Binomial Coeffcients TimeLimit: 1000ms   Memory limit: 65536K  有疑问?点这里^_^ 题目描述 输入 输出 示例输入 1 1 10 2 954 723 示例输出 /******************* 组合数学 组合数 用 递推  :组合数公式 C[n][m] = C[n-1][m-1] + C[n-1][m] ************************/ Code: #include <iostream> #include…

Crack Mathmen TimeLimit: 1000ms   Memory limit: 65536K  有疑问?点这里^_^ 题目描述 Since mathmen take security very seriously, theycommunicate in encrypted messages. They cipher their texts in this way: for everycharacther c in the message, they replace c with…

题目描述 We know thatIvan gives Saya three problems to solve (Problem F), and this is the firstproblem. "We need a programmer to help us for some projects. If you show us that youor one of your friends is able to program, you can pass the first hurdle. I…

题目描述 We know thatif a phone number A is another phone number B's prefix, B is not able to becalled. For an example, A is 123 while B is 12345, after pressing 123, we callA, and not able to call B. Given N phone numbers, your task is to find whether t…

Description A Swiss-system tournament is a tournament which uses a non-elimination format. The first tournament of this type was a chess tournament in Zurich in 1895, hence the name "Swiss system". The tournament will be held based on following…

Description In mathematics, a square number is an integer that is the square of an integer. In other words, it is the product of some integer with itself. For example, 9 is a square number, since it can be written as 3 * 3. Given an array of distinct…

Binomial Coeffcients Time Limit: 1000MS Memory limit: 65536K 题目描述   输入   输出   示例输入 3 1 1 10 2 954 723 示例输出 1 45 3557658   #include<iostream> using namespace std; #include <string.h> int a[1020][1020]; int main() { int n,m,i,j,k; memset(a,0,siz…

Binomial Coeffcients Time Limit: 1000MS Memory limit: 65536K 题目描写叙述   输入   输出   演示样例输入 3 1 1 10 2 954 723 演示样例输出 1 45 3557658   #include<iostream> using namespace std; #include <string.h> int a[1020][1020]; int main() { int n,m,i,j,k; memset(a…

题意:两个人轮流说数字,第一个人可以说区间[1~k]中的一个,之后每次每人都可以说一个比前一个人所说数字大一点的数字,相邻两次数字只差在区间[1~k].谁先>=N,谁输.问最后是第一个人赢还是第二个人赢. 分析:必胜策略是这样的,想方设法抢到N-1,这样下一个人必然会>=N. 第一个人抢到N-1的方法,就是先说一个数字与N-1的差是k+1的整数倍. 因为在这之后另一个人无论说几,第一个人只要把数字补齐到与N-1差k+1的整数倍即可. 例如另一个人让数字增加a,那么第一个人则让数字增加k+1-a…

0x00 题目名称 签到 操作内容:   FLAG值: flag{welcome_to_qwb} 0x01 题目名称 Weclome 操作内容: 通过查看文件发现是一个bmp格式的图片文件,然后加上后缀.bmp,如图 将图片放入色道,通过变换得到flag FLAG值: QWB{W3lc0me} 0x02 题目名称 streamgame1操作内容: 密码长度不大,暴力破解得到flag     FLAG值: flag{1110101100001101011} 0x03 题目名称 web签到操作内容:…