The kth great number Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65768/65768 K (Java/Others)Total Submission(s): 9407    Accepted Submission(s): 3752 Problem Description Xiao Ming and Xiao Bao are playing a simple Numbers game. In a round…

The kth great number Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65768/65768 K (Java/Others)Total Submission(s): 8881    Accepted Submission(s): 3518 Problem Description Xiao Ming and Xiao Bao are playing a simple Numbers game. In a round…

The kth great number Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65768/65768 K (Java/Others)Total Submission(s): 5049    Accepted Submission(s): 2069 Problem Description Xiao Ming and Xiao Bao are playing a simple Numbers game. In a round…

Single Number: 1. Given an array of integers, every element appears twice except for one. Find that single one. Note:Your algorithm should have a linear runtime complexity. Could you implement it without using extra memory? 代码: class Solution { publi…

1019 General Palindromic Number(20 分) A number that will be the same when it is written forwards or backwards is known as a Palindromic Number. For example, 1234321 is a palindromic number. All single digit numbers are palindromic numbers. Although p…

Python 数字数据类型用于存储数值. 数据类型是不允许改变的,这就意味着如果改变数字数据类型得值,将重新分配内存空间. 以下实例在变量赋值时 Number 对象将被创建: var1 = 1 var2 = 10 您也可以使用del语句删除一些数字对象的引用. del语句的语法是: del var1[,var2[,var3[....,varN]]]] 您可以通过使用del语句删除单个或多个对象的引用,例如: del var del var_a, var_b 像大多数语言 一样,数值类型的赋值和计…

The Luckiest number Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 1163    Accepted Submission(s): 363 Problem Description Chinese people think of '8' as the lucky digit. Bob also likes digit '…

题目: https://www.lydsy.com/JudgeOnline/problem.php?id=3000 题解: 首先n很大,O(n)跑不过,那么就要用一些高端 而且没听过 的东西——stirling公式 shirling公式:   n!≍√(2πn)*(n/e)^n 这个公式对于n很大的解还是有很高的准确度的,但是对于n比较小的情况就会有误差. 所以对于n很小就暴力. 注意用log的一堆公式: lg(a*b)=lg(a)+lg(b):lg(a/b)=lg(a)-lg(b); lg (…

时间限制:1 秒 内存限制:32 兆 特殊判题:否 提交:5278 解决:2180 题目描述: Output the k-th prime number. 输入: k≤10000 输出: The k-th prime number. 样例输入: 3 7 样例输出: 5 17 来源: 2008年上海交通大学计算机研究生机试真题 思路: 求质数要注意时间复杂度,只需要搜到sqrt(n)即可判断是否为质数. 另外如果多次求解,可以预先存数组,这样避免多次求解. 代码: #include <stdio.…

题意:要求构造一个1-n的排列,使得它的LIS+LDS最小 n<=1e5 思路:一个百度之星时候从LYY处听来的结论:1-n随机排列的LIS期望是根号级别的 考虑将LIS与LDS都构造成根号级别 分块,块内增(减),块间减(增) #include<cstdio> #include<cstring> #include<string> #include<cmath> #include<iostream> #include<algorith…