time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output Do you know the story about the three musketeers? Anyway, you must help them now. Richelimakieu is a cardinal in the city of Bearis. He found th…
题目链接 可以发现 十进制4 对应 二进制100 十进制16 对应 二进制10000 十进制64 对应 二进制1000000 可以发现每多两个零,4的次幂就增加1. 用string读入题目给定的二进制数字,求出其长len,当len为奇数时,第一位为1,后面的位数如果都为0,则输出len,如果有一个不为0,则输出len+1: 当len为偶数时,则输出len.(之所以这样输出是因为题目给定4的次幂是从0开始的) #include<iostream> #include<string> #…
题目链接: http://codeforces.com/gym/100526 http://acm.hunnu.edu.cn/online/?action=problem&type=show&id=11674&courseid=0 题目大意: N个学生M道题(1<=N<=12,1<=M<=30),每道题只有正误两种选项(0 1),每个学生的答题情况和正确题数已知,求标准答案可能有多少种. 如果标准答案只有一种则输出标准答案,否则输出解的个数. 题目思路: […
time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output People do many crazy things to stand out in a crowd. Some of them dance, some learn by heart rules of Russian language, some try to become a…
time limit per test4 seconds memory limit per test256 megabytes inputstandard input outputstandard output All our characters have hobbies. The same is true for Fedor. He enjoys shopping in the neighboring supermarket. The goods in the supermarket hav…
time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output Petr wants to make a calendar for current month. For this purpose he draws a table in which columns correspond to weeks (a week is seven consequ…
time limit per test3 seconds memory limit per test256 megabytes inputstandard input outputstandard output A string t is called nice if a string "2017" occurs in t as a subsequence but a string "2016" doesn't occur in t as a subsequence…
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 test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output Due to the increase in the number of students of Berland State University it was decided to equip a new computer room. You were given the task o…
[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…