squares on checkerboard

Topic: Given a black and white matrix, the largest black and white sub-squares and sub-matricesReverse the point of an odd position, then the largest sub-square and sub-matrix of the solid colorThe matrix is divided into layers, above each layer is a similar to the ▆▃▇▂▉, with a monotonous stack run out each point left to right can expand to the maximum distance, update the answer can be#include Bzoj 1057 ZJOI2007

Css implements the nine squares and css nine squares Principle:Floating + margin negative margin Sample Code: Effect: Hover:

Least squares problem:Before the combination of orthogonal, subspace W, orthogonal projection, orthogonal decomposition theorem and best approximation principle in vector space, the least squares problem can be solved satisfactorily.First of all, we have to explain the problem itself, that is, in the process of production, for the giant linear systems ax=b, may be no solution, but we are urgently need a sol

this case, let me introduce a method, as the title shows, a one-dimensional array to represent the checkerboard state, so how can a one-dimensional array represent a two-dimensional array?We use Tic-tac-Chess as an example:First, take a look at the two-dimensional array to represent the Tic-Tac-chess board:0 1 20 x x x1 x x x2 x x xwhere x is the representation of each position of the chessboard, 0, 1, 2 is the coordinates of each position, such as t

The main topic: there is a 5*n (≤100) board, some of the checkerboard has been dyed black, for the minimum number of lattice staining, all the black can be connected together.This problem card I 1h, wrote 2.6k code, Qingming homework a lump has not done ah ... Before always thought that this is the plug DP, the results of today's look found not >_Because there are only 5 columns, so there are at most 3 black Unicom blocks per line, that is, black, whi

C-Checkerboard IssuesTime limit:MS Memory Limit:10000KB 64bit IO Format:%i64d %i64u SubmitStatusPracticePOJ 1321DescriptionIn a given shape of the chessboard (the shape may be irregular) on the top of the pieces, chess pieces no difference. If you need to place any of the two pieces in the same row or column in the chessboard, please program the chessboard with a given shape and size, and put all the feasible arrangement C for the K pieces.InputThe i

Checkerboard Issues Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 26726 Accepted: 13242 DescriptionIn a given shape of the chessboard (the shape may be irregular) on the top of the pieces, chess pieces no difference. If you need to place any of the two pieces in the same row or column in the chessboard, please program the chessboard with a given shape and size, and put all th

Title Link: Checkerboard IssuesParsing: DFS violence searches from top to bottom, from left to right.AC Code:Code 1#include Code 2#include Copyright NOTICE: This article is sxk original article, reprint please attach this article link ^_^ POJ 1321 Checkerboard Problem (DFS)

Title Link: POJ 1321 checkerboard Problem Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 28825 Accepted: 14276 DescriptionIn a given shape of the chessboard (the shape may be irregular) on the top of the pieces, chess pieces no difference. If you need to place any of the two pieces in the same row or column in the chessboard, please program the chessboard with a given shape an

Checkerboard Issues Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 24958 Accepted: 12333 Descriptionin a given shape of the chessboard (the shape may be irregular) on the top of the pieces, chess pieces no difference. If you need to place any of the two pieces in the same row or column in the chessboard, please program the chessboard with a given shape and size, and put all th

Checkerboard Issues Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 29121 Accepted: 14434 DescriptionIn a given shape of the chessboard (the shape may be irregular) on the top of the pieces, chess pieces no difference. If you need to place any of the two pieces in the same row or column in the chessboard, please program the chessboard with a given shape and size, and put all th

F-Checkerboard Issues Time limit:1000MS Memory Limit:10000KB 64bit IO Format:%i64d %i64 U Submit Status Practice POJ 1321 DescriptionIn a given shape of the chessboard (the shape may be irregular) on the top of the pieces, chess pieces no difference. If you need to place any of the two pieces in the same row or column in the chessboard, please program the chessboard with a given shape and size, and put all the feasible arrangement C fo

Topic Portal1 /*2 DFS: Because only one row or column is placed, you can enumerate from which line to start, Dfs put pieces, the same column can only have one3 */4#include 5#include 6#include 7 using namespacestd;8 9 Charmaze[Ten][Ten];Ten BOOLvis[Ten]; One intN, K, ans; A - voidDasointXintnum) { - for(intI=1; ii) { the if(Maze[x][i] = ='#'!Vis[i]) { - if(num = =1) ans++; - Else { -Vis[i] =true; + for(intj=x+1; j2; ++j) { -DFS (J, num-1);

Checkerboard Issues Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 28733 Accepted: 14220 DescriptionIn a given shape of the chessboard (the shape may be irregular) on the top of the pieces, chess pieces no difference. If you need to place any of the two pieces in the same row or column in the chessboard, please program the chessboard with a given shape and size, and put all th

Checkerboard Issues Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 28461 Accepted: 14076 DescriptionIn a given shape of the chessboard (the shape may be irregular) on the top of the pieces, chess pieces no difference. If you need to place any of the two pieces in the same row or column in the chessboard, please program the chessboard with a given shape and size, and put all th

Checkerboard Issues Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 28067 Accepted: 13874 DescriptionIn a given shape of the chessboard (the shape may be irregular) on the top of the pieces, chess pieces no difference. If you need to place any of the two pieces in the same row or column in the chessboard, please program the chessboard with a given shape and size, and put all th

,0x00,0x00,0xFF,0xFF,0x00,0x00, 0xFF,0xFF,0x00,0x00,0xFF,0xFF,0x00,0x00, 0xFF,0xFF,0x00,0x00,0xFF,0xFF,0x00,0x00, 0xFF,0xFF,0x00,0x00,0xFF,0xFF,0x00,0x00, }; Glenable (gl_polygon_stipple); Glpolygonstipple (fly); GLRECTF (50.0f,100.0f,150.0f,50.0f); } glutswapbuffers ();//Swap command Buffers}voidProcessmenu (intvalue) {IMode=value; Glutpostredisplay ();}intMainintargcChar*argv[]) {Glutinit (argc, argv); Glutinitdisplaymode (glut_