mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
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167 lines
14 KiB
JSON
167 lines
14 KiB
JSON
{
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"question": {
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"questionId": "1070",
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"questionFrontendId": "1017",
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"boundTopicId": null,
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"title": "Convert to Base -2",
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"titleSlug": "convert-to-base-2",
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"content": "<p>Given an integer <code>n</code>, return <em>a binary string representing its representation in base</em> <code>-2</code>.</p>\n\n<p><strong>Note</strong> that the returned string should not have leading zeros unless the string is <code>"0"</code>.</p>\n\n<p> </p>\n<p><strong class=\"example\">Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> n = 2\n<strong>Output:</strong> "110"\n<strong>Explantion:</strong> (-2)<sup>2</sup> + (-2)<sup>1</sup> = 2\n</pre>\n\n<p><strong class=\"example\">Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> n = 3\n<strong>Output:</strong> "111"\n<strong>Explantion:</strong> (-2)<sup>2</sup> + (-2)<sup>1</sup> + (-2)<sup>0</sup> = 3\n</pre>\n\n<p><strong class=\"example\">Example 3:</strong></p>\n\n<pre>\n<strong>Input:</strong> n = 4\n<strong>Output:</strong> "100"\n<strong>Explantion:</strong> (-2)<sup>2</sup> = 4\n</pre>\n\n<p> </p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>0 <= n <= 10<sup>9</sup></code></li>\n</ul>\n",
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"difficulty": "Medium",
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"exampleTestcases": "2\n3\n4",
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"categoryTitle": "Algorithms",
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"code": "class Solution {\npublic:\n string baseNeg2(int n) {\n \n }\n};",
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"code": "class Solution {\n public String baseNeg2(int n) {\n \n }\n}",
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"lang": "Python",
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"code": "class Solution(object):\n def baseNeg2(self, n):\n \"\"\"\n :type n: int\n :rtype: str\n \"\"\"\n ",
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"code": "class Solution:\n def baseNeg2(self, n: int) -> str:\n ",
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"code": "# @param {Integer} n\n# @return {String}\ndef base_neg2(n)\n \nend",
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"code": "impl Solution {\n pub fn base_neg2(n: i32) -> String {\n \n }\n}",
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"code": "(define/contract (base-neg2 n)\n (-> exact-integer? string?)\n )",
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"lang": "Erlang",
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"langSlug": "erlang",
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"code": "-spec base_neg2(N :: integer()) -> unicode:unicode_binary().\nbase_neg2(N) ->\n .",
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"langSlug": "elixir",
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"code": "defmodule Solution do\n @spec base_neg2(n :: integer) :: String.t\n def base_neg2(n) do\n \n end\nend",
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"hints": [
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"Figure out whether you need the ones digit placed or not, then shift by two."
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],
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"solution": null,
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"status": null,
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"sampleTestCase": "2",
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"metaData": "{\n \"name\": \"baseNeg2\",\n \"params\": [\n {\n \"name\": \"n\",\n \"type\": \"integer\"\n }\n ],\n \"return\": {\n \"type\": \"string\"\n }\n}",
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