Gym 100650H Two Ends DFS+记忆化搜索

【Gym 100650H Two Ends DFS+记忆化搜索】的更多相关文章

Gym 100650H Two Ends DFS+记忆化搜索

Problem H: Two EndsIn the two-player game “Two Ends”, an even number of cards is laid out in a row. On each card, faceup, is written a positive integer. Players take turns removing a card from either end of the row andplacing the card in their pile.…

不要62 hdu 2089 dfs记忆化搜索

题目:http://acm.hdu.edu.cn/showproblem.php?pid=2089 题意: 给你两个数作为一个闭区间的端点,求出该区间中不包含数字4和62的数的个数思路: 数位dp中的 dfs 记忆化搜索方法解. 模板: int dfs(int i, int s, bool e) { ) return s==target_s; ) return f[i][s]; ; ; :; d <= u; ++d) res += dfs(i-, new_s(s, d), e&&d…

dfs+记忆化搜索，求任意两点之间的最长路径

C.Coolest Ski Route 题意:n个点,m条边组成的有向图,求任意两点之间的最长路径 dfs记忆化搜索 #include<iostream> #include<string.h> #include<string> #include<algorithm> #include<math.h> #include<string> #include<string.h> #include<vector> #in…

hdu 1078 FatMouse and Cheese （dfs+记忆化搜索）

pid=1078">FatMouse and Cheese Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 4811 Accepted Submission(s): 1945 Problem Description FatMouse has stored some cheese in a city. The city can…

kuangbin专题十二 HDU1078 FatMouse and Cheese ）(dp + dfs 记忆化搜索)

FatMouse and Cheese Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 14253 Accepted Submission(s): 6035 Problem Description FatMouse has stored some cheese in a city. The city can be considere…

hdu 1078(dfs记忆化搜索)

题意:容易理解... 思路:我开始是用dfs剪枝做的,968ms险过的,后来在网上学习了记忆化搜索=深搜形式+dp思想,时间复杂度大大降低,我个人理解,就是从某一个点出发,前面的点是由后面的点求出的,然后一直递归先求出后面的点,最后达到求解的效果. 代码实现: #include<iostream> #include<string.h> #include<stdio.h> using namespace std; ][],count[][]; int n,k; ][]={…

UVA 10400 Game Show Math (dfs + 记忆化搜索)

Problem H Game Show Math Input: standard input Output: standard output Time Limit: 15 seconds A game show in Britain has a segment where it gives its contestants a sequence of positive numbers and a target number. The contestant must make a mathemati…