我是把它分层来求的,也就是说第一层是1,第二层是12,第三层是123......你们该懂的!! #include <iostream>#include <cmath>using namespace std;int main (void){    int k,n,ss[10]={0,1,2,3,4,5,6,7,8,9}; //归根结底是在123456789里面取    double a,b,c,d,e,f;    cin>>k;    while(k--&&…

find the nth digit Time Limit: 1000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 9836    Accepted Submission(s): 2881 Problem Description 假设:S1 = 1S2 = 12S3 = 123S4 = 1234.........S9 = 123456789S10 = 12345678…

find the nth digit Time Limit: 1000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 7403    Accepted Submission(s): 2120 Problem Description 假设:S1 = 1S2 = 12S3 = 123S4 = 1234.........S9 = 123456789S10 = 12345678…

二分. #include <stdio.h> #include <math.h> int main() { int case_n; double n, tmp, l, r; int m; scanf("%d", &case_n); while (case_n--) { scanf("%lf", &n); tmp = sqrt(n+n); tmp = ceil(tmp); l = (tmp*tmp-tmp)/; r = (tmp…

题目连接:http://acm.hdu.edu.cn/showproblem.php?pid=1597 find the nth digit Time Limit: 1000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 9517    Accepted Submission(s): 2757 Problem Description 假设:S1 = 1S2 = 12S3…

find the nth digit Time Limit: 1000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 14416    Accepted Submission(s): 4444 Problem Description 假设: S1 = 1 S2 = 12 S3 = 123 S4 = 1234 ......... S9 = 123456789 S10 =…

Problem Description 假设:S1 = 1S2 = 12S3 = 123S4 = 1234.........S9 = 123456789S10 = 1234567891S11 = 12345678912............S18 = 123456789123456789..................现在我们把所有的串连接起来S = 1121231234.......123456789123456789112345678912.........那么你能告诉我在S串中的第N…

杭电ACM分类: 1001 整数求和 水题1002 C语言实验题——两个数比较 水题1003 1.2.3.4.5... 简单题1004 渊子赛马 排序+贪心的方法归并1005 Hero In Maze 广度搜索1006 Redraiment猜想 数论:容斥定理1007 童年生活二三事 递推题1008 University 简单hash1009 目标柏林 简单模拟题1010 Rails 模拟题(堆栈)1011 Box of Bricks 简单题1012 IMMEDIATE DECODABILITY…

想參加全国软件设计大赛C/C++语言组的同学,假设前一篇<C和指针课后练习题总结>没看完的,请先看完而且依照上面的训练做完,然后做以下的训练. 传送门:http://blog.csdn.net/liuqiyao_01/article/details/8477666 杭电acm阶段之理工大版 [671原创,欢迎转载] 下面题均为杭电acm网页的题号 首页http://acm.hdu.edu.cn/ 题库入口http://acm.hdu.edu.cn/listproblem.php?vol=1 帮…

Robberies 点击打开链接 背包;第一次做的时候把概率当做背包(放大100000倍化为整数):在此范围内最多能抢多少钱  最脑残的是把总的概率以为是抢N家银行的概率之和- 把状态转移方程写成了f[j]=max{f[j],f[j-q[i].v]+q[i].money}(f[j]表示在概率j之下能抢的大洋);  正确的方程是:f[j]=max(f[j],f[j-q[i].money]*q[i].v)  当中,f[j]表示抢j块大洋的最大的逃脱概率,条件是f[j-q[i].money]可达,也就…