摘要：
Given an array of integers, 1 ≤ a[i] ≤ n (n = size of array), some elements appear twice and others appear once. Find all the elements that appear twi 阅读全文
posted @ 2017-07-26 15:26
无惧风云
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摘要：
Given a binary tree, find the leftmost value in the last row of the tree. Example 1: Example 2: 阅读全文
posted @ 2017-07-26 09:25
无惧风云
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摘要：
Given a string, your task is to count how many palindromic substrings in this string. The substrings with different start indexes or end indexes are c 阅读全文
posted @ 2017-07-26 09:05
无惧风云
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