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Triangle
Given a triangle, find the minimum path sum from top to bottom. Each step you may move to adjacent numbers on the row below.For example, given the fol...
分类:其他好文   时间:2014-08-15 23:47:19    阅读次数:302
表碎片
SQL>SELECTTABLE_NAME,(BLOCKS*8192/1024/1024)-(NUM_ROWS*AVG_ROW_LEN/1024/1024)"DatalowerthanHWMinMB"FROMUSER_TABLESWHEREtable_name='T1';TABLE_NAMEDatal...
分类:其他好文   时间:2014-08-15 17:46:29    阅读次数:230
使用双向十字链表(或Dancing Links)解数独游戏
#include #include #include using namespace std; struct Data { void assign(int x,int y,int z) { row=x; col=y; val=z; } int row,col,val; } data[730]; struct Node ...
分类:其他好文   时间:2014-08-15 16:02:29    阅读次数:1129
LeetCode "Valid Sudoku"
Here another memory for speed implementation:class Solution {public: bool isValidSudoku(vector > &board) { size_t row_cnt = board.size(); ...
分类:其他好文   时间:2014-08-15 14:18:48    阅读次数:194
UVA - 12036 Stable Grid
Description  Stable Grid  Consider a grid of size n x n where each cell contains a number. Let's call a grid stable if we canrearrange the numbers of each row so that every col...
分类:其他好文   时间:2014-08-15 10:42:58    阅读次数:190
mysql binlog row格式查看
mysql binlog row格式...
分类:数据库   时间:2014-08-14 23:58:26    阅读次数:531
Pascal's Triangle II
Given an index k, return the kth row of the Pascal's triangle.For example, given k = 3,Return [1,3,3,1].Note:Could you optimize your algorithm to use ...
分类:其他好文   时间:2014-08-14 23:44:26    阅读次数:323
Triangle
Given a triangle, find the minimum path sum from top to bottom. Each step you may move to adjacent numbers on the row below.For example, given the fol...
分类:其他好文   时间:2014-08-14 23:26:46    阅读次数:219
mysql性能调试工具profile
我一直在找mysql中有没有类似Oracle 10046类似的工具,可以看到SQL执行的时间消耗在哪里。终于在网上找到一个profile,使用一些,觉得不错。 mysql> select version(); +-----------+ | version() | +-----------+ | 5.6.16    | +-----------+ 1 row in set (0.00...
分类:数据库   时间:2014-08-14 20:36:29    阅读次数:261
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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