Implement an iterator over a binary search tree (BST). Your iterator will be initialized with the root node of a BST.
Calling next() will return the next smallest number in the BST.
Note: next() and...
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其他好文 时间:
2015-04-14 13:01:30
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148
Write a SQL query to delete all duplicate email entries in a table named Person,
keeping only unique emails based on its smallest Id.
+----+------------------+
| Id | Email |
+----+-----...
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其他好文 时间:
2015-04-12 13:28:43
阅读次数:
132
Binary Search Tree Iterator
Implement an iterator over a binary search tree (BST). Your iterator will be initialized with the root node of a BST.
Calling next() will return the next smallest...
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其他好文 时间:
2015-04-11 00:03:47
阅读次数:
200
DescriptionGiven a sequence, {A1, A2, …, An} which is guaranteed A1 > A2, …, An, you are to cut it into three sub-sequences and reverse them separately to form a new one which is the smallest possible...
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编程语言 时间:
2015-04-08 16:28:10
阅读次数:
195
http://poj.org/problem?id=2718从一些数里面选择一个子集组成一个数,余下的数组成另外一个数,(数不能以0开头)问两个数的差的绝对值最小是多少!不管是奇数还是偶数,要想绝对值最小,那么两个数的位数就要尽量接近,所以每一个数的位数都是n/2,枚举这些数的全排列,然后去找这个最...
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其他好文 时间:
2015-04-08 10:26:54
阅读次数:
125
1.题目描述:点击打开链接
2.解题思路:本题利用暴力搜索法解决。
3.代码:
#define _CRT_SECURE_NO_WARNINGS
#include
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其他好文 时间:
2015-04-08 09:13:54
阅读次数:
124
Implement an iterator over a binary search tree (BST). Your iterator will be initialized with the root node of a BST.
Calling next() will return the next smallest number in the BST.
Note: next()...
分类:
其他好文 时间:
2015-04-07 13:55:03
阅读次数:
116
题目:
Implement an iterator over a binary search tree (BST). Your iterator will be initialized with the root node of a BST.Calling next() will return the next smallest number in the BST.Note: next() and...
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其他好文 时间:
2015-03-29 00:38:50
阅读次数:
201
DescriptionGiven a two-dimensional array of positive and negative integers, a sub-rectangle is any contiguous sub-array of size 1 x 1 or greater locat...
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其他好文 时间:
2015-03-28 21:34:43
阅读次数:
127