摘要:
Implement the following operations of a stack using queues. (Easy) push(x) -- Push element x onto stack. pop() -- Removes the element on top of the st 阅读全文
posted @ 2016-12-08 21:32
wangxiaobao1114
阅读(217)
评论(0)
推荐(0)
摘要:
Evaluate the value of an arithmetic expression in Reverse Polish Notation. (Medium) Valid operators are +, -, *, /. Each operand may be an integer or 阅读全文
posted @ 2016-12-08 21:27
wangxiaobao1114
阅读(317)
评论(0)
推荐(0)

浙公网安备 33010602011771号