Given two wordsword1andword2, find the minimum
number of steps required to convertword1toword2. (each operation is counted as 1
step.)You have the fol...
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其他好文 时间：
2014-05-10 01:09:28
阅读次数：
325
Given two words word1 and word2, find the
minimum number of steps required to convert word1 to word2. (each operation is
counted as 1 step.)You have t...
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其他好文 时间：
2014-05-09 19:09:35
阅读次数：
318
Given an array of non-negative integers, you
are initially positioned at the first index of the array.Each element in the
array represents your maximu...
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其他好文 时间：
2014-05-05 10:05:58
阅读次数：
300
Birthday Candles
The chef is preparing a birthday cake for one of his guests,
and his decided to write the age of the guest in candles on the cake.
There are 10 types of candles, one for each o...
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其他好文 时间：
2014-05-04 18:46:55
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416
题目
Evaluate the value of an arithmetic expression in Reverse Polish Notation.
Valid operators are +, -, *, /.
Each operand may be an integer or another expression.
Some examples:
["2...
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其他好文 时间：
2014-05-04 18:34:44
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272
题目描述：
Hzz loves aeroplane chess very much. The chess map contains N+1 grids labeled from 0 to N. Hzz starts at grid 0. For each step he throws a dice(a dice have six faces with equal probability to...
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其他好文 时间：
2014-05-04 09:18:42
阅读次数：
321
Input
t – the number of numbers in list, then t lines follow [t
Each line contains one integer: N [0 N
Output
Output given numbers in non decreasing order.
Example
Input:
5
5
3
...
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其他好文 时间：
2014-05-04 00:04:09
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376
You are given a string, S, and a list of words, L, that are all of the same length. Find all starting indices of substring(s) in S that is a concatenation of each word in L exactly once and without an...
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其他好文 时间：
2014-05-03 21:35:49
阅读次数：
310
Valera wanted to prepare a Codesecrof round. He's already got one problem and he wants to set a time limit (TL) on it.
Valera has written n correct solutions. For each correct solution, he knows it...
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其他好文 时间：
2014-05-03 16:53:51
阅读次数：
364
Chef wrote some text on a piece of paper and now he wants to know how many holes are in the text. What is a hole? If you think of the paper as the plane and a letter as a curve on the plane, then each...
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其他好文 时间：
2014-05-03 15:49:18
阅读次数：
412
