B. Jamie and Binary Sequence (changed after round) time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Jamie is preparing a Codeforces round. He has got an idea for a problem, but does not kno…

[链接] 我是链接,点我呀:) [题意] 在这里输入题意 [题解] 找比n-1大的最小的素数x 1-2,2-3..(n-2)-(n-1)长度都为1 然后(n-1)-n长度为(x-(n-2)) 然后其他边长度都设为x+1就好了. 这样就能满足题意了. [代码] #include <bits/stdc++.h> #define ll long long using namespace std; int n,m,ma; bool is(int x){ if (x<2) return false…

[链接] 我是链接,点我呀:) [题意] 在这里输入题意 [题解] 把n分解成二进制的形式. n=2^a0+2^a1+...+2^a[q-1] 则固定就是长度为q的序列. 要想扩展为长为k的序列. 可以把2^x转化为2^(x-1)+2^(x-1)的形式. 这样序列的长度就+1了 它要求max{ai}最小 那么我们可以枚举ai的最大值是什么->i (递减着枚举) 然后比i大的ai都换成两个ai-1的形式. 然后看看序列的长度是否小于等于k; 如果小于k的话. 就把min{ai}分解成两个min{a…

[链接] 我是链接,点我呀:) [题意] 在这里输入题意 [题解] 暴力往前走x分钟就好. 直到出现7为止. [代码] #include <bits/stdc++.h> using namespace std; int hh,mm,x,cnt; bool find7(){ if (hh%10==7 || (hh/10)==7) return true; if (mm%10==7 || (mm/10)==7) return true; return false; } int main(){ #i…

Codeforces Round #366 (Div. 2) A I hate that I love that I hate it水题 #I hate that I love that I hate it n = int(raw_input()) s = "" a = ["I hate that ","I love that ", "I hate it","I love it"] for i in ran…

Codeforces Round #354 (Div. 2) Problems     # Name     A Nicholas and Permutation standard input/output 1 s, 256 MB    x3384 B Pyramid of Glasses standard input/output 1 s, 256 MB    x1462 C Vasya and String standard input/output 1 s, 256 MB    x1393…

直达–>Codeforces Round #368 (Div. 2) A Brain’s Photos 给你一个NxM的矩阵,一个字母代表一种颜色,如果有”C”,”M”,”Y”三种中任意一种就输出”#Color”,如果只有”G”,”B”,”W”就输出”#Black&White”. #include <cstdio> #include <cstring> using namespace std; const int maxn = 200; const int INF =…

 cf之路,1,Codeforces Round #345 (Div. 2) ps:昨天第一次参加cf比赛,比赛之前为了熟悉下cf比赛题目的难度.所以做了round#345连试试水的深浅.....       其实这个应该是昨天就写完的,不过没时间了,就留到了今天.. 地址:http://codeforces.com/contest/651/problem/A A. Joysticks time limit per test 1 second memory limit per test 256…

Codeforces Round #279 (Div. 2) 做得我都变绿了! Problems     # Name     A Team Olympiad standard input/output 1 s, 256 MB  x2377 B Queue standard input/output 2 s, 256 MB  x1250 C Hacking Cypher standard input/output 1 s, 256 MB  x740 D Chocolate standard in…

Codeforces Round #262 (Div. 2) 1003 C. Present time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Little beaver is a beginner programmer, so informatics is his favorite subject. Soon his info…