mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
synced 2025-01-11 02:58:13 +08:00
174 lines
17 KiB
JSON
174 lines
17 KiB
JSON
{
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"questionId": "2001",
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"title": "Jump Game VII",
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"titleSlug": "jump-game-vii",
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"content": "<p>You are given a <strong>0-indexed</strong> binary string <code>s</code> and two integers <code>minJump</code> and <code>maxJump</code>. In the beginning, you are standing at index <code>0</code>, which is equal to <code>'0'</code>. You can move from index <code>i</code> to index <code>j</code> if the following conditions are fulfilled:</p>\n\n<ul>\n\t<li><code>i + minJump <= j <= min(i + maxJump, s.length - 1)</code>, and</li>\n\t<li><code>s[j] == '0'</code>.</li>\n</ul>\n\n<p>Return <code>true</code><i> if you can reach index </i><code>s.length - 1</code><i> in </i><code>s</code><em>, or </em><code>false</code><em> otherwise.</em></p>\n\n<p> </p>\n<p><strong>Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> s = "<u>0</u>11<u>0</u>1<u>0</u>", minJump = 2, maxJump = 3\n<strong>Output:</strong> true\n<strong>Explanation:</strong>\nIn the first step, move from index 0 to index 3. \nIn the second step, move from index 3 to index 5.\n</pre>\n\n<p><strong>Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> s = "01101110", minJump = 2, maxJump = 3\n<strong>Output:</strong> false\n</pre>\n\n<p> </p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>2 <= s.length <= 10<sup>5</sup></code></li>\n\t<li><code>s[i]</code> is either <code>'0'</code> or <code>'1'</code>.</li>\n\t<li><code>s[0] == '0'</code></li>\n\t<li><code>1 <= minJump <= maxJump < s.length</code></li>\n</ul>\n",
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"difficulty": "Medium",
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"exampleTestcases": "\"011010\"\n2\n3\n\"01101110\"\n2\n3",
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"categoryTitle": "Algorithms",
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{
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"name": "Two Pointers",
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"name": "Prefix Sum",
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"code": "class Solution(object):\n def canReach(self, s, minJump, maxJump):\n \"\"\"\n :type s: str\n :type minJump: int\n :type maxJump: int\n :rtype: bool\n \"\"\"\n ",
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"code": "# @param {String} s\n# @param {Integer} min_jump\n# @param {Integer} max_jump\n# @return {Boolean}\ndef can_reach(s, min_jump, max_jump)\n \nend",
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"code": "impl Solution {\n pub fn can_reach(s: String, min_jump: i32, max_jump: i32) -> bool {\n \n }\n}",
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"code": "class Solution {\n\n /**\n * @param String $s\n * @param Integer $minJump\n * @param Integer $maxJump\n * @return Boolean\n */\n function canReach($s, $minJump, $maxJump) {\n \n }\n}",
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"code": "function canReach(s: string, minJump: number, maxJump: number): boolean {\n\n};",
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"code": "(define/contract (can-reach s minJump maxJump)\n (-> string? exact-integer? exact-integer? boolean?)\n\n )",
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"lang": "Erlang",
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"code": "-spec can_reach(S :: unicode:unicode_binary(), MinJump :: integer(), MaxJump :: integer()) -> boolean().\ncan_reach(S, MinJump, MaxJump) ->\n .",
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"code": "defmodule Solution do\n @spec can_reach(s :: String.t, min_jump :: integer, max_jump :: integer) :: boolean\n def can_reach(s, min_jump, max_jump) do\n\n end\nend",
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"hints": [
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"Consider for each reachable index i the interval [i + a, i + b].",
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"Use partial sums to mark the intervals as reachable."
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],
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"sampleTestCase": "\"011010\"\n2\n3",
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