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"title": "Prime Number of Set Bits in Binary Representation",
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"content": "<p>Given two integers <code>left</code> and <code>right</code>, return <em>the <strong>count</strong> of numbers in the <strong>inclusive</strong> range </em><code>[left, right]</code><em> having a <strong>prime number of set bits</strong> in their binary representation</em>.</p>\n\n<p>Recall that the <strong>number of set bits</strong> an integer has is the number of <code>1</code>'s present when written in binary.</p>\n\n<ul>\n\t<li>For example, <code>21</code> written in binary is <code>10101</code>, which has <code>3</code> set bits.</li>\n</ul>\n\n<p> </p>\n<p><strong>Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> left = 6, right = 10\n<strong>Output:</strong> 4\n<strong>Explanation:</strong>\n6 -> 110 (2 set bits, 2 is prime)\n7 -> 111 (3 set bits, 3 is prime)\n8 -> 1000 (1 set bit, 1 is not prime)\n9 -> 1001 (2 set bits, 2 is prime)\n10 -> 1010 (2 set bits, 2 is prime)\n4 numbers have a prime number of set bits.\n</pre>\n\n<p><strong>Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> left = 10, right = 15\n<strong>Output:</strong> 5\n<strong>Explanation:</strong>\n10 -> 1010 (2 set bits, 2 is prime)\n11 -> 1011 (3 set bits, 3 is prime)\n12 -> 1100 (2 set bits, 2 is prime)\n13 -> 1101 (3 set bits, 3 is prime)\n14 -> 1110 (3 set bits, 3 is prime)\n15 -> 1111 (4 set bits, 4 is not prime)\n5 numbers have a prime number of set bits.\n</pre>\n\n<p> </p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 <= left <= right <= 10<sup>6</sup></code></li>\n\t<li><code>0 <= right - left <= 10<sup>4</sup></code></li>\n</ul>\n",
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"code": "class Solution {\npublic:\n int countPrimeSetBits(int left, int right) {\n \n }\n};",
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"code": "class Solution(object):\n def countPrimeSetBits(self, left, right):\n \"\"\"\n :type left: int\n :type right: int\n :rtype: int\n \"\"\"\n ",
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"code": "/**\n * @param {number} left\n * @param {number} right\n * @return {number}\n */\nvar countPrimeSetBits = function(left, right) {\n \n};",
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