checkerboard dimensions

Title: Give an n * N chess board, there are some places on this board can not play chess pieces.Now ask you to put a K on this board, so that any of these pieces of two not on the same row, ask how many waysProblem-solving ideas: Similar to the N-queen, can be a line of processing, with the binary 1 means that the position can be put, 0 means no, all indicates the status of each row can be put ((1 Assuming the state of the column is S, then S (the line's limit) All is the end state of the row.

http://poj.org/problem?id=1321Because the search is originally written, and the training time did not come so can only now fill the-_-A simple deep search#include #includestring.h>#include#include#defineN 10#defineINF 0XFFFFFFF#include#includeusing namespacestd;intN,ans,k,num,vis[n],sx,sy;CharMaps[n][n];voidDfsintM//M is the first few lines;{ inti; if(num==k) {ans++; return ; } if(m>=N)return ; for(i=0; i) { if(vis[i]==0maps[m][i]=='#') {num++; Vis[i]=1; DFS (M+1); Vis[i]=0; Num

Reprint please indicate the source CSDN ametake All rights reservedTitle Description DescriptionThe number triangle must pass a certain point to make it go the distance and the maximumEnter a description input DescriptionRow 1th N, representing n rows2nd to n+1 behavior each weight valueThe program must go through the N Div 2,n Div 2 pointOutputs description output DescriptionMaximum ValueSample input to sample211 1Sample output sample outputs2Data size HintN Listen to Lu Jinglong god Ben tod

An n * N chess board, some lattices can not put, put the pieces of M,each of the two pieces cannot be in the same row or column, ask how many kinds of release methodDfs is too slow, use SCR better dotPython has only 22 lines, which in fact can be shorter. But it's going to be a very long, very long line.While true:table = [[0 to J in Range] ' for I in range ()] table[0][0] = 1 boardsize, chessnum = ma P (int, raw_input (). Split ()) if boardsize = = Chessnum = -1:break states = Range (1 Dynamic

into nine regions and then discuss the relationship between the four corners of the modified matrix four edges and the entire position and the nine regionsThe red area in the figure shows +, and the green area indicates-For a chestnut, if the upper-left corner of a matrix is in the first quadrant, it will subtract the modified value from the point (x1-1,y1)If a matrix crosses the vertical axis and the lower boundary is below the origin, it will subtract the modified value from the point (x,y2+1

square as a special point (first divided into 4 smallSquare, find the square with no special points, and the other 3 is the middle point of the large square as a special point),3 special points are connected to a top L domino, so that each small square has a special point, when 2x2, no matterWhere the special points can be combined with L dominoes a square, then for 1x1, end;#include intts[ -][ -];inttile=1;voidChesint,int,int,int,int);voidChesintH1,intL1,intXintYintsize) { intt,s; if(size==

(intb=0; b) {fprintf (FP),"%3d", Arr[a][b]); } fprintf (FP,"\ n"); } fprintf (FP,"\ n"); } voidDFS (intIintj) {if(n==r*c) {count++; StepOut ();//write a function, output horse jump step stepout () } Else for(intk=0;k8; k++) { if(i+x[k]>=0i+x[k]0j+y[k]0) {Flag[i+x[k]][j+y[k]]=1; n++; Arr[i+x[k]][j+y[k]]=n;//matrix assignment to record horse jumping stepsDFS (i+x[k],j+y[k]);//Loop + recursionFlag[i+x[k]][j+y[k]]=0; n--; } }

Google Analytics Deploy custom dimensions and metricsAugust 12, 2013 Abbo 7 Comments To use Google Analytics's custom dimensions and metrics, we first have to recognize the concept of dimensions and metrics. In simple terms: dimensions are the angle of our perception of things, and indicators are the way

In our daily web front-end development process, we often use a variety of sizes and locations. It's usually when JS does the animation. Carousel Diagram, scrolling animation, particle, collision detection, drag, scroll loading, etc. Here I summarize the commonly used sizes and locations, not including the canvas,svg.In Web page development, size and location are divided into the size and location of the screen, the size and location of the element, and the size and location of the document, but

Dimensions of slow changes Slowly changing dimensions A concept in a data warehouse for dimensional modeling is slowly changing.Dimensions, which is often abbreviated as SCD. In the real world, dimension attributes are not static.The loss. This time-varying dimension is generally called a slow-changing dimension, and the problem of processing the historical changes of the dimension table is called the prob

A concept in a data warehouse for dimensional modeling is slowly changing dimensions, which is often abbreviated as SCD. The slow change dimension is proposed because in the real world, the dimension attributes are not static and will change slowly with the loss of time. This time-varying dimension is generally called a slow-changing dimension, and the problem of processing the historical changes of the dimension table is called the problem of process

How do I hide the dimensions of a dimension in a CAD drawing? We in the design of the Japanese Chong, will be in each CAD drawing of the content to do some labeling to the landline number, but when we hand over to the customer to view the CAD drawings, sometimes need to hide the dimensions of the CAD drawing? How exactly do you do that? Let's teach you how to hide the d