摘要：
You are given a large integer represented as an integer array digits, where each digits[i] is the ith digit of the integer. The digits are ordered fro 阅读全文
posted @ 2014-11-06 17:01
Grandyang
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摘要：
You are climbing a staircase. It takes n steps to reach the top. Each time you can either climb 1 or 2 steps. In how many distinct ways can you climb 阅读全文
posted @ 2014-11-06 16:09
Grandyang
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