题目见http://125.221.232.253/JudgeOnline/problem.php?id=1073http://125.221.232.253/JudgeOnline/problem.php?cid=1073&pid=4有不少方法可以解决该题,这里使用hash来解决.
hash函数很...
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其他好文 时间：
2014-05-10 01:03:19
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264
是我算法不对，还是笔记本CPU太差？我优化了两次，还是花了三四个小时来得到结果。在输出上加1就是最终结果。The
sum of the primes below 10 is 2 + 3 + 5 + 7 = 17.Find the sum of all the primes
below two mil...
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其他好文 时间：
2014-05-09 16:20:08
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295
Edge
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)
Total Submission(s): 1886 Accepted Submission(s): 1212
Problem Description
For products that are...
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其他好文 时间：
2014-05-09 15:15:36
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307
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Problem 2150 Fire Game
Accept: 237 Submit: 808
Time Limit: 1000 mSec Memory Limit : 32768 KB
Problem Description
Fat brother and Maze are playing a kind of special (hent...
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其他好文 时间：
2014-05-09 14:08:37
阅读次数：
502
Path Sum IGiven a binary tree and a sum,
determine if the tree has a root-to-leaf path such that adding up all the values
along the path equals the gi...
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其他好文 时间：
2014-05-09 13:21:59
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320
题目如下：
Problem D: ShellSort
He made each turtle stand on another one's back
And he piled them all up in a nine-turtle stack.
And then Yertle climbed up. He sat down on the pile.
What a wonderful v...
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其他好文 时间：
2014-05-09 06:20:44
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396
Area2
Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)
Total Submission(s): 1197 Accepted Submission(s): 278
Problem Description
小白最近又被空军特招为飞行员，参与一项实战演习。演...
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其他好文 时间：
2014-05-09 06:19:43
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383
畅通工程续
Time Limit: 3000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)
Total Submission(s): 24979 Accepted Submission(s): 8900
Problem Description
某省自从实行了很多年的畅通工程计划后，...
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其他好文 时间：
2014-05-09 06:12:04
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357
The ? 1 ? 2 ? ... ? n = k problem
The problem
Given the following formula, one can set operators '+' or '-' instead of each '?', in order to obtain a given k
? 1 ? 2 ? ... ? n =...
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其他好文 时间：
2014-05-09 06:10:40
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285
Anniversary party
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)
Total Submission(s): 4310 Accepted Submission(s): 1976
Problem Description
There is...
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其他好文 时间：
2014-05-09 06:08:50
阅读次数：
305
