Codeforces 585F. Digits of Number Pi 题解 题目链接:F. Digits of Number Pi题目大意:洛谷题解:观察到n,dn,d都很小,所以我们可以把ss中所有长度为⌊d2⌋⌊d2⌋的子串全部拿出来建一个 AC 自动机,然后将限制差分一下改成小于等于一个数的有多少个,然后直接跑一遍非常暴力的数位 DP 即可。
如果我们把ss每个长度为⌊d2⌋⌊d2⌋的子串都取出来建一个ACAC自动机,那么我们就是要求有多少个[l,r][l,r]内的字符串能匹配到至少一个模式串。于是就设fx,rt,0/1,0/1fx,rt,0/1,0/1表示做到第xx个字符、对应ACAC自动机上编号为rtrt的节点、是否完成过匹配、是否卡到数字上界的方案数。
And now, AsapSCIENCE presents 200 digits of pi. To start, let’s review the first 100. 3.14159, this is pi, Followed by two six five three five eight nine. Circumference over diameter. Seven nine then three two ...
#P585F. Digits of Number Pi Description Vasily has recently learned about the amazing properties of numberπ. In one of the articles it has been hypothesized that, whatever the sequence of numbers we have, in some position, this sequence is found among the digits of numberπ. Thus, if you...
【CF585F】Digits of Number Pi(AC自动机上数位DP),给定一个长为$n$的字符串$s$和两个长为$d$的字符串$l,r$。问有多少长为$d$的在$[l,r]$内的字符串,满足存在长度至少为$\lfloor\fracd2\rfloor$的子串是$s$的子串。
CF585F Digits of Number Pi 题目 把\(s\)串所有长度为\(\lfloor \frac{d}{2}\rfloor\)的子串插入一个ACAM中,之后数位dp就好了,状态是\(dp_{i,j,0/1}\)第\(i\)位,在ACAM上的节点\(j\),不卡/卡上界;正难则反一下,统计所有不能被表示即没有经过结束标记的路径即可...
圆周率10000位(10000digitsofPI) Thefollowingare10000digitsofPIinPInumberis Three One Forty-one Fifty-nine Twothousandsixhundredandfifty-three 5897 93238 462643 383279 50288419 71693993 751058209 7494459230 78164062862 089986280348 253421170679 82148086513282 ...
Mathematics - Number TheoryThe decimal digits of $\\pi$ are widely believed to behave like as statistically independent random variables taking the values $0, 1, 2, 3, 4, 5$, $6, 7, 8, 9$ with equal probabilities $1/10$. In this article, first, another similar conjecture is ...
What part of this story is news? A. Pi Day was celebrated recently. B. The value of pi was calculated to a further number. C. The former value of pi was proven to be incorrect. D. A supercomputer was developed in Switzerland.()70. The former Guinness record of the value of pi ...
圆周率10000位(10000 digits of PI).doc,圆周率10000位(10000 digits of PI) The following are 10000 digits of PI in PI number is Three One Forty-one Fifty-nine Two thousand six hundred and fifty-three 5 897 93 238 46 2643 3 83279 50288 419 71 69399 3 751