mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
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179 lines
16 KiB
JSON
179 lines
16 KiB
JSON
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"questionId": "3034",
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"title": "Points That Intersect With Cars",
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"titleSlug": "points-that-intersect-with-cars",
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"content": "<p>You are given a <strong>0-indexed</strong> 2D integer array <code>nums</code> representing the coordinates of the cars parking on a number line. For any index <code>i</code>, <code>nums[i] = [start<sub>i</sub>, end<sub>i</sub>]</code> where <code>start<sub>i</sub></code> is the starting point of the <code>i<sup>th</sup></code> car and <code>end<sub>i</sub></code> is the ending point of the <code>i<sup>th</sup></code> car.</p>\n\n<p>Return <em>the number of integer points on the line that are covered with <strong>any part</strong> of a car.</em></p>\n\n<p> </p>\n<p><strong class=\"example\">Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> nums = [[3,6],[1,5],[4,7]]\n<strong>Output:</strong> 7\n<strong>Explanation:</strong> All the points from 1 to 7 intersect at least one car, therefore the answer would be 7.\n</pre>\n\n<p><strong class=\"example\">Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> nums = [[1,3],[5,8]]\n<strong>Output:</strong> 7\n<strong>Explanation:</strong> Points intersecting at least one car are 1, 2, 3, 5, 6, 7, 8. There are a total of 7 points, therefore the answer would be 7.\n</pre>\n\n<p> </p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 <= nums.length <= 100</code></li>\n\t<li><code>nums[i].length == 2</code></li>\n\t<li><code><font face=\"monospace\">1 <= start<sub>i</sub> <= end<sub>i</sub> <= 100</font></code></li>\n</ul>\n",
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"difficulty": "Easy",
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"exampleTestcases": "[[3,6],[1,5],[4,7]]\n[[1,3],[5,8]]",
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"categoryTitle": "Algorithms",
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"code": "class Solution {\npublic:\n int numberOfPoints(vector<vector<int>>& nums) {\n \n }\n};",
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"code": "class Solution {\n public int numberOfPoints(List<List<Integer>> nums) {\n \n }\n}",
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"code": "class Solution(object):\n def numberOfPoints(self, nums):\n \"\"\"\n :type nums: List[List[int]]\n :rtype: int\n \"\"\"\n ",
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"code": "# @param {Integer[][]} nums\n# @return {Integer}\ndef number_of_points(nums)\n \nend",
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"code": "impl Solution {\n pub fn number_of_points(nums: Vec<Vec<i32>>) -> i32 {\n \n }\n}",
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"code": "(define/contract (number-of-points nums)\n (-> (listof (listof exact-integer?)) exact-integer?)\n\n )",
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"code": "-spec number_of_points(Nums :: [[integer()]]) -> integer().\nnumber_of_points(Nums) ->\n .",
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"code": "defmodule Solution do\n @spec number_of_points(nums :: [[integer]]) :: integer\n def number_of_points(nums) do\n\n end\nend",
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"Sort the array according to first element and then starting from the <code>0<sup>th</sup></code> index remove the overlapping parts and return the count of non-overlapping points."
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