mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
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187 lines
17 KiB
JSON
187 lines
17 KiB
JSON
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"title": "Count Subarrays With Fixed Bounds",
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"content": "<p>You are given an integer array <code>nums</code> and two integers <code>minK</code> and <code>maxK</code>.</p>\n\n<p>A <strong>fixed-bound subarray</strong> of <code>nums</code> is a subarray that satisfies the following conditions:</p>\n\n<ul>\n\t<li>The <strong>minimum</strong> value in the subarray is equal to <code>minK</code>.</li>\n\t<li>The <strong>maximum</strong> value in the subarray is equal to <code>maxK</code>.</li>\n</ul>\n\n<p>Return <em>the <strong>number</strong> of fixed-bound subarrays</em>.</p>\n\n<p>A <strong>subarray</strong> is a <strong>contiguous</strong> part of an array.</p>\n\n<p> </p>\n<p><strong>Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> nums = [1,3,5,2,7,5], minK = 1, maxK = 5\n<strong>Output:</strong> 2\n<strong>Explanation:</strong> The fixed-bound subarrays are [1,3,5] and [1,3,5,2].\n</pre>\n\n<p><strong>Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> nums = [1,1,1,1], minK = 1, maxK = 1\n<strong>Output:</strong> 10\n<strong>Explanation:</strong> Every subarray of nums is a fixed-bound subarray. There are 10 possible subarrays.\n</pre>\n\n<p> </p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>2 <= nums.length <= 10<sup>5</sup></code></li>\n\t<li><code>1 <= nums[i], minK, maxK <= 10<sup>6</sup></code></li>\n</ul>\n",
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"code": "class Solution(object):\n def countSubarrays(self, nums, minK, maxK):\n \"\"\"\n :type nums: List[int]\n :type minK: int\n :type maxK: int\n :rtype: int\n \"\"\"\n ",
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"code": "/**\n * @param {number[]} nums\n * @param {number} minK\n * @param {number} maxK\n * @return {number}\n */\nvar countSubarrays = function(nums, minK, maxK) {\n \n};",
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"lang": "Ruby",
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"code": "# @param {Integer[]} nums\n# @param {Integer} min_k\n# @param {Integer} max_k\n# @return {Integer}\ndef count_subarrays(nums, min_k, max_k)\n \nend",
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"lang": "Swift",
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"code": "class Solution {\n func countSubarrays(_ nums: [Int], _ minK: Int, _ maxK: Int) -> Int {\n \n }\n}",
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"lang": "Go",
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"code": "func countSubarrays(nums []int, minK int, maxK int) int64 {\n \n}",
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"code": "object Solution {\n def countSubarrays(nums: Array[Int], minK: Int, maxK: Int): Long = {\n \n }\n}",
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"lang": "Kotlin",
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"code": "class Solution {\n fun countSubarrays(nums: IntArray, minK: Int, maxK: Int): Long {\n \n }\n}",
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"lang": "Rust",
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"langSlug": "rust",
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"code": "impl Solution {\n pub fn count_subarrays(nums: Vec<i32>, min_k: i32, max_k: i32) -> i64 {\n \n }\n}",
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"code": "class Solution {\n\n /**\n * @param Integer[] $nums\n * @param Integer $minK\n * @param Integer $maxK\n * @return Integer\n */\n function countSubarrays($nums, $minK, $maxK) {\n \n }\n}",
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"code": "(define/contract (count-subarrays nums minK maxK)\n (-> (listof exact-integer?) exact-integer? exact-integer? exact-integer?)\n\n )",
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"hints": [
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"Can you solve the problem if all the numbers in the array were between minK and maxK inclusive?",
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"Think of the inclusion-exclusion principle.",
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"Divide the array into multiple subarrays such that each number in each subarray is between minK and maxK inclusive, solve the previous problem for each subarray, and sum all the answers."
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"sampleTestCase": "[1,3,5,2,7,5]\n1\n5",
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