题意:给你一串长度为n的数,这个数可以将后面的数挪到前面来,如果没有小于最开始的那个数的话就输出YES,否则输出NO 题解:如果后面有数字小于第一个数的话就肯定是NO了,这题的坑点就是如果前面很长一串都相同但是后面有一个比前面相同位置的数小的话也要输出NO,因为n是5e5,我们不可能检查每一个串,其实对于这个字符串,我们可以求出这个数的最小表示法的答案,如果这个字符串的最小表示法的第一个字符不是第一个的话就是NO了] #include <set> #include <map> #i…

题意:给你一串n个数,求出循环来看一阶差的最小字典序:数字串看成一个顺时针的环,从某一点开始顺时针循环整个环,保证字典序最小就是答案 例如给你 2 1 3 就会得到(1-2+8 注意题意负数需要加8) (3-1) (2-3+8)-> 7 2 7 答案就是2 7 7. 典型的最小表示法.线性时间内求出最小字典序. 首先复制一遍数字串在原串后面,这样从原串任意位置开始向再后n个位置就是答案.接着双指针维护,直接双指针暴力比较数字串,当出现不同数字时,就把字典序大的那个指针向后移动尽量多的位置这样可以…

HDU 4162 题意: 给一个数字串(length <= 300,000),数字由0~7构成,求出一阶差分码,然后输出与该差分码循环同构的最小字典序差分码. 思路: 第一步是将差分码求出:s[i] = (s[i] - s[i+1] + 8) % 8; 第二步是求出最小字典序的循环同构差分码,我之前没注意到字符串规模. .直接用set做,MLE+TLE... 正确的方式应该是一种O(n)的解法.即最小表示法. //关于最小表示法的证明与详述请參考最小表示法:) 最小表示法算法: 初始时,i=0,…

题意:给一个字符串,求它的最小子串,使得原串是通过它重复得到的字符串的一个子串. 思路:先求最小长度,最小循环长度可以利用kmp的next数组快速得到,求出长度后然后利用字符串最小表示法求循环节的最小表示即可. #pragma comment(linker, "/STACK:10240000") #include <map> #include <set> #include <cmath> #include <ctime> #include…

Write a program to find the n-th ugly number. Ugly numbers are positive numbers whose prime factors only include 2, 3, 5. For example, 1, 2, 3, 4, 5, 6, 8, 9, 10, 12 is the sequence of the first 10 ugly numbers. Note that 1 is typically treated as an…

Write a program to find the n-th ugly number. Ugly numbers are positive numbers whose prime factors only include 2, 3, 5. For example, 1, 2, 3, 4, 5, 6, 8, 9, 10, 12 is the sequence of the first 10 ugly numbers. Note that 1 is typically treated as an…

Ugly Number II Write a program to find the n-th ugly number. Ugly numbers are positive numbers whose prime factors only include 2, 3, 5. For example, 1, 2, 3, 4, 5, 6, 8, 9, 10, 12 is the sequence of the first 10 ugly numbers. Note that 1 is typicall…

题目: Write a program to find the nth super ugly number. Super ugly numbers are positive numbers whose all prime factors are in the given prime list primes of size k. For example, [1, 2, 4, 7, 8, 13, 14, 16, 19, 26, 28, 32] is the sequence of the first…

Super Ugly Number 最后WA没做出来. typedef long long int64; #define MAXBOUND 10000000 class Solution { public: int nthSuperUglyNumber(int n, vector<int>& primes) { bitset<MAXBOUND> bs; int64 bound = MAXBOUND; vector<int> v; bs.set(1); for (…

Question Write a program to find the n-th ugly number. Ugly numbers are positive numbers whose prime factors only include 2, 3, 5. For example, 1, 2, 3, 4, 5, 6, 8, 9, 10, 12 is the sequence of the first 10 ugly numbers. Note that 1 is typically trea…

263. Ugly Number 注意:1.小于等于0都不属于丑数 2.while循环的判断不是num >= 0, 而是能被2 .3.5整除,即能被整除才去除这些数 class Solution { public: bool isUgly(int num) { ) return false; == ) num /= ; == ) num /= ; == ) num /= ; ? true : false; } }; 264. Ugly Number II 用一个数组去存第n个前面的所有整数,然后…

Time Limit: 3000MS   Memory Limit: 10000K Total Submissions: 4901   Accepted: 2765 Description Once upon a time there was a famous actress. As you may expect, she played mostly Antique Comedies most of all. All the people loved her. But she was not i…

问题描述: Write a program to find the n-th ugly number. Ugly numbers are positive numbers whose prime factors only include 2, 3, 5. For example, 1, 2, 3, 4, 5, 6, 8, 9, 10, 12 is the sequence of the first 10 ugly numbers. Note that 1 is typically treated…

Ugly number is a number that only have factors 3, 5 and 7. Design an algorithm to find the kth number such that the only prime factors are 3, 5, and 7. The eligible numbers are like 3, 5, 7, 9, 15 ... Example If k=4, return 9. Challenge O(n log n) or…

原题 Write a program to find the n-th ugly number. Ugly numbers are positive numbers whose prime factors only include 2, 3, 5. For example, 1, 2, 3, 4, 5, 6, 8, 9, 10, 12 is the sequence of the first 10 ugly numbers. Note that 1 is typically treated as…

Write a program to check whether a given number is an ugly number. Ugly numbers are positive numbers whose prime factors only include 2, 3, 5. For example, 6, 8 are ugly while 14 is not ugly since it includes another prime factor 7. Note that 1 is ty…

Write a program to find the nth super ugly number. Super ugly numbers are positive numbers whose all prime factors are in the given prime list primes of size k. For example, [1, 2, 4, 7, 8, 13, 14, 16, 19, 26, 28, 32] is the sequence of the first 12…

一. 题目描写叙述 Write a program to find the n-th ugly number. Ugly numbers are positive numbers whose prime factors only include 2, 3, 5. For example, 1, 2, 3, 4, 5, 6, 8, 9, 10, 12 is the sequence of the first 10 ugly numbers. Note that 1 is typically tre…

题目链接:http://codeforces.com/contest/761/problem/B B. Dasha and friends time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Running with barriers on the circle track is very popular in the count…

18005 It is not ugly number 时间限制:2000MS  内存限制:65535K提交次数:0 通过次数:0 题型: 编程题   语言: G++;GCC Description Ugly numbers are numbers whose only prime factors are 2, 3 or 5. The sequence1, 2, 3, 4, 5, 6, 8, 9, 10, 12, ...shows the first 10 ugly numbers. By co…

题目: Write a program to find the n-th ugly number. Ugly numbers are positive numbers whose prime factors only include 2, 3, 5. For example, 1, 2, 3, 4, 5, 6, 8, 9, 10, 12 is the sequence of the first 10 ugly numbers. Note that 1 is typically treated a…

Write a program to find the n-th ugly number. Ugly numbers are positive numbers whose prime factors only include 2, 3, 5. Example: Input: n = 10 Output: 12 Explanation: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12 is the sequence of the first 10 ugly numbers. Note…

Write a program to find the n-th ugly number. Ugly numbers are positive numbers whose prime factors only include 2, 3, 5. Example: Input: n = 10 Output: 12 Explanation: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12 is the sequence of the first 10 ugly numbers. Note…

Write a program to find the nth super ugly number. Super ugly numbers are positive numbers whose all prime factors are in the given prime list primes of size k. Example: Input: n = 12, primes = [2,7,13,19] Output: 32 Explanation: [1,2,4,7,8,13,14,16,…

Hidden Password 时间限制(普通/Java):1000MS/3000MS 运行内存限制:65536KByte总提交: 53 测试通过: 19 描述 Some time the programmers have very strange ways to hide their passwords. See for example how Billy "Hacker" Geits hide his password. Billy chooses a string S compo…

标签(空格分隔): LeetCode 作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ https://leetcode.com/problems/ugly-number-ii/ Total Accepted: 12227 Total Submissions: 54870 Difficulty: Medium Question Write a program to find the n-th ugly number. Ugly num…

Write a program to find the nth super ugly number. Super ugly numbers are positive numbers whose all prime factors are in the given prime list primes of sizek. For example, [1, 2, 4, 7, 8, 13, 14, 16, 19, 26, 28, 32] is the sequence of the first 12 s…

Write a program to check whether a given number is an ugly number. Ugly numbers are positive numbers whose prime factors only include 2, 3, 5. For example, 6, 8 are ugly while 14 is not ugly since it includes another prime factor 7. Note that 1 is ty…

简单题 Ugly Number My Submissions Question Total Accepted: 32635 Total Submissions: 94009 Difficulty: Easy Write a program to check whether a given number is an ugly number. Ugly numbers are positive numbers whose prime factors only include 2, 3, 5. For…

Write a program to find the nth super ugly number. Super ugly numbers are positive numbers whose all prime factors are in the given prime list primes of size k. For example, [1, 2, 4, 7, 8, 13, 14, 16, 19, 26, 28, 32] is the sequence of the first 12…