c++ std::vector 使用Erase–remove idiom刪除特定的value

wiki: Erase–remove idiomhtml 通常刪除vector中的某個值，須要遍歷整個vector找到該值的下標再erase.code 採用erase-remove方式能夠避免屢次後續元素前移htm These algorithms do not remove elements from the container, but move all elements that don't

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