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leetcode-problemset/leetcode/originData/check-if-the-number-is-fascinating.json

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{
"data": {
"question": {
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"title": "Check if The Number is Fascinating",
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"content": "<p>You are given an integer <code>n</code> that consists of exactly <code>3</code> digits.</p>\n\n<p>We call the number <code>n</code> <strong>fascinating</strong> if, after the following modification, the resulting number contains all the digits from <code>1</code> to <code>9</code> <strong>exactly</strong> once and does not contain any <code>0</code>&#39;s:</p>\n\n<ul>\n\t<li><strong>Concatenate</strong> <code>n</code> with the numbers <code>2 * n</code> and <code>3 * n</code>.</li>\n</ul>\n\n<p>Return <code>true</code><em> if </em><code>n</code><em> is fascinating, or </em><code>false</code><em> otherwise</em>.</p>\n\n<p><strong>Concatenating</strong> two numbers means joining them together. For example, the concatenation of <code>121</code> and <code>371</code> is <code>121371</code>.</p>\n\n<p>&nbsp;</p>\n<p><strong class=\"example\">Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> n = 192\n<strong>Output:</strong> true\n<strong>Explanation:</strong> We concatenate the numbers n = 192 and 2 * n = 384 and 3 * n = 576. The resulting number is 192384576. This number contains all the digits from 1 to 9 exactly once.\n</pre>\n\n<p><strong class=\"example\">Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> n = 100\n<strong>Output:</strong> false\n<strong>Explanation:</strong> We concatenate the numbers n = 100 and 2 * n = 200 and 3 * n = 300. The resulting number is 100200300. This number does not satisfy any of the conditions.\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>100 &lt;= n &lt;= 999</code></li>\n</ul>\n",
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"hints": [
"Consider changing the number to the way it is described in the statement.",
"Check if the resulting number contains all the digits from 1 to 9 exactly once."
],
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