Given a set of n DNA samples, where each sample is a string containing characters from {A, C, G, T}, we are trying to find a subset of samples in the ...
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其他好文 时间:
2018-09-06 14:47:45
阅读次数:
208
题目链接: "HDU 1501" Description Given three strings, you are to determine whether the third string can be formed by combining the characters in the first ...
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其他好文 时间:
2018-09-05 21:57:56
阅读次数:
196
On a broken keyboard, some of the keys are worn out. So when you type some sentences, the characters corresponding to those keys will not appear on sc ...
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其他好文 时间:
2018-09-05 13:54:32
阅读次数:
157
今天带来一个简单的线性结构上的DP,与上次的照明系统(UVA11400)是同一种类型题,便于大家类比、总结、理解,但难度上降低了。 We say a sequence of characters is a palindrome if it is the same written forwards a ...
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其他好文 时间:
2018-09-02 20:30:51
阅读次数:
182
自己方法复杂度比较高 可以O(n)的方法,遍历一遍 用两个指针记录maxstring的位置 然后遇到跟hashmap里重复的就更新指针https://leetcode.com/problems/longest-substring-without-repeating-characters/discus ...
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其他好文 时间:
2018-08-28 10:33:54
阅读次数:
113
http://www.fpdf.org/ https://github.com/Setasign/FPDF https://www.ntaso.com/fpdf-and-chinese-characters/ ...
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Web程序 时间:
2018-08-27 21:40:35
阅读次数:
115
Given a string containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid. An input string is valid if: No ...
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其他好文 时间:
2018-08-25 11:42:25
阅读次数:
145
Given a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases. Note: For the purpose of this problem, w ...
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其他好文 时间:
2018-08-24 13:22:31
阅读次数:
118
由getline的定义可以知道, getline返回的是一个输入流, 正常情况下输入流都是正确的, 因而 是一个死循环无法跳出; Get line from stream into string Extracts characters from is and stores them into str ...
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编程语言 时间:
2018-08-24 10:46:56
阅读次数:
158
On a broken keyboard, some of the keys are always stucked. So when you type some sentences, the characters corresponding to those keys will appear rep ...
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其他好文 时间:
2018-08-19 18:26:26
阅读次数:
222