题目链接:传送门 HDU 6015-6018 解题报告:传送门 HDU6015 Skip the Class  Accepts: 678  Submissions: 1285  Time Limit: 2000/1000 MS (Java/Others)  Memory Limit: 65536/65536 K (Java/Others) 问题描述 终于又开学啦.呃喵最喜欢的就是开学了,因为这样她又可以愉快地翘课了(啊?) 呃喵接下来有n节课程需要上(换句话说,可以翘.) 每节课程有相应的课程类…

Bestcoder#5 1002 Poor MitsuiTime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 336    Accepted Submission(s): 70 Problem Description Because of the mess Mitsui have made, (not too long ago, Mitsui,…

HDU 5666 Segment 题意:给你条斜率为-1,常数项为q(q为质数)的直线,连接原点与直线上整数格点,问你在有多少个格点在形成的无数个三角形内,而不在线段上,结果对P取模. 思路:bestcoder题解上有思路,一条以(0,0)为起点,(x,y)为终点的线段上格点的个数(不包含端点时),一定是gcd(x,y)−1,题目由于p为质数,所以所有线段上都没有格点,需要注意的是p为质数,情况就很少了,然后就是数据太大的问题,改一改快速幂就可以了. #include <cstdio> #in…

Bestcoder#5 1003 Poor RukawTime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 24    Accepted Submission(s): 11 Problem Description Last time, Hanamichi lost the basketball battle between him and Ru…

A题 Oracle http://bestcoder.hdu.edu.cn/contests/contest_chineseproblem.php?cid=703&pid=1001 大数相加: rec[p]=; rec[]+=k; ;i<p;i++) ) rec[i] = rec[i] - ,rec[i+] ++ ; ) printf("%d",rec[p]); #include <cstdio> #include <cstring> ; int…

A题 Aaronson http://bestcoder.hdu.edu.cn/contests/contest_chineseproblem.php?cid=718&pid=1001 感觉一开始写的这个不好,太冗余了. #include <cstdio> int main() { int n,m; int t; while(~scanf("%d",&t)) { while(t--) { scanf("%d%d",&n,&…

1.BestCoder Round #89 2.总结:4个题,只能做A.B,全都靠hack上分.. 01  HDU 5944   水 1.题意:一个字符串,求有多少组字符y,r,x的下标能组成等比数列. 2.总结:有个坑,y,r,x顺序组公比q>1,也可反着来x,r,y顺序组. #include<iostream> #include<cstring> #include<cmath> #include<queue> #include<algorit…

BestCoder Round #90 本次至少暴露出三个知识点爆炸.... A. zz题 按题意copy  Init函数 然后统计就ok B. 博弈 题  不懂  推了半天的SG.....  结果这个题.... C 数据结构题   我写了半个小时分块   然后发现     改的是颜色.... 我的天  炸炸炸 D. 没看懂题目要干啥.....  官方题解要搞死小圆…

BestCoder Round #7 Start Time : 2014-08-31 19:00:00    End Time : 2014-08-31 21:00:00Contest Type : Register Public   Contest Status : Ended Current Server Time : 2014-08-31 21:12:12 Solved Pro.ID Title Ratio(Accepted / Submitted)   1001 Little Pony…

Time Limit: 3000/1500 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 354    Accepted Submission(s): 100 Problem Description ZYB has a tree with N nodes,now he wants you to solve the numbers of nodes distanced no m…