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Acdream 1114 Number theory 莫比乌斯反演
http://acdream.info/problem?pid=1114题目大意,给你一个序列a,求出这个序列中互质数的有多少对。其中所有的整数的都小于等于222222。f(d) 为 gcd 恰好为 d 的数的对数, F(d) 为 gcd 为 d 的倍数的对数, μ(d) 表示莫比乌斯函数F(d) ...
分类:其他好文   时间:2014-08-14 23:12:16    阅读次数:322
CSU 1060
1060: Nearest SequenceTime Limit:1 SecMemory Limit:64 MBSubmit:370Solved:118[Submit][Status][Web Board]Description Do you remember the "Nearest Number...
分类:其他好文   时间:2014-08-14 23:09:26    阅读次数:211
HDU-4952 Number Transformation
http://acm.hdu.edu.cn/showproblem.php?pid=4952Number TransformationTime Limit: 2000/1000 MS (Java/Others)Memory Limit: 65536/65536 K (Java/Others)Tota...
分类:其他好文   时间:2014-08-14 23:08:56    阅读次数:178
HDU 4952 Number Transformation 规律题
打表可以知道到后面增量都一样了,, 推论就是  i 和 i+1 互质 #include #include #include #include using namespace std; typedef long long ll; const ll mx = 120000; int main() { int cas = 0; ll x, k, y, dis, i;...
分类:其他好文   时间:2014-08-14 20:45:50    阅读次数:173
hdu4952Number Transformation (找规律)
Number Transformation Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 76 Accepted Submission(s): 28 Problem Description Teacher Mai has an...
分类:其他好文   时间:2014-08-14 20:45:29    阅读次数:146
HDU - 4952 Number Transformation
Problem Description Teacher Mai has an integer x. He does the following operations k times. In the i-th operation, x becomes the least integer no less than x, which is the multiple of i. He wan...
分类:其他好文   时间:2014-08-14 20:39:59    阅读次数:256
hdu4952 Number Transformation(数学题 | 找规律)
hdu4952 Number Transformation(数学题 | 找规律)...
分类:其他好文   时间:2014-08-14 20:35:59    阅读次数:230
ACM HDU 1755 -- A Number Puzzle
A Number PuzzleTime Limit: 3000/1000 MS (Java/Others)Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 938Accepted Submission(s): 276 Pro...
分类:其他好文   时间:2014-08-14 20:12:29    阅读次数:194
Number Game poj1143
DescriptionChristine and Matt are playing an exciting game they just invented: the Number Game. The rules of this game are as follows.The players take...
分类:其他好文   时间:2014-08-14 20:00:10    阅读次数:244
ROW_NUMBER()OVER(partition)的使用
select cardno,planname,ROW_NUMBER() over(partition by cardno,planname order by createtime asc) as rowfrom CardAddrBlack即:将cardno,planname看作一个分组,以他们内部的...
分类:其他好文   时间:2014-08-14 19:58:59    阅读次数:140
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