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分治与汉诺塔问题
分治与汉诺塔 分治算法 分治算法介绍 分治法是一种很重要的算法。字面上的解释是“分而治之”,就是把一个复杂的问题分成两个或更多的相同或相似的子问题,再把子问题分成更小的子问题……直到最后子问题可以简单的直接求解,原问题的解即子问题的解的合并。这个技巧是很多高效算法的基础,如排序算法(快速排序,归并排 ...
分类:其他好文   时间:2020-02-20 10:12:53    阅读次数:62
LeetCode——012 Integer to Roman
Description Roman numerals are represented by seven different symbols: I, V, X, L, C, D and M. For example, two is written as II in Roman numeral, jus ...
分类:其他好文   时间:2020-02-20 09:28:12    阅读次数:79
[LeetCode] 934. Shortest Bridge 最短的桥梁
In a given 2D binary array , there are two islands. (An island is a 4 directionally connected group of s not connected to any other 1s.) Now, we may c ...
分类:其他好文   时间:2020-02-19 23:40:26    阅读次数:85
Power Strings POJ - 2406 后缀数组
Given two strings a and b we define a*b to be their concatenation. For example, if a = "abc" and b = "def" then a*b = "abcdef". If we think of concate ...
分类:编程语言   时间:2020-02-18 16:33:41    阅读次数:88
1030 完美数列
two pointers通向扫描法。 #include<iostream> #include<algorithm> using namespace std; typedef long long LL; LL a[100010] = {0}; int main() { int n,p,max = -1 ...
分类:其他好文   时间:2020-02-18 13:04:59    阅读次数:49
Cut Ribbon
Polycarpus has a ribbon, its length is n. He wants to cut the ribbon in a way that fulfils the following two conditions: After the cutting each ribbon ...
分类:其他好文   时间:2020-02-18 13:04:42    阅读次数:81
LeetCode 390. Elimination Game
原题链接在这里:https://leetcode.com/problems/elimination-game/ 题目: There is a list of sorted integers from 1 to n. Starting from left to right, remove the fi ...
分类:其他好文   时间:2020-02-18 09:56:29    阅读次数:79
16. 3Sum Closest
1.题目描述 英文版: Given an array nums of n integers and an integer target, find three integers in nums such that the sum is closest to target. Return the su ...
分类:其他好文   时间:2020-02-18 09:54:23    阅读次数:55
欧拉计划第10题题解
Summation of primes The sum of the primes below 10 is 2 + 3 + 5 + 7 = 17. Find the sum of all the primes below two million. 素数的和 所有小于10的素数的和是2 + 3 + 5 ...
分类:其他好文   时间:2020-02-17 20:02:02    阅读次数:77
42. Trapping Rain Water
Given n non-negative integers representing an elevation map where the width of each bar is 1, compute how much water it is able to trap after raining. ...
分类:移动开发   时间:2020-02-17 19:37:00    阅读次数:78
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