摘要： Given an array of integers, every element appears twice except for one. Find that single one. Note: Your algorithm should have a linear runtime comple 阅读全文

摘要： The girl sitting there giggled. I'd noticed that his eyes were black — coal black. 那个坐在那里的女孩笑着。我注意到她的眼睛是很色的--炭黑色的。 Mr. Banner signed my slip and hande 阅读全文