42 lines
1.1 KiB
PHP
42 lines
1.1 KiB
PHP
<?php
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?>
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<!doctype html>
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<html lang="pl">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport"
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content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
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<meta http-equiv="X-UA-Compatible" content="ie=edge">
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<title>Z89 - N potęg dwójki</title>
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<link rel="stylesheet" href="style.css">
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</head>
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<body>
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<header>
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<h1>Zadanie Z89</h1>
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<h2>Autor: Jakub Grzegorczyk</h2>
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</header>
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<div class="box">
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<p>Napisz program, który dla podanej liczby całkowitej N oblicza N kolejnych potęg dwójki.</p>
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</div>
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<div class="box">
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<form action="index.php" method="post">
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<fieldset>
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<label for="n">Podaj N:</label>
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<input type="text" name="n" id="n">
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</fieldset>
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<button type="submit">Wyślij</button>
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</form>
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</div>
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<?php
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if ($_SERVER['REQUEST_METHOD'] == 'POST') {
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$n = htmlspecialchars($_POST['n']);
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echo '<div class="box">';
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for ($i = 1; $i <= $n; $i++) {
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echo "2<sup>$i</sup> = <b>" . pow(2, $i) . "</b><br>";
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}
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echo '</div>';
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}
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?>
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</body>
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</html>
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