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codeforces 446C DZY Loves Fibonacci Numbers 线段树
假如F[1] = a, F[2] = B, F[n] = F[n - 1] + F[n - 2]。写成矩阵表示形式可以很快发现F[n] = f[n - 1] * b + f[n - 2] * a。 f[n] 是斐波那契数列也就是我们如果知道一段区间的前两个数增加了多少,可以很快计算出这段区间的第k个...
分类:其他好文   时间:2014-07-31 09:47:46    阅读次数:286
HDU - 3117 Fibonacci Numbers
Description The Fibonacci sequence is the sequence of numbers such that every element is equal to the sum of the two previous elements, except for the first two elements f0 and f1 which are respect...
分类:其他好文   时间:2014-07-31 00:08:05    阅读次数:281
HDU1715 大菲波数 【C版本】
大菲波数 Time Limit: 1000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 11137    Accepted Submission(s): 3769 Problem Description Fibonacci数列,定义如下: ...
分类:其他好文   时间:2014-07-31 00:03:15    阅读次数:234
hdu 3117 Fibonacci Numbers
Fibonacci Numbers Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 1766    Accepted Submission(s): 695 Problem Description The Fibon...
分类:其他好文   时间:2014-07-30 20:50:54    阅读次数:276
Wow! Such Sequence!
n个点,每个初始值为零,m个操作,共三种操作: 1 k d - "add" 2 l r - "query sum" 3 l r - "change to nearest Fibonacci" 1 ≤ n ≤ 100000, 1 ≤ m ≤ 100000, |d| < 231...
分类:其他好文   时间:2014-07-30 10:03:53    阅读次数:246
HDU_4893 2014多校三 线段树
给定一个初始都为0的序列,有三种操作,前两种比较正常,一个是对某个位置的数add k,另一个是query区间和。然后比较麻烦的是第三个操作,把某个区间里面的每个值改成离它最近的Fibonacci数,如果存在左右两个离它近的,优先取左边数值小的一看到前两个操作马上就想上手敲树状数组,后来看到第三个就有...
分类:其他好文   时间:2014-07-30 00:56:52    阅读次数:211
HDU - 1588 Gauss Fibonacci (矩阵快速幂+二分求等比数列和)
Description Without expecting, Angel replied quickly.She says: "I'v heard that you'r a very clever boy. So if you wanna me be your GF, you should solve the problem called GF~. " How good an oppo...
分类:其他好文   时间:2014-07-29 22:05:52    阅读次数:420
HDUJ 1250 Hat's Fibonacci
Hat's Fibonacci Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 7338    Accepted Submission(s): 2395 Problem Description A Fibonacci se...
分类:其他好文   时间:2014-07-29 15:09:48    阅读次数:216
hdu 1568 Fibonacci
题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1568数学....囧...害我低沉了好几天提不起劲做题。用到了斐波那契数列的通项公式。先看对数的性质,loga(b^c)=c*loga(b),loga(b*c)=loga(b)+loga(c); 假设给出...
分类:其他好文   时间:2014-07-29 11:06:06    阅读次数:187
hdu 3306 Another kind of Fibonacci
Another kind of Fibonacci Time Limit: 3000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 1526    Accepted Submission(s): 583 Problem Description A...
分类:其他好文   时间:2014-07-28 16:36:13    阅读次数:322
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