Codeforce 1000 D. Yet Another Problem On a Subsequence 解析(DP) 今天我們來看看CF1000D 題目連結 題目 略,請直接看原題 前言 這題提供了我一種實用的算\(C_m^n\)的方法 @copyright petjelinux 版權所有 觀看更多正版原始文章請至petjelinux的blog 想法 考慮\(dp[i]\)為考慮到\(i\)位置為止的所以\(subsequence\)數量\(+1\)(一個都不選),解答就是\(dp[n]-…
The sequence of integers a1,a2,…,aka1,a2,…,ak is called a good array if a1=k−1a1=k−1 and a1>0a1>0. For example, the sequences [3,−1,44,0],[1,−99][3,−1,44,0],[1,−99] are good arrays, and the sequences [3,7,8],[2,5,4,1],[0][3,7,8],[2,5,4,1],[0] — are…
D - Yet Another Problem On a Subsequence CodeForces - 1000D The sequence of integers a1,a2,-,aka1,a2,-,ak is called a good array if a1=k−1a1=k−1 and a1>0a1>0. For example, the sequences [3,−1,44,0],[1,−99][3,−1,44,0],[1,−99] are good arrays, and the…
Common Subsequence Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 24489 Accepted Submission(s): 10823 Problem Description A subsequence of a given sequence is the given sequence with some e…
Common Subsequence Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 39559 Accepted Submission(s): 18178 Problem Description A subsequence of a given sequence is the given sequence with some el…
题目链接 Problem Description A subsequence of a given sequence is the given sequence with some elements (possible none) left out. Given a sequence X = <x1, x2, ..., xm> another sequence Z = <z1, z2, ..., zk> is a subsequence of X if there exists a…
HDOJ 1423 Greatest Common Increasing Subsequence [DP][最长公共上升子序列] Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 8768 Accepted Submission(s): 2831 Problem Description This is a problem from ZOJ 24…
HDOJ 1159 Common Subsequence[DP] Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 44280 Accepted Submission(s): 20431 Problem Description A subsequence of a given sequence is the given sequence wit…
POJ_2533 Longest Ordered Subsequence[DP][最长递增子序列] Longest Ordered Subsequence Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 58448 Accepted: 26207 Description A numeric sequence of ai is ordered if a1 < a2 < - < aN. Let the subsequenc…
