Given an infinite number of quarters (25 cents),
dimes (10 cents), nickels (5 cents) and pennies (1 cent), find how many ways to
represent n cents.思路：...
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其他好文 时间：
2014-06-09 20:04:56
阅读次数：
238
【题目】
Given an array with n objects colored red, white or blue, sort them so that objects of the same color are adjacent, with the colors in the order red, white and blue.
Here, we will use the integers 0, 1, and 2 to represent the color red, white, and...
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其他好文 时间：
2014-06-07 01:17:49
阅读次数：
269
Given a digit string, return all possible
letter combinations that the number could represent.A mapping of digit to
letters (just like on the telephon...
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其他好文 时间：
2014-06-06 17:50:38
阅读次数：
284
Given a binary tree containing digits
from0-9only, each root-to-leaf path could represent a number.An example is the
root-to-leaf path1->2->3which rep...
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其他好文 时间：
2014-06-06 12:38:42
阅读次数：
255
Given a strings1, we may represent it as a
binary tree by partitioning it to two non-empty substrings recursively.Below is
one possible representation...
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其他好文 时间：
2014-06-04 20:11:38
阅读次数：
303
【题目】
Given a string s1, we may represent it as a binary tree by partitioning it to two non-empty substrings recursively.
Below is one possible representation of s1 = "great":
great
/ gr eat
/ \ / g r e at
/ ...
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其他好文 时间：
2014-06-01 09:41:05
阅读次数：
196
Given a binary tree containing digits
from0-9only, each root-to-leaf path could represent a number.An example is the
root-to-leaf path1->2->3which rep...
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其他好文 时间：
2014-05-30 16:32:52
阅读次数：
226
Given a strings1, we may represent it as a
binary tree by partitioning it to two non-empty substrings recursively.Below is
one possible representation...
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其他好文 时间：
2014-05-26 11:24:36
阅读次数：
214
题目一：
Given a binary tree containing digits from 0-9 only, each root-to-leaf
path could represent a number.
An example is the root-to-leaf path 1->2->3 which represents the number 123.
Fin...
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其他好文 时间：
2014-05-26 04:06:41
阅读次数：
248
【题目】
Given a digit string, return all possible letter combinations that the number could represent.
A mapping of digit to letters (just like on the telephone buttons) is given below.
Input:Digit string "23"
Output: ["ad", "ae", "af", "bd", "be", "bf",...
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其他好文 时间：
2014-05-18 07:30:12
阅读次数：
340
