white tree outline

http://www.lydsy.com/JudgeOnline/problem.php?id=3319I think it is a template problem to review the next hld ....... ...........Then nlg^2n was taken by the tle ......... .............Then look at the Qaq,,, this ...God-Problem practice ... I'll write again later ...HLD of Tle:#include 　　 DescriptionGiven a tree, the color of the edges is black or white, and the original is all

Big white book stretching tree learning notes, big white stretching learning notesVoid splay (Node * o, int k){Int d = o-> cmp (k); // The cmp function compares the values of k and o-> ch [0]-> s + 1.If (d = 1) k-= o-> ch [0]-> s + 1;If (d! =-1){Node * p = o-> ch [d];Int d2 = p-> cmp (k );Int k2 = (d2 = 0? K: k-p-> ch [0]-> s-1 );If (d2! =-1){Splay (p-> ch [d2],

Title Link: xjoi-noi2015-13-cProblem analysisSolve this problem with a magical line-segment tree combined with the time complexity of O (NLOGN).A line tree is established for each point on the tree, and key is the time (i.e., the first several operations) and the dynamic opening point.The nodes of the segment tree main

: Contains the maximum continuous and the left endpoint.Rmax: Contains the maximum continuous and the right endpoint.Max: The maximum continuous and in the interval.Sum: All elements of the interval.Maintain the information after each modification.If you divide an interval of o into the left and right two interval ls, RS, you can get a similar dynamic programming equation (think about why):Val[o]. Sum = Val[ls]. sum+ Val[rs]. Sum;Val[o]. Lmax = Max (Val[ls]. Lmax, Val[ls]. SUM+VAL[RS]. Lmax); D

"BZOJ1818" [Cqoi2010] Inner white point description infinite square grid with n black vertices, all other vertices are white (the vertices of the mesh are the points of the integer coordinates, also known as the whole hour). Every second, all internal white dots darken at the same time, until there is no inner white sp

http://www.lydsy.com/JudgeOnline/problem.php?id=3319Test instructions: to a tree of n nodes (N#include 　　 Good God's problem spicy ....I wrote a long-ago chain-cut + line tree ... Decisive tle ... ("Bzoj" 3319: Black-and-white tree (and check set + special tricks/-tree

To give you Photoshop software users to detailed analysis to share a cut down under the tree in the white beauty of the later tutorial. Tutorial Sharing: Original 1, open the material picture, create the optional Color adjustment layer, adjust the green, parameters and effect as shown below. This step puts the green in the picture slightly deeper.

park range (1≤a,b≤n, A can be greater than b! K=2 said that the small white changed the rating of a park, and the next two integers p and s, indicating that the mark of the small white to the P Park became S (1≤p≤n).Among them, 1≤n≤500 000,1≤m≤100 000, all scores are integers with an absolute value not exceeding 1000.Output formatSmall white every go out to play

Problem descriptionthere are a bunch of stones on the beach; stone color is white or black. little Sheep has a magic brush, she can change the color of a continuous stone, black to white, white to black. little sheep like black very much, so she want to know the longest period of consecutive black stones in a range [I, j]. Input there are multiple cases, the firs

comment (linker,"/stack:1024000000,1024000000") typedefLong LongLL;intScan () {intres=0, flag=0; Charch; if((Ch=getchar ()) = ='-') flag=1; Else if(ch>='0'ch'9') res=ch-'0'; while((Ch=getchar ()) >='0'ch'9') res=res*Ten+ (ch-'0'); returnflag?-res:res;}voidOut (inta) {if(a0) {Putchar ('-'); a=-A;} if(a>=Ten) Out (A/Ten); Putchar (A%Ten+'0');}Const intn=100005;//Code begin ...structnode{intx, y;} Node[n];vi V, vv;intCol[n], vis[n], tree[n], N;BOOLComp

DescroptionOriginal link you have a \ (n*m\) rectangle, at the beginning all the squares are white, and then give a target state of the rectangle, some place is white, some place is black, you can choose a connecting block each time (four connected blocks, And do not require the same color) for dyeing operations (dyed white or black). The minimum number of operat

}Change the value of one item to change each related item in {CN} 1 void Add ( int x,int v) // x position plus v 2 { 3 while (x// n is the boundary, how many number 4 { Span style= "COLOR: #008080" >5 c[x]+=V; 6 x+=lowbit (x); // 7 } 8 } That from A[x]+a[x+1]+a[x+2]+......+a[y-1]+a[y], it can be expressed as sum (y)-sum (x-1);is the arbitrary sequential sequence andThe shadowy dividing line under the text of the foundation or not, may not speak very well, p

sake of explaining that only the difference is drawn)Obviously moved over the bricks all know that this brick is not good to move because it does not squareThen we'll change it.(Why is it so ugly, because I can't draw and lazy)My sister! Now, that's a lot of bricks,!!!!!!!!!.(7+1) (∑delta "1~7")-(Delta "1" *1+delta "2" *2+......+delta "7" *7)The Delta "n" behind the *n is hard to see, isn't it?That means "Deltai".Define Deltai "I" =delta "I" *iObviously because we're going to do a lot of sums,

Problem Descriptionthere is a bunch of stones on the beach; Stone color is white or black. Little Sheep have a magic brush, she can change the color of a continuous stone, black to white, white to black. Little Sheep like black very much, so she want to know the longest period of consecutive black stones in a range [I, j].Input There was multiple cases, the first

void Splay (Node * o,int k){int d=o->cmp (k); The//CMP function compares the sizes of K and o->ch[0]->s+1if (d==1) k-=o->ch[0]->s+1;if (d!=-1){Node *p=o->ch[d];int d2=p->cmp (k);int k2= (D2==0?K:K-P-GT;CH[0]-GT;S-1);if (d2!=-1){Splay (P-GT;CH[D2],K2);if (d==d2) rotate (o,d^1),/* This time has extended the K-node to, P->ch[d2], when D==d2, stating three pointsCollinear, you can first turn o to o d^1 direction, then O Point is P, and then let O in the same direction rotation once, this way of rota

Connection: HDU 3911 black and white A sequence is given and M operations are performed; 0 l r: indicates the maximum number of consecutive 1 s in query L and R. 1 l r: returns the inverse of the number in the range of L and R. Solution: A Question type of the Line Segment tree. The interval is merged. Because there is an inverse operation, we need to maintain six values for each node, including the len

the maximum value of the left son's Maxl with the left son Sum and the right son Maxl.4, the MaxR of the node is the maximum value of the right son's maxr and the right son Sum and the left son MaxR.5, the sum of the node is the sum of the left and right son.When querying:1. If the query interval overrides this node, the node information is returned.2. If only one son is connected, return the information found in that son.3. If there is a intersection with the two sons, first calculate the info

Topic links Topic: Given a tree, there are two operations:1. Ask the number of the first black edge encountered on the path to the root of a point2. Apply a path to black Solution: I wrote a violent procedure according to the train of thought 3910, then the Tle, the film First, each edge is grouped at the point below it, and each point represents its connection to the father, so that the following actions on the edge are used to represent All the acti

Descrete (ys, Bys, N); the the for(inti =1; I ) theLs[i] = ds[i] =N; - for(inti =1; I ) theUs[i] = rs[i] =0; the the for(inti =1; I ) {94 smin (Ls[ys[i]], xs[i]); the Smax (Rs[ys[i]], xs[i]); the smin (Ds[xs[i]], ys[i]); the Smax (Us[xs[i]], ys[i]);98 } About - for(inti =1; I )101 Vs[xs[i]].push_back (Ys[i]);102 103 for(inti =1; I )104 if(Ls[i] 1) { theES[++TP] = Event (Ls[i], I,1);106ES[++TP] = Event (Rs[i], I,-1);107 }108Sort (es +1, ES

Hdu3911 Black And White (merge of line tree segments), hdu3911white Question: There are two operations for a sequence consisting of 0 and 1. One is to flip the number of given intervals (0-> 1, 1-> 0 ), the other is to query the maximum length of a substring consisting of 1 in a given interval. Focus on Interval merging and latency marking. # Include Copyright Disclaimer: This article is an original a