LSS Time Limit: 20000/10000 MS (Java/Others) Memory Limit: 128000/64000 KB (Java/Others) SubmitStatistic Next Problem Problem Description Time flies, four years passed, colleage is over. When I am about to leave, a xuemei ask me an ACM problem, but…
Chinese Girls' Amusement Time Limit: 2000/1000MS (Java/Others)Memory Limit: 128000/64000KB (Java/Others) SubmitStatisticNext Problem Problem Description You must have heard that the Chinese culture is quite different from that of Europe or Russia. So…
A - 无耻的出题人 Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 KB (Java/Others) Submit Status Problem Description 听到X神要參加比赛,仅仅会Fibnacci数的出题人被吓得哭晕在厕所.为了防止X神AK(ALL KILL)比赛题目,无耻的出题人仅仅好在题面上做些手脚(加密).当中一道题的题目描写叙述例如以下: hjxh dwh v vxxpd…
题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1408 盐水的故事 Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 14968 Accepted Submission(s): 3645 Problem Description 挂盐水的时候,如果滴起来有规律,先是滴一滴,停一下:然后滴二…
1408. M S W O R L D 1408.MSWORLD 1408.MSWORLD 题目描述 Bessie , Farmer John 的优选牛,刚刚获得了一个牛科动物选美比赛的冠军!并得到了"世界奶牛小姐"的头衔.因此,Bessie将进行一场环球农场旅行,共N个农场(2<=N<=50,000),依次传播农场主和奶牛们之间的亲善友好.为了简单起见,世界可以看作一个二维平面,每座农场的位置用二维坐标(x,y)表示,x,y是-10,0000到10,0000的整数.没有两…
Nasty Hacks Time Limit: 3000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 3049 Accepted Submission(s): 2364 Problem Description You are the CEO of Nasty Hacks Inc., a company that creates small pieces of…
Given n non-negative integers a1, a2, ..., an, where each represents a point at coordinate (i, ai). n vertical lines are drawn such that the two endpoints of line i is at (i, ai) and (i, 0). Find two lines, which together with x-axis forms a containe…
一.mysql中的优化 where语句的优化 1.尽量避免在 where 子句中对字段进行表达式操作select id from uinfo_jifen where jifen/60 > 10000;优化后:Select id from uinfo_jifen where jifen>600000; 2.应尽量避免在where子句中对字段进行函数操作,这将导致mysql放弃使用索引 select uid from imid where datediff(create_time,'2011-11…
SCU 4437 Carries Time Limit:0MS Memory Limit:0KB 64bit IO Format:%lld & %llu Practice Description Carries frog has nn integers a1,a2,…,ana1,a2,…,an, and she wants to add them pairwise. Unfortunately, frog is somehow afraid of carries (进位).…