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。
p) fa[np]=root; else { int q=ch[p][c]; if(len[q]==len[p]+1) fa[np]=q; else { int nq=++tot; memcpy(ch[nq],ch[q],sizeof(ch[q])); len[nq]=len[p]+1,fa[nq]=fa[q],fa[np]=fa[q]=nq; while(ch[p][c]==q) ch[p][c]=nq,p=fa[p]; } } } int dp(int...
【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...
#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...
【题解】CF585F Digits of Number Pi 超水的 d1f 。暂时不知道长度限制是 $\lfloor\frac{d}{2}\rfloor$ 有什么特殊意义。 经典套路题,将所有长为 $\lfloor\frac{d}{2}\rfloor$ 的 $s$ 子串都塞入 aho-corasick automaton,然后数位 dp 。 容斥掉下界,令 $f(i,j,0/1,0/1)$ 表示从高到低...
CF585F Digits of Number Pi - CF585F Digits of Number Pi 时间:2020-05-14 12:46:24 阅读:30 ...
圆周率10000位(10000digitsofPI)Thefollowingare10000digitsofPIinPInumberisThreeOneForty-oneFifty-nineTwothousandsixhundredandfifty-three58..
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!
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...
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