query questionData($titleSlug: String!) {
 question(titleSlug: $titleSlug) {
 questionId
 questionFrontendId
 boundTopicId
 title
 titleSlug
 content
 translatedTitle
 translatedContent
 isPaidOnly
 difficulty
 likes
 dislikes
 isLiked
 similarQuestions
 exampleTestcases
 categoryTitle
 contributors {
 username
 profileUrl
 avatarUrl
 __typename
 }
 topicTags {
 name
 slug
 translatedName
 __typename
 }
 companyTagStats
 codeSnippets {
 lang
 langSlug
 code
 __typename
 }
 stats
 hints
 solution {
 id
 canSeeDetail
 paidOnly
 hasVideoSolution
 paidOnlyVideo
 __typename
 }
 status
 sampleTestCase
 metaData
 judgerAvailable
 judgeType
 mysqlSchemas
 enableRunCode
 enableTestMode
 enableDebugger
 envInfo
 libraryUrl
 adminUrl
 challengeQuestion {
 id
 date
 incompleteChallengeCount
 streakCount
 type
 __typename
 }
 __typename
 }
}

data: {,...}
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categoryTitle: "Algorithms"
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content: "<p>Given an array of integers <code>nums</code>&nbsp;and an integer <code>target</code>, return <em>indices of the two numbers such that they add up to <code>target</code></em>.</p>\n\n<p>You may assume that each input would have <strong><em>exactly</em> one solution</strong>, and you may not use the <em>same</em> element twice.</p>\n\n<p>You can return the answer in any order.</p>\n\n<p>&nbsp;</p>\n<p><strong>Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> nums = [2,7,11,15], target = 9\n<strong>Output:</strong> [0,1]\n<strong>Explanation:</strong> Because nums[0] + nums[1] == 9, we return [0, 1].\n</pre>\n\n<p><strong>Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> nums = [3,2,4], target = 6\n<strong>Output:</strong> [1,2]\n</pre>\n\n<p><strong>Example 3:</strong></p>\n\n<pre>\n<strong>Input:</strong> nums = [3,3], target = 6\n<strong>Output:</strong> [0,1]\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>2 &lt;= nums.length &lt;= 10<sup>4</sup></code></li>\n\t<li><code>-10<sup>9</sup> &lt;= nums[i] &lt;= 10<sup>9</sup></code></li>\n\t<li><code>-10<sup>9</sup> &lt;= target &lt;= 10<sup>9</sup></code></li>\n\t<li><strong>Only one valid answer exists.</strong></li>\n</ul>\n\n<p>&nbsp;</p>\n<strong>Follow-up:&nbsp;</strong>Can you come up with an algorithm that is less than&nbsp;<code>O(n<sup>2</sup>)&nbsp;</code>time complexity?"
contributors: []
difficulty: "Easy"
dislikes: 1136
enableDebugger: true
enableRunCode: true
enableTestMode: false
envInfo: "{\"cpp\": [\"C++\", \"<p>Compiled with <code> clang 11 </code> using the latest C++ 17 standard.</p>\\r\\n\\r\\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\\\"https://github.com/google/sanitizers/wiki/AddressSanitizer\\\" target=\\\"_blank\\\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\\r\\n\\r\\n<p>Most standard library headers are already included automatically for your convenience.</p>\"], \"java\": [\"Java\", \"<p><code> OpenJDK 17 </code>. Java 8 features such as lambda expressions and stream API can be used. </p>\\r\\n\\r\\n<p>Most standard library headers are already included automatically for your convenience.</p>\\r\\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>\"], \"python\": [\"Python\", \"<p><code>Python 2.7.12</code>.</p>\\r\\n\\r\\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\\\"https://docs.python.org/2/library/array.html\\\" target=\\\"_blank\\\">array</a>, <a href=\\\"https://docs.python.org/2/library/bisect.html\\\" target=\\\"_blank\\\">bisect</a>, <a href=\\\"https://docs.python.org/2/library/collections.html\\\" target=\\\"_blank\\\">collections</a>. If you need more libraries, you can import it yourself.</p>\\r\\n\\r\\n<p>For Map/TreeMap data structure, you may use <a href=\\\"http://www.grantjenks.com/docs/sortedcontainers/\\\" target=\\\"_blank\\\">sortedcontainers</a> library.</p>\\r\\n\\r\\n<p>Note that Python 2.7 <a href=\\\"https://www.python.org/dev/peps/pep-0373/\\\" target=\\\"_blank\\\">will not be maintained past 2020</a>. For the latest Python, please choose Python3 instead.</p>\"], \"c\": [\"C\", \"<p>Compiled with <code>gcc 8.2</code> using the gnu11 standard.</p>\\r\\n\\r\\n<p>Your code is compiled with level one optimization (<code>-O1</code>). <a href=\\\"https://github.com/google/sanitizers/wiki/AddressSanitizer\\\" target=\\\"_blank\\\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\\r\\n\\r\\n<p>Most standard library headers are already included automatically for your convenience.</p>\\r\\n\\r\\n<p>For hash table operations, you may use <a href=\\\"https://troydhanson.github.io/uthash/\\\" target=\\\"_blank\\\">uthash</a>. \\\"uthash.h\\\" is included by default. Below are some examples:</p>\\r\\n\\r\\n<p><b>1. 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exampleTestcases: "[2,7,11,15]\n9\n[3,2,4]\n6\n[3,3]\n6"
hints: [,...]
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judgeType: "small"
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similarQuestions: "[{\"title\": \"3Sum\", \"titleSlug\": \"3sum\", \"difficulty\": \"Medium\", \"translatedTitle\": null}, {\"title\": \"4Sum\", \"titleSlug\": \"4sum\", \"difficulty\": \"Medium\", \"translatedTitle\": null}, {\"title\": \"Two Sum II - Input Array Is Sorted\", \"titleSlug\": \"two-sum-ii-input-array-is-sorted\", \"difficulty\": \"Medium\", \"translatedTitle\": null}, {\"title\": \"Two Sum III - Data structure design\", \"titleSlug\": \"two-sum-iii-data-structure-design\", \"difficulty\": \"Easy\", \"translatedTitle\": null}, {\"title\": \"Subarray Sum Equals K\", \"titleSlug\": \"subarray-sum-equals-k\", \"difficulty\": \"Medium\", \"translatedTitle\": null}, {\"title\": \"Two Sum IV - Input is a BST\", \"titleSlug\": \"two-sum-iv-input-is-a-bst\", \"difficulty\": \"Easy\", \"translatedTitle\": null}, {\"title\": \"Two Sum Less Than K\", \"titleSlug\": \"two-sum-less-than-k\", \"difficulty\": \"Easy\", \"translatedTitle\": null}, {\"title\": \"Max Number of K-Sum Pairs\", \"titleSlug\": \"max-number-of-k-sum-pairs\", \"difficulty\": \"Medium\", \"translatedTitle\": null}, {\"title\": \"Count Good Meals\", \"titleSlug\": \"count-good-meals\", \"difficulty\": \"Medium\", \"translatedTitle\": null}, {\"title\": \"Count Number of Pairs With Absolute Difference K\", \"titleSlug\": \"count-number-of-pairs-with-absolute-difference-k\", \"difficulty\": \"Easy\", \"translatedTitle\": null}, {\"title\": \"Number of Pairs of Strings With Concatenation Equal to Target\", \"titleSlug\": \"number-of-pairs-of-strings-with-concatenation-equal-to-target\", \"difficulty\": \"Medium\", \"translatedTitle\": null}, {\"title\": \"Find All K-Distant Indices in an Array\", \"titleSlug\": \"find-all-k-distant-indices-in-an-array\", \"difficulty\": \"Easy\", \"translatedTitle\": null}, {\"title\": \"First Letter to Appear Twice\", \"titleSlug\": \"first-letter-to-appear-twice\", \"difficulty\": \"Easy\", \"translatedTitle\": null}, {\"title\": \"Number of Excellent Pairs\", \"titleSlug\": \"number-of-excellent-pairs\", \"difficulty\": \"Hard\", \"translatedTitle\": null}]"
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status: "ac"
title: "Two Sum"
titleSlug: "two-sum"
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translatedTitle: null
__typename: "QuestionNode"