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2022-03-29 16:56:27 +08:00
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leetcode-cn/originData/bulb-switcher.json
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@@ -12,7 +12,7 @@
"translatedContent": "<p>初始时有&nbsp;<code>n</code><em> </em>个灯泡处于关闭状态。第一轮，你将会打开所有灯泡。接下来的第二轮，你将会每两个灯泡关闭第二个。</p>\n\n<p>第三轮，你每三个灯泡就切换第三个灯泡的开关（即，打开变关闭，关闭变打开）。第 <code>i</code> 轮，你每 <code>i</code> 个灯泡就切换第 <code>i</code> 个灯泡的开关。直到第 <code>n</code> 轮，你只需要切换最后一个灯泡的开关。</p>\n\n<p>找出并返回 <code>n</code><em>&nbsp;</em>轮后有多少个亮着的灯泡。</p>\n\n<p>&nbsp;</p>\n\n<p><strong>示例 1：</strong></p>\n\n<p><img alt=\"\" src=\"https://assets.leetcode.com/uploads/2020/11/05/bulb.jpg\" style=\"width: 421px; height: 321px;\" /></p>\n\n<pre>\n<strong>输入：</strong>n =<strong> </strong>3\n<strong>输出：</strong>1 \n<strong>解释：</strong>\n初始时, 灯泡状态 <strong>[关闭, 关闭, 关闭]</strong>.\n第一轮后, 灯泡状态 <strong>[开启, 开启, 开启]</strong>.\n第二轮后, 灯泡状态 <strong>[开启, 关闭, 开启]</strong>.\n第三轮后, 灯泡状态 <strong>[开启, 关闭, 关闭]</strong>. \n\n你应该返回 1，因为只有一个灯泡还亮着。\n</pre>\n\n<p><strong>示例 2：</strong></p>\n\n<pre>\n<strong>输入：</strong>n = 0\n<strong>输出：</strong>0\n</pre>\n\n<p><strong>示例 3：</strong></p>\n\n<pre>\n<strong>输入：</strong>n = 1\n<strong>输出：</strong>1\n</pre>\n\n<p>&nbsp;</p>\n\n<p><strong>提示：</strong></p>\n\n<ul>\n\t<li><code>0 &lt;= n &lt;= 10<sup>9</sup></code></li>\n</ul>\n",
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"difficulty": "Medium",
"likes": 306,
"likes": 307,
"dislikes": 0,
"isLiked": null,
"similarQuestions": "[{\"title\": \"Bulb Switcher II\", \"titleSlug\": \"bulb-switcher-ii\", \"difficulty\": \"Medium\", \"translatedTitle\": \"\\u706f\\u6ce1\\u5f00\\u5173 \\u2161\"}, {\"title\": \"Minimum Number of K Consecutive Bit Flips\", \"titleSlug\": \"minimum-number-of-k-consecutive-bit-flips\", \"difficulty\": \"Hard\", \"translatedTitle\": \"K \\u8fde\\u7eed\\u4f4d\\u7684\\u6700\\u5c0f\\u7ffb\\u8f6c\\u6b21\\u6570\"}]",
@@ -143,7 +143,7 @@
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"stats": "{\"totalAccepted\": \"51K\", \"totalSubmission\": \"89K\", \"totalAcceptedRaw\": 50952, \"totalSubmissionRaw\": 89016, \"acRate\": \"57.2%\"}",
"hints": [],
"solution": null,
"status": null,