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Oracle 序列的应用
Oracle创建序列,删除序列,得到序列序列的创建create sequence seq_newsId increment by 1 start with 1 maxvalue 999999999;得到序列的SQL语句select seq_newsid.nextval from sys.dual;删...
分类:数据库   时间:2014-07-22 22:44:32    阅读次数:272
【leetcode刷题笔记】Count and Say
The count-and-say sequence is the sequence of integers beginning as follows:1, 11, 21, 1211, 111221, ...1is read off as"one 1"or11.11is read off as"tw...
分类:其他好文   时间:2014-07-22 22:43:14    阅读次数:198
UVA 10689 - Yet another Number Sequence(矩阵快速幂)
UVA 10689 - Yet another Number Sequence 题目链接 题意:斐波那契给前两项,求出第n项,并保留m位 思路:挺裸的矩阵快速幂,就是取模的值是10^m 代码: #include #include const int mod[5] = {0, 10, 100, 1000, 10000}; int t, a, b, n, m; s...
分类:其他好文   时间:2014-07-22 00:31:37    阅读次数:279
POJ 2478 Farey Sequence
DescriptionThe Farey Sequence Fn for any integer n with n >= 2 is the set of irreducible rational numbers a/b with 0 < a < b <= n and gcd(a,b) = 1 arr...
分类:其他好文   时间:2014-07-22 00:20:35    阅读次数:283
hdu 1711 Number Sequence
直接套KMP模板 #include #include #include using namespace std; int s[1000005],w[10005],next[10005]; int b,c; void show() { int i,j; i=0; next[0]=-1; j=-1; while(i<c) { if(j=...
分类:其他好文   时间:2014-07-21 23:29:03    阅读次数:334
区间DP基础篇之 POJ2955——Brackets
怒拿一血,first blood,第一个区间DP,第一次就这样子莫名其妙不知不觉滴没了~~~ 题目虽然是鸟语,但还是很赤裸裸的告诉我们要求最大的括号匹配数,DP走起~ dp[i][j]表示区间[i,j]的最大匹配数,那么最重要的状态转移方程就是: dp[i][j]=max(dp[i][k]+dp[k+1][j]) 对啦,要先初始化边界啊,两步走~: memset(dp,0,siz...
分类:其他好文   时间:2014-07-21 23:27:29    阅读次数:214
UVa 10069 Distinct Subsequences(大数+DP)
Distinct Subsequences A subsequence of a given sequence is just the given sequence with some elements (possibly none) left out. Formally, given a sequence X = x1x2…xm, another sequence Z = z1...
分类:其他好文   时间:2014-07-21 15:44:16    阅读次数:244
POJ 2955 Brackets 区间DP
题目来源:POJ 2955 Brackets 题意:最大括号匹配 思路: #include #include #include #include using namespace std; const int maxn = 210; int dp[maxn][maxn]; char a[maxn]; int b[maxn]; int dfs(int l, int r) { if(l ...
分类:其他好文   时间:2014-07-21 14:07:05    阅读次数:178
HDU 3397 Sequence operation (线段树,成段更新,区间合并)
http://acm.hdu.edu.cn/showproblem.php?pid=3397 Sequence operation Time Limit: 10000/5000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 5801    Accepted Subm...
分类:其他好文   时间:2014-07-21 11:45:44    阅读次数:244
hdu4632Palindrome subsequence (求回文数,区间DP)
Problem Description In mathematics, a subsequence is a sequence that can be derived from another sequence by deleting some elements without changing the order of the remaining elements. For example, ...
分类:其他好文   时间:2014-07-21 11:13:44    阅读次数:270
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