- - intGap = Ex_girl[girl] + ex_boy[boy]-Love[girl][boy]; in - if(Gap = =0) {//If the requirements are met toVis_boy[boy] =true; + if(Match[boy] = =-1|| DFS (Match[boy])) {//find a guy who doesn't have a match, or the boy's sister can find someone else . -Match[boy] =girl; the return true; * } $}Else {Panax NotoginsengSlack[boy] = min (Slack[boy], GAP);//s
Objective:Sophomore time in the professional study of HTML, at that time feel quite fun, but also did not go further to learn, recently learning C # video once again in the HTML, so decided to summarize, once again consolidated!Content:Macro map:Defined:HTML is a language used to describe a Web page and is a Hypertext Markup Language (Hyper Text Markup Language)HTML is not a programming language, but rather
Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--> /* PKU 2195 kmAlgorithmMinimum weighted binary matching */ # Include Stdio. h > # Include String . H > # Include Math. h > # Define Maxcompute 101 Int HX [Max], MX [Max], Hy [Max], my [Max]; Char Map [Max] [Max]; Int Usedx [Max], usedy [Max], Match [Max], W [Max] [Max], n, m; /// /Match [] stores the matching information of the right vertex. W [] [] stores the weight
This is a code big problem. First read the wrong test instructions, and then understand the direct look of the kind of adjacent, and then do not want to pass a long time!!!Separate the diagram of the different unicom, and then pre-preprocess the formation of the adjacent diagram after the state, and then according to 01 to determine which is the need to change the state, and then build a diagram, using the binary diagram km algorithm to match the optimal scheme. Then find each group of replaceme
chips to FPGA by the system clock.
Figure 1.3 FPGA data input model
The input delay is the delay time from the external device to the FPGA input port. This includes the latency from the clock source to the FPGA, the latency from the external device, the TCO of data transmission from the external device, and the cabling latency on the PCB. As shown in Figure 1.4, It is the timing of the external device and FPGA interface.
Figure 1.4 timing of external devices and FPGA Interfaces1. maximum inp
] expands, and edge (I, j) does not belong to an equal subgraph.
I is in the staggered tree, j is not in the staggered tree, and edge (I, j) may be added to an equal subgraph.
To ensure that a [I] + B [j]> = w (I, j) is always valid, and at least one edge is added to an equal subgraph, d = min {a [I] + B [j]-w (I, j)}, I is in the staggered tree, j is not in the staggered tree
Time Complexity:You need to find the O (n) Increment path. You need to modify the O (n) Increment path at most. During
:
@after @hipchat('token', 'room', 'Envoy', "{$task} ran in the {$env} environment.")@endafter4.2 Slack
In addition to HipChat, Envoy also supports sending notifications to Slack. @ Slack command receives a Slack hook URL, channel name, and the message you want to send to the channel:
@after @
reduced to AD and BC, must be intersect?It turns out that this proposition is not necessarily, but it can be found that when it can be reduced to AD and BC, AD and BC must be disjoint. Doing so will result in AD+BC > AC+BD.So as long as can reduce the side of the right and, must be able to ensure that disjoint. Then the final state becomes the edge right and the smallest state, which is the minimum match. Can be done using the KM algorithm.Appears to be a data problem and cannot be processed us
HDU_2426
This topic is a perfect match for the maximum right. we need to pay attention to two points: 1. Deal with the negative edge. 2. Note that N and M are not necessarily equal.
For the processing of the first point, I have seen two ways to deal with: ① all the sides are initialized to the negative side, so that as the N-M between all the edge is to exist to match, if the number of matches with the positive edge weight is N, there is a solution. Otherwise, no solution is available. ② The e
KM algorithm of nudity. O (n^4) template , in fact, in the augmented path is still redundant, you can use BFS optimization to O (n^3).1#include 2#include 3#include 4#include 5#include 6#include 7 using namespacestd;8 Const intmaxn= -+5;9 Const intinf=0x7fffffff;Ten intn,m; One intW[MAXN][MAXN]; A intX[MAXN],Y[MAXN]; - intVISX[MAXN],VISY[MAXN],SLACK[MAXN]; - intLK[MAXN]; the - intDfsintu) - { -visx[u]=1; + for(intI=1; i) - { + intwt=x
As mentioned above, high-precision timer is implemented through hrtimer. hrtimer uses a programmable timer to present it. It does not occupy CPU while waiting.
In the user State, when we call usleep, the thread will use hrtimer to wait for CPU usage during kernel state execution.
How to use it in kernel?
Let's take a look at the ep_poll function in eventpoll. C:
static int ep_poll(struct eventpoll *ep, struct epoll_event __user *events, int maxevents, long timeout){int res = 0, eavail, timed_
valid when building the message:
@after @hipchat (' token ', ' guest ', ' Envoy ', ' {$task} ran in the {$env} environment. ') @endafter
4.2 Slack
In addition to Hipchat, Envoy also supports sending notifications to Slack. The @slack instruction receives a slack hook URL, a channel name, and the message you want
the top is modified to enumerate the edges to find D value, the complexity of O (N2). In fact, the complexity of the KM algorithm can be achieved O (N3). We give each y vertex a "slack" function slack, which is initialized to infinity each time we start looking for an augmented path. While looking for an augmented path, when checking for edges (i,j), if it is not in the equal sub-graph, let
Floyd-w is the shortest distance from any point to any point, because of the high complexity, so in order to only a point to any point of time to easily time out, the Dijkstra algorithm is to solve a point to any point of the distance problem, can be used for the direction of the graph or the graph, only need to pay attention to the initialization of the good, In the same way that the FLOYD-W algorithm uses the critical matrix to store the graph, we also need an array to store the origin (1) dis
the c [I]-C [J] edge. If the points on both sides are different, the points on both sides are equal, and then the sides are completed, the weight of the completed edge is regarded as 0, after completing the km operation, you can calculate the values of d [I] And d [J] based on the values of a [I] and B [J. When creating a graph, if C [I]-C [J]
# Include # Include String . H> # Include # Define Maxn 70 # Define Maxd 410 # Define Maxm 810 # Define INF 0x3f3f3f Int N, m, D, first [maxn], E, n
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