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更新国内版力扣题目描述变更

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2022-05-02 23:42:43 +08:00
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leetcode-cn/problem (English)/避免洪水泛滥(English) [avoid-flood-in-the-city].html
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<p>Your country has an infinite number of lakes. Initially, all the lakes are empty, but when it rains over the <code>nth</code> lake, the <code>nth</code> lake becomes full of water. If it rains over a lake which is <strong>full of water</strong>, there will be a <strong>flood</strong>. Your goal is to avoid the flood in any lake.</p>
<p>Your country has an infinite number of lakes. Initially, all the lakes are empty, but when it rains over the <code>nth</code> lake, the <code>nth</code> lake becomes full of water. If it rains over a lake that is <strong>full of water</strong>, there will be a <strong>flood</strong>. Your goal is to avoid floods in any lake.</p>
<p>Given an integer array <code>rains</code> where:</p>
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<p>If there are multiple valid answers return <strong>any</strong> of them. If it is impossible to avoid flood return <strong>an empty array</strong>.</p>
<p>Notice that if you chose to dry a full lake, it becomes empty, but if you chose to dry an empty lake, nothing changes. (see example 4)</p>
<p>Notice that if you chose to dry a full lake, it becomes empty, but if you chose to dry an empty lake, nothing changes.</p>
<p>&nbsp;</p>
<p><strong>Example 1:</strong></p>