leetcode-problemset/leetcode-cn/originData/check-if-all-the-integers-in-a-range-are-covered.json

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        "question": {
            "questionId": "2005",
            "questionFrontendId": "1893",
            "categoryTitle": "Algorithms",
            "boundTopicId": 820491,
            "title": "Check if All the Integers in a Range Are Covered",
            "titleSlug": "check-if-all-the-integers-in-a-range-are-covered",
            "content": "<p>You are given a 2D integer array <code>ranges</code> and two integers <code>left</code> and <code>right</code>. Each <code>ranges[i] = [start<sub>i</sub>, end<sub>i</sub>]</code> represents an <strong>inclusive</strong> interval between <code>start<sub>i</sub></code> and <code>end<sub>i</sub></code>.</p>\n\n<p>Return <code>true</code> <em>if each integer in the inclusive range</em> <code>[left, right]</code> <em>is covered by <strong>at least one</strong> interval in</em> <code>ranges</code>. Return <code>false</code> <em>otherwise</em>.</p>\n\n<p>An integer <code>x</code> is covered by an interval <code>ranges[i] = [start<sub>i</sub>, end<sub>i</sub>]</code> if <code>start<sub>i</sub> &lt;= x &lt;= end<sub>i</sub></code>.</p>\n\n<p>&nbsp;</p>\n<p><strong class=\"example\">Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> ranges = [[1,2],[3,4],[5,6]], left = 2, right = 5\n<strong>Output:</strong> true\n<strong>Explanation:</strong> Every integer between 2 and 5 is covered:\n- 2 is covered by the first range.\n- 3 and 4 are covered by the second range.\n- 5 is covered by the third range.\n</pre>\n\n<p><strong class=\"example\">Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> ranges = [[1,10],[10,20]], left = 21, right = 21\n<strong>Output:</strong> false\n<strong>Explanation:</strong> 21 is not covered by any range.\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 &lt;= ranges.length &lt;= 50</code></li>\n\t<li><code>1 &lt;= start<sub>i</sub> &lt;= end<sub>i</sub> &lt;= 50</code></li>\n\t<li><code>1 &lt;= left &lt;= right &lt;= 50</code></li>\n</ul>\n",
            "translatedTitle": "检查是否区域内所有整数都被覆盖",
            "translatedContent": "<p>给你一个二维整数数组 <code>ranges</code> 和两个整数 <code>left</code> 和 <code>right</code> 。每个 <code>ranges[i] = [start<sub>i</sub>, end<sub>i</sub>]</code> 表示一个从 <code>start<sub>i</sub></code> 到 <code>end<sub>i</sub></code> 的 <strong>闭区间</strong> 。</p>\n\n<p>如果闭区间 <code>[left, right]</code> 内每个整数都被 <code>ranges</code> 中 <strong>至少一个</strong> 区间覆盖，那么请你返回 <code>true</code> ，否则返回 <code>false</code> 。</p>\n\n<p>已知区间 <code>ranges[i] = [start<sub>i</sub>, end<sub>i</sub>]</code> ，如果整数 <code>x</code> 满足 <code>start<sub>i</sub> <= x <= end<sub>i</sub></code> ，那么我们称整数<code>x</code> 被覆盖了。</p>\n\n<p> </p>\n\n<p><strong>示例 1：</strong></p>\n\n<pre>\n<b>输入：</b>ranges = [[1,2],[3,4],[5,6]], left = 2, right = 5\n<b>输出：</b>true\n<b>解释：</b>2 到 5 的每个整数都被覆盖了：\n- 2 被第一个区间覆盖。\n- 3 和 4 被第二个区间覆盖。\n- 5 被第三个区间覆盖。\n</pre>\n\n<p><strong>示例 2：</strong></p>\n\n<pre>\n<b>输入：</b>ranges = [[1,10],[10,20]], left = 21, right = 21\n<b>输出：</b>false\n<b>解释：</b>21 没有被任何一个区间覆盖。\n</pre>\n\n<p> </p>\n\n<p><strong>提示：</strong></p>\n\n<ul>\n\t<li><code>1 <= ranges.length <= 50</code></li>\n\t<li><code>1 <= start<sub>i</sub> <= end<sub>i</sub> <= 50</code></li>\n\t<li><code>1 <= left <= right <= 50</code></li>\n</ul>\n",
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            "hints": [
                "Iterate over every integer point in the range [left, right].",
                "For each of these points check if it is included in one of the ranges."
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