b***y
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catbert (mimi) 于 (Thu Apr 28 15:53:57 2005) 提到:
Hi, how to randomly pick up an element from a set/map? Thanks!
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arya (死火山下) 于 (Thu Apr 28 16:02:52 2005) 提到:
*(container.begin() + rand() * container.size() / RAND_MAX)
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catbert (mimi) 于 (Thu Apr 28 16:08:21 2005) 提到:
But performance wise it's still the same as deferencing each step, right?
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