function() {
const firstInput = document.getElementById('first-input').value;
const secondInput = document.getElementById('second-input').value;
const resultElement = document.getElementById('result');
const flagContainer = document.getElementById('flag-container');
const firstNumber = parseInt(firstInput, 10);
let secondNumber;
// Validate the first input
if (isNaN(firstNumber) || firstNumber > 20) { // Allow only numbers less than 15
resultElement.textContent = "Please enter a valid first number (less than 21).";
resultElement.classList.add('text-red-500');
resultElement.classList.remove('text-green-400');
flagContainer.classList.add('hidden');
return;
}
// Try to evaluate the second input (allowing for expressions and negative numbers)
try {
secondNumber = eval(secondInput); // Use eval to evaluate expressions like -(-10)
if (isNaN(secondNumber) || secondInput >= 10 || secondNumber > 10) { // Second number must also be less than 15
throw new Error("Invalid second number");
}
} catch (error) {
resultElement.textContent = "Please enter a valid second number (less than 10).";
resultElement.classList.add('text-red-500');
resultElement.classList.remove('text-green-400');
flagContainer.classList.add('hidden');
return;
}
// Check if the inputs meet the challenge conditions
if (firstNumber + secondNumber === 30) {
resultElement.textContent = "Correct! The sum is exactly 30.";
resultElement.classList.add('text-green-400');
resultElement.classList.remove('text-red-500');
flagContainer.classList.remove('hidden'); // Show the flag
} else {
resultElement.textContent = "Incorrect! The sum must be 30.";
resultElement.classList.add('text-red-500');
resultElement.classList.remove('text-green-400');
flagContainer.classList.add('hidden');
}
});
</script>
</body>
</html>