Description In this problem, you are given an integer number s. You can transform any integer number A to another integer number B by adding x to A. This x is an integer number which is a prime factor of A (please note that 1 and A are not being cons…

Number Transformation In this problem, you are given an integer number s. You can transform any integer number A to another integer number B by adding x to A. This x is an integer number which is a prime factor of A (please note that 1 and A are not…

1141. RSA Attack Time limit: 1.0 secondMemory limit: 64 MB The RSA problem is the following: given a positive integer n that is a product of two distinct odd primes p and q, a positive integer e such that gcd(e, (p-1)*(q-1)) = 1, and an integer c, fi…

传送门:http://www.lightoj.com/volume_showproblem.php?problem=1030 Discovering Gold Time Limit: 2 second(s) Memory Limit: 32 MB Program Description You are in a cave, a long cave! The cave can be represented by a 1 x N grid. Each cell of the cave can con…

时间限制:1 秒 内存限制:32 兆 特殊判题:否 提交:939 解决:489 题目描述: Larry graduated this year and finally has a job. He's making a lot of money, but somehow never seems to have enough. Larry has decided that he needs to grab hold of his financial portfolio and solve his f…

上一次接触 project euler 还是2011年的事情,做了前三道题,后来被第四题卡住了,前面几题的代码也没有保留下来. 今天试着暴力破解了一下,代码如下: (我大概是第 172,719 个解出这道题的人) program 4 A palindromic number reads the same both ways. The largest palindrome made from the product of two 2-digit numbers is 9009 = 91 × 99.…

When you publish your ASP.NET project to a hosting account such as GoDaddy, you may run into the issue below. This issue may occur even though your code works fine in localhost. Server Error in ‘/’ Application. . Parser Error Description: An error oc…

http://lightoj.com/volume_showproblem.php?problem=1422 做的第一道区间DP的题目,试水. 参考解题报告: http://www.cnblogs.com/ziyi--caolu/p/3236035.html http://blog.csdn.net/hcbbt/article/details/15478095 dp[i][j]为第i天到第j天要穿的最少衣服,考虑第i天,如果后面的[i+1, j]天的衣服不要管,那么dp[i][j] = dp[i…

在 GCC ARM Embedded https://launchpad.net/gcc-arm-embedded/ 上面下载了个arm-none-eabi-gcc 用cmake 编译时 #指定C交叉编译器,必须配置#或交叉编译器使用绝对地址 SET(CMAKE_C_COMPILER "/disk2/gcc-arm-none-eabi-4.8.3/bin/arm-none-eabi-gcc") #指定C++交叉编译器 SET(CMAKE_CXX_COMPILER "/disk…

今天在C代码中使用gets()时提示“warning: this program uses gets(), which is unsafe.”,然后这个程序还能运行,无聊的我开始查阅资料,为啥gets()会unsafe呢. 通过Google查阅前辈的问答,原来是这么回事. gets()这个函数只有一个参数,那就是字符缓冲区的指针,并没有指定该缓冲区的长度也就是大小.当你输入一个很长很长的字符串的时候,gets ()函数会把每一个字符都存入到栈(statck)中,因此当字符串很大的时候就会导致程序…