unordered_map可以用vector吗

unordered_map可以使用vector作为值，但不能使用vector作为键。这是因为unordered_map的键必须具有可哈希性，而vector没有定义哈希函数。而对于值，可以使用vector作为unordered_map的值。 <span class="em">1</span><span class="em">2</span><span class="em">3</span>
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