mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
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192 lines
22 KiB
JSON
192 lines
22 KiB
JSON
{
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"questionId": "3630",
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"title": "Total Characters in String After Transformations II",
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"content": "<p>You are given a string <code>s</code> consisting of lowercase English letters, an integer <code>t</code> representing the number of <strong>transformations</strong> to perform, and an array <code>nums</code> of size 26. In one <strong>transformation</strong>, every character in <code>s</code> is replaced according to the following rules:</p>\n\n<ul>\n\t<li>Replace <code>s[i]</code> with the <strong>next</strong> <code>nums[s[i] - 'a']</code> consecutive characters in the alphabet. For example, if <code>s[i] = 'a'</code> and <code>nums[0] = 3</code>, the character <code>'a'</code> transforms into the next 3 consecutive characters ahead of it, which results in <code>"bcd"</code>.</li>\n\t<li>The transformation <strong>wraps</strong> around the alphabet if it exceeds <code>'z'</code>. For example, if <code>s[i] = 'y'</code> and <code>nums[24] = 3</code>, the character <code>'y'</code> transforms into the next 3 consecutive characters ahead of it, which results in <code>"zab"</code>.</li>\n</ul>\n\n<p>Return the length of the resulting string after <strong>exactly</strong> <code>t</code> transformations.</p>\n\n<p>Since the answer may be very large, return it <strong>modulo</strong> <code>10<sup>9</sup> + 7</code>.</p>\n\n<p> </p>\n<p><strong class=\"example\">Example 1:</strong></p>\n\n<div class=\"example-block\">\n<p><strong>Input:</strong> <span class=\"example-io\">s = "abcyy", t = 2, nums = [1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,2]</span></p>\n\n<p><strong>Output:</strong> <span class=\"example-io\">7</span></p>\n\n<p><strong>Explanation:</strong></p>\n\n<ul>\n\t<li>\n\t<p><strong>First Transformation (t = 1):</strong></p>\n\n\t<ul>\n\t\t<li><code>'a'</code> becomes <code>'b'</code> as <code>nums[0] == 1</code></li>\n\t\t<li><code>'b'</code> becomes <code>'c'</code> as <code>nums[1] == 1</code></li>\n\t\t<li><code>'c'</code> becomes <code>'d'</code> as <code>nums[2] == 1</code></li>\n\t\t<li><code>'y'</code> becomes <code>'z'</code> as <code>nums[24] == 1</code></li>\n\t\t<li><code>'y'</code> becomes <code>'z'</code> as <code>nums[24] == 1</code></li>\n\t\t<li>String after the first transformation: <code>"bcdzz"</code></li>\n\t</ul>\n\t</li>\n\t<li>\n\t<p><strong>Second Transformation (t = 2):</strong></p>\n\n\t<ul>\n\t\t<li><code>'b'</code> becomes <code>'c'</code> as <code>nums[1] == 1</code></li>\n\t\t<li><code>'c'</code> becomes <code>'d'</code> as <code>nums[2] == 1</code></li>\n\t\t<li><code>'d'</code> becomes <code>'e'</code> as <code>nums[3] == 1</code></li>\n\t\t<li><code>'z'</code> becomes <code>'ab'</code> as <code>nums[25] == 2</code></li>\n\t\t<li><code>'z'</code> becomes <code>'ab'</code> as <code>nums[25] == 2</code></li>\n\t\t<li>String after the second transformation: <code>"cdeabab"</code></li>\n\t</ul>\n\t</li>\n\t<li>\n\t<p><strong>Final Length of the string:</strong> The string is <code>"cdeabab"</code>, which has 7 characters.</p>\n\t</li>\n</ul>\n</div>\n\n<p><strong class=\"example\">Example 2:</strong></p>\n\n<div class=\"example-block\">\n<p><strong>Input:</strong> <span class=\"example-io\">s = "azbk", t = 1, nums = [2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2]</span></p>\n\n<p><strong>Output:</strong> <span class=\"example-io\">8</span></p>\n\n<p><strong>Explanation:</strong></p>\n\n<ul>\n\t<li>\n\t<p><strong>First Transformation (t = 1):</strong></p>\n\n\t<ul>\n\t\t<li><code>'a'</code> becomes <code>'bc'</code> as <code>nums[0] == 2</code></li>\n\t\t<li><code>'z'</code> becomes <code>'ab'</code> as <code>nums[25] == 2</code></li>\n\t\t<li><code>'b'</code> becomes <code>'cd'</code> as <code>nums[1] == 2</code></li>\n\t\t<li><code>'k'</code> becomes <code>'lm'</code> as <code>nums[10] == 2</code></li>\n\t\t<li>String after the first transformation: <code>"bcabcdlm"</code></li>\n\t</ul>\n\t</li>\n\t<li>\n\t<p><strong>Final Length of the string:</strong> The string is <code>"bcabcdlm"</code>, which has 8 characters.</p>\n\t</li>\n</ul>\n</div>\n\n<p> </p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 <= s.length <= 10<sup>5</sup></code></li>\n\t<li><code>s</code> consists only of lowercase English letters.</li>\n\t<li><code>1 <= t <= 10<sup>9</sup></code></li>\n\t<li><code><font face=\"monospace\">nums.length == 26</font></code></li>\n\t<li><code><font face=\"monospace\">1 <= nums[i] <= 25</font></code></li>\n</ul>\n",
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Deleting an item in a hash:</b>\\r\\n<pre>\\r\\nvoid delete_user(struct hash_entry *user) {\\r\\n HASH_DEL(users, user); \\r\\n}\\r\\n</pre>\\r\\n</p>\"], \"csharp\": [\"C#\", \"<p><a href=\\\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-12\\\" target=\\\"_blank\\\">C# 12</a> with .NET 8 runtime</p>\"], \"javascript\": [\"JavaScript\", \"<p><code>Node.js 20.10.0</code>.</p>\\r\\n\\r\\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\\\"http://node.green/\\\" target=\\\"_blank\\\">new ES6 features</a>.</p>\\r\\n\\r\\n<p><a href=\\\"https://lodash.com\\\" target=\\\"_blank\\\">lodash.js</a> library is included by default.</p>\\r\\n\\r\\n<p>For Priority Queue / Queue data structures, you may use 5.4.0 version of <a href=\\\"https://github.com/datastructures-js/priority-queue/blob/v5/README.md\\\" target=\\\"_blank\\\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\\\"https://github.com/datastructures-js/queue/tree/v4.2.3\\\" target=\\\"_blank\\\">datastructures-js/queue</a> and 1.0.4 version of <a href=\\\"https://github.com/datastructures-js/deque/tree/v1.0.4\\\" target=\\\"_blank\\\">datastructures-js/deque</a>.</p>\"], \"ruby\": [\"Ruby\", \"<p><code>Ruby 3.2</code></p>\\r\\n\\r\\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>\"], \"swift\": [\"Swift\", \"<p><code>Swift 5.10</code>.</p>\\r\\n\\r\\n<p>You may use <a href=\\\"https://github.com/apple/swift-algorithms/tree/1.2.0\\\" target=\\\"_blank\\\">swift-algorithms 1.2.0</a> and <a href=\\\"https://github.com/apple/swift-collections/tree/1.1.0\\\" target=\\\"_blank\\\">swift-collections 1.1.0</a>.</p>\"], \"golang\": [\"Go\", \"<p><code>Go 1.23</code></p>\\r\\n<p>Support <a href=\\\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\\\" target=\\\"_blank\\\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\\\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\\\" target=\\\"_blank\\\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>\"], \"python3\": [\"Python3\", \"<p><code>Python 3.11</code>.</p>\\r\\n\\r\\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\\\"https://docs.python.org/3/library/array.html\\\" target=\\\"_blank\\\">array</a>, <a href=\\\"https://docs.python.org/3/library/bisect.html\\\" target=\\\"_blank\\\">bisect</a>, <a href=\\\"https://docs.python.org/3/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>\"], \"scala\": [\"Scala\", \"<p><code>Scala 3.3.1</code>.</p>\"], \"kotlin\": [\"Kotlin\", \"<p><code>Kotlin 1.9.0</code>.</p>\\r\\n\\r\\n<p>We are using an experimental compiler provided by JetBrains.</p>\"], \"rust\": [\"Rust\", \"<p><code>Rust 1.79.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\\r\\n\\r\\n<p>Supports <a href=\\\"https://crates.io/crates/rand\\\" target=\\\"_blank\\\">rand v0.8</a> and <a href=\\\"https://crates.io/crates/regex\\\" target=\\\"_blank\\\">regex\\u00a0v1</a> from crates.io</p>\"], \"php\": [\"PHP\", \"<p><code>PHP 8.2</code>.</p>\\r\\n<p>With bcmath module</p>\"], \"typescript\": [\"Typescript\", \"<p><code>TypeScript 5.1.6, Node.js 20.10.0</code>.</p>\\r\\n\\r\\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2022</code></p>\\r\\n\\r\\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\\\"http://node.green/\\\" target=\\\"_blank\\\">new ES2022 features</a>.</p>\\r\\n\\r\\n<p><a href=\\\"https://lodash.com\\\" target=\\\"_blank\\\">lodash.js</a> library is included by default.</p>\\r\\n\\r\\n<p>For Priority Queue / Queue data structures, you may use 5.4.0 version of <a href=\\\"https://github.com/datastructures-js/priority-queue/blob/v5/README.md\\\" target=\\\"_blank\\\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\\\"https://github.com/datastructures-js/queue/tree/v4.2.3\\\" target=\\\"_blank\\\">datastructures-js/queue</a> and 1.0.4 version of <a href=\\\"https://github.com/datastructures-js/deque/tree/v1.0.4\\\" target=\\\"_blank\\\">datastructures-js/deque</a>.</p>\"], \"racket\": [\"Racket\", \"<p><a href=\\\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\\\" target=\\\"_blank\\\">Racket CS</a> v8.11</p>\\r\\n\\r\\n<p>Using <code>#lang racket</code></p>\\r\\n\\r\\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>\"], \"erlang\": [\"Erlang\", \"Erlang/OTP 26\"], \"elixir\": [\"Elixir\", \"Elixir 1.16 with Erlang/OTP 26\"], \"dart\": [\"Dart\", \"<p>Dart 3.2. You may use package <a href=\\\"https://pub.dev/packages/collection/versions/1.18.0\\\" target=\\\"_blank\\\">collection</a></p>\\r\\n\\r\\n<p>Your code will be run directly without compiling</p>\"]}",
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