[题目链接]:http://codeforces.com/contest/527/problem/B [题意] 给你两个字符串; 允许你交换一个字符串的两个字符一次: 问你这两个字符串最少会有多少个位置上的字符不同 [题解] 考虑一次交换能够造成的结果 ->不同的字符个数减少1 ->不同的字符个数减少2 先考虑减少1 记录第一个字符串哪些字符和第二个字符串的不一样记录下来 然后扫描第二个字符串的每个字符,找到不同字符的位置,看看第二个字符串那个位置的字符有没有在第一个字符串里面出现过(刚才有记…

Error Correct System Time Limit:2000MS     Memory Limit:262144KB     64bit IO Format:%I64d & %I64u Submit Status Practice CodeForces 527B Description Ford Prefect got a job as a web developer for a small company that makes towels. His current work ta…

B. Error Correct System time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Ford Prefect got a job as a web developer for a small company that makes towels. His current work task is to create…

 Error Correct System Time Limit:2000MS     Memory Limit:262144KB     64bit IO Format:%I64d & %I64u Submit Status Practice CodeForces 527B Description Ford Prefect got a job as a web developer for a small company that makes towels. His current work t…

[codeforces 415D]Mashmokh and ACM 题意:美丽数列定义:对于数列中的每一个i都满足:arr[i+1]%arr[i]==0 输入n,k(1<=n,k<=2000),问满足[数列长度是k && 数列中每一个元素arr[i]在1~n之间 && 数列中元素可以重复]的数列有多少个?结果对10^9+7取余 解题思路:dp[i][j]表示长度是j,最后一位是i的种数 if(kk%i==0) dp[kk][j+1]+=dp[i][j] #inc…

Error Correct System time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Ford Prefect got a job as a web developer for a small company that makes towels. His current work task is to create a s…

http://my.oschina.net/renhc/blog/54582 [C/C++]Linux下system()函数引发的错误 恋恋美食  恋恋美食 发布时间: 2012/04/21 11:33 阅读: 11393 收藏: 21 点赞: 8 评论: 4 今天,一个运行了近一年的程序突然挂掉了,问题定位到是system()函数出的问题,关于该函数的简单使用在我上篇文章做过介绍: http://my.oschina.net/renhc/blog/53580 先看一下问题 简单封装了一下sys…

B. Error Correct System time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Ford Prefect got a job as a web developer for a small company that makes towels. His current work task is to create…

time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output A magic island Geraldion, where Gerald lives, has its own currency system. It uses banknotes of several values. But the problem is, the system i…

[题目链接]:http://codeforces.com/problemset/problem/22/C [题意] 给你n个点; 要求你构造一个含m条边的无向图; 使得任意两点之间都联通; 同时,要求这张图; 在删掉第x个节点之后,会有一些点之间变成不联通的; (两点之间最多连一条边) [题解] 把v和某一个点x连在一起; 然后除了这两个点之外的其他n-2个点; 先每一个点都和v连一条边; 保证联通; 然后如果边数还有剩余; 就在那剩余的n-2个点之间一直连边,直到练成一个团(n-2个点的完全图…

time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output Dasha logged into the system and began to solve problems. One of them is as follows: Given two sequences a and b of length n each you need to wr…

time limit per test1 second memory limit per test256 megabytes inputstandard input outputstandard output Pasha decided to invite his friends to a tea party. For that occasion, he has a large teapot with the capacity of w milliliters and 2n tea cups,…

time limit per test1 second memory limit per test256 megabytes inputstandard input outputstandard output Kleofáš is participating in an n-thlon - a tournament consisting of n different competitions in n different disciplines (numbered 1 through n). T…

time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output This is an interactive problem. In the interaction section below you will find the information about flushing the output. The New Year tree of h…

time limit per test1 second memory limit per test256 megabytes inputstandard input outputstandard output There is a polyline going through points (0, 0) – (x, x) – (2x, 0) – (3x, x) – (4x, 0) – - - (2kx, 0) – (2kx + x, x) – -. We know that the polyli…

time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output Ari the monster is not an ordinary monster. She is the hidden identity of Super M, the Byteforces' superhero. Byteforces is a country that consi…

[题目链接]:http://codeforces.com/problemset/problem/190/C [题意] 让你根据去掉标点符号的; pair 以及 int这两种类型; 确定出一种类型; 使得它能够存得下n个int; 输入数据保证有n个int; [题解] 每一个f()调用以后,就要输入一种类型; 如果没有输入进来;则,无解; 输入进来了; 则根据这个输入进来的类型; 如果是pair,则需要再输入两个类型,调用两次f(); 答案字符串加上那些被省略的标点; 如果输入完一个类型之后,还有输…

time limit per test1 second memory limit per test256 megabytes inputstandard input outputstandard output After seeing the "ALL YOUR BASE ARE BELONG TO US" meme for the first time, numbers X and Y realised that they have different bases, which co…

time limit per test1 second memory limit per test256 megabytes inputstandard input outputstandard output Kevin Sun has just finished competing in Codeforces Round #334! The round was 120 minutes long and featured five problems with maximum point valu…

time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output Today on a lecture about strings Gerald learned a new definition of string equivalency. Two strings a and b of equal length are called equivalen…

time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output PolandBall is a young, clever Ball. He is interested in prime numbers. He has stated a following hypothesis: "There exists such a positive integ…

time limit per test1 second memory limit per test256 megabytes inputstandard input outputstandard output Nothing is eternal in the world, Kostya understood it on the 7-th of January when he saw partially dead four-color garland. Now he has a goal to…

time limit per test1 second memory limit per test256 megabytes inputstandard input outputstandard output PolandBall lives in a forest with his family. There are some trees in the forest. Trees are undirected acyclic graphs with k vertices and k - 1 e…

time limit per test3 seconds memory limit per test256 megabytes inputstandard input outputstandard output Bogdan has a birthday today and mom gave him a tree consisting of n vertecies. For every edge of the tree i, some number xi was written on it. I…

time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output Student Vladislav came to his programming exam completely unprepared as usual. He got a question about some strange algorithm on a graph - somet…

time limit per test4 seconds memory limit per test256 megabytes inputstandard input outputstandard output Mahmoud wants to write a new dictionary that contains n words and relations between them. There are two types of relations: synonymy (i. e. the…

time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output On her way to programming school tiger Dasha faced her first test - a huge staircase! The steps were numbered from one to infinity. As we know,…

time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output Vika has an infinite sheet of squared paper. Initially all squares are white. She introduced a two-dimensional coordinate system on this sheet a…

转载请注明: http://blog.csdn.net/jason_asia/article/details/36240815 1.1.1. ERROR 1665 (HY000) [环境的叙述性说明] msyql5.6.14 [报错信息] 运行SQL语句的时候报错: ERROR 1665 (HY000): Cannot executestatement: impossible to write to binary log since BINLOG_FORMAT = STATEMENTand at…

1.1.1. ERROR 1418 [环境的叙述性说明] mysql5.0.67 [问题叙述性说明] 当它来到创建存储过程ERROR 1418一个错误. # 创建函数SQL声明 CREATE FUNCTION `xxx`( num01 int ) RETURNSint(11) begin declare mm  int default 0; if  (xx) then set mm = num01*num01*10; elseif  xxx then set mm = 10; else case…