#sequences

ORA-04015: ascending sequences that CYCLE must specify MAXVALUE

文档解释ORA-04015:ascendingsequencesthatCYCLEmustspecifyMAXVALUECause:sequencesthatcyclemusthavetheirwrap-wrapspecifiedAction:re-createthesequence,specifyingitswrap...

ORA-04014: descending sequences that CYCLE must specify MINVALUE

文档解释ORA-04014:descendingsequencesthatCYCLEmustspecifyMINVALUECause:sequencesthatcyclemusthavetheirwrap-wrapspecifiedAction:re-createthesequence,specifyingitswra...

ORA-02205: only SELECT and ALTER privileges are valid for sequences

文档解释ORA-02205:onlySELECTandALTERprivilegesarevalidforsequencesCause:Anattemptwasmadetograntorrevokeaninvalidprivilegeonasequence.Action:Donotattempttograntorrev...

A. DZY Loves Sequences

题目链接:http://codeforces.com/problemset/problem/446/A 题目大意:让你找到一个区间,你可以改变这个区间的一个数,然后使得这个区间是严格上升的且这个区间一定是最长的,输出区间长度 思路:用dp1[i]记录i之前(包括i自己)连续序列长度(不一定是最长的)用dp2[i]记录i...
代码星球 ·2023-05-06

leetcode 659. Split Array into Consecutive Subsequences

Youaregivenanintegerarraysortedinascendingorder(maycontainduplicates),youneedtosplitthemintoseveralsubsequences,whereeachsubsequencesconsistofatleast3consecutiv...

946. Validate Stack Sequences

 946.ValidateStackSequences classSolution{public:boolvalidateStackSequences(vector<int>&pushed,vector<int>&popped){stack<int>...
代码星球 ·2020-10-13

792. Number of Matching Subsequences

  参考代码:https://leetcode.com/problems/number-of-matching-subsequences/discuss/117575/C++-12-Line-Solution-with-Explanation 思路:把每个S的字符的下标存储下来,同一个单词...

Distinct Subsequences

https://leetcode.com/problems/distinct-subsequences/discuss/37327/Easy-to-understand-DP-in-Java如果S[i]==T[j],那么dp[i][j]=dp[i-1][j-1]+dp[i-1][j]。意思是:如果当前S[i]==T[j...
代码星球 ·2020-10-13

Codeforces Round #257(Div. 2) B. Jzzhu and Sequences(矩阵高速幂)

题目链接:http://codeforces.com/problemset/problem/450/BB.JzzhuandSequencestimelimitpertest1secondmemorylimitpertest256megabytesinputstandardinputoutputstandardoutpu...

动态规划-计数dp-Distinct Subsequences II

2020-02-06 17:01:36问题描述:问题求解:非常经典的计数dp问题,思路就是统计以每个字符为结尾的个数,最后求和即可。dp[i]=sumof(dp[j])0<=j<=i;可以理解为将最后的一个字符追加到前面的字符串后面。问题是如何去重。当我们遇到相同的字符的时候,首先最后一个字符单独...

动态规划-Distinct Subsequences

2020-01-03 13:29:04问题描述:问题求解:经典的动态规划题目,一般来说dp题目是递推关系公式难想,但是实际代码量还是比较少的。有尝试过dfs来做,但是由于时间复杂度是指数级别的,所以会TLE。publicintnumDistinct(Strings,Stringt){intn1=s.lengt...

将数组划分成连续子序列 Split Array into Consecutive Subsequences

2018-08-0420:47:43问题描述:问题描述:本题需要的是将一个数组划分成子序列,保证每个子序列是连续的,并且长度要大于等于3。解题思路是使用贪心算法,首先对数组中的数字进行计数,然后遍历数组,对每个数字,如果说candidate中有这个数字,那么意味着它可以和之前的子序列组成更长的序列,直接将之添加到先前的...

codeforces 450B Jzzhu and Sequences

题目链接:http://codeforces.com/contest/450/problem/B解题思路:找循环节。注意当f[i]是负数的时候一定要把他加上mod直到>0为止;e:-3%4==1;#include<iostream>usingnamespacestd;constintmod=1e9+7...

oracle导出sequences

将某个用户的全部sequence查询出来,并拼成创建语句:select'createsequence'||sequence_name||'minvalue'||min_value||'maxvalue'||max_value||'startwith'||last_number||'incrementby'||incre...
代码星球 ·2020-04-15