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43 lines
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43 lines
2.6 KiB
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<p>There is a group of <code>n</code> people labeled from <code>0</code> to <code>n - 1</code> where each person has a different amount of money and a different level of quietness.</p>
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<p>You are given an array <code>richer</code> where <code>richer[i] = [a<sub>i</sub>, b<sub>i</sub>]</code> indicates that <code>a<sub>i</sub></code> has more money than <code>b<sub>i</sub></code> and an integer array <code>quiet</code> where <code>quiet[i]</code> is the quietness of the <code>i<sup>th</sup></code> person. All the given data in richer are <strong>logically correct</strong> (i.e., the data will not lead you to a situation where <code>x</code> is richer than <code>y</code> and <code>y</code> is richer than <code>x</code> at the same time).</p>
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<p>Return <em>an integer array </em><code>answer</code><em> where </em><code>answer[x] = y</code><em> if </em><code>y</code><em> is the least quiet person (that is, the person </em><code>y</code><em> with the smallest value of </em><code>quiet[y]</code><em>) among all people who definitely have equal to or more money than the person </em><code>x</code>.</p>
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<p> </p>
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<p><strong class="example">Example 1:</strong></p>
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<pre>
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<strong>Input:</strong> richer = [[1,0],[2,1],[3,1],[3,7],[4,3],[5,3],[6,3]], quiet = [3,2,5,4,6,1,7,0]
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<strong>Output:</strong> [5,5,2,5,4,5,6,7]
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<strong>Explanation:</strong>
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answer[0] = 5.
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Person 5 has more money than 3, which has more money than 1, which has more money than 0.
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The only person who is quieter (has lower quiet[x]) is person 7, but it is not clear if they have more money than person 0.
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answer[7] = 7.
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Among all people that definitely have equal to or more money than person 7 (which could be persons 3, 4, 5, 6, or 7), the person who is the quietest (has lower quiet[x]) is person 7.
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The other answers can be filled out with similar reasoning.
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</pre>
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<p><strong class="example">Example 2:</strong></p>
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<pre>
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<strong>Input:</strong> richer = [], quiet = [0]
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<strong>Output:</strong> [0]
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</pre>
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<p> </p>
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<p><strong>Constraints:</strong></p>
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<ul>
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<li><code>n == quiet.length</code></li>
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<li><code>1 <= n <= 500</code></li>
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<li><code>0 <= quiet[i] < n</code></li>
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<li>All the values of <code>quiet</code> are <strong>unique</strong>.</li>
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<li><code>0 <= richer.length <= n * (n - 1) / 2</code></li>
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<li><code>0 <= a<sub>i</sub>, b<sub>i</sub> < n</code></li>
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<li><code>a<sub>i </sub>!= b<sub>i</sub></code></li>
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<li>All the pairs of <code>richer</code> are <strong>unique</strong>.</li>
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<li>The observations in <code>richer</code> are all logically consistent.</li>
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</ul>
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