【CF585F】Digits of Number Pi(AC自动机上数位DP) posted @ 2020-11-22 19:05 TheLostWeak 阅读(99) 评论(0) 编辑 收藏 举报 分类: CodeForces 标签: 动态规划 , AC自动机 点此看题面给定一个长为nn的字符串ss和两个长为dd的字符串l,rl,r。 问有多少长为dd的在[l,r][l,r]内的字符串...
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。
#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$\lfloor\frac d2\rfloor$的子串是$s$的子串。 点此看题面 给定一个长为\(n\)的字符串\(s\)和两个长为\(d\)的...
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...
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 ...
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 ...
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 ...
pi1 (pī) n. 1.(alsopē)The 16th letter of the Greek alphabet. See Table atalphabet. 2.MathematicsA transcendental number, approximately 3.14159, represented by the symbol π, that expresses the ratio of the circumference to the diameter of a circle and appears as a constant in many mathem...
On Aug 16,Swiss research said they broke a new record.Using a supercomputer,they calculated (计算) pi to 62.8 trillion(万亿) digits.The team at University of Applied Sciences in Graubunden,Switzerland took 108 days and nine hours to do this!