摘要:
Reverse digits of an integer.Example1:x = 123, return 321Example2:x = -123, return -321public class Solution { public int reverse(int x) { ... 阅读全文
摘要:
Given a string, find the length of the longest substring without repeating characters. For example, the longest substring without repeating letters fo... 阅读全文
摘要:
时间限制:10000ms单点时限:1000ms内存限制:256MB描述Given a sequence {an}, how many non-empty sub-sequence of it is a prefix of fibonacci sequence.A sub-sequence is a ... 阅读全文
摘要:
时间限制:5000ms单点时限:1000ms内存限制:256MB描述Given a circle on a two-dimentional plane.Output theintegralpoint in or on the boundary of the circle which has the ... 阅读全文