 Game of Pawns

On the chess board, the poor little pawns are put out in front right in harms way while the other guys are hiding back behind.But according the chess rules, if a pawn can make it to the other side, it will be rewarded with a promotion  to a queen! Noting this, EZ invents a new kind of singleplayer game.
At the beginning of the game, EZ puts 8 black pawns on the first rank(see the figure below), and then places some enemy on the board. He wonder how many of them can become queens at most.
Here are some rules in this game about the move of the pawn. You can see more detail in Rules of Chess
A pawn can move forward one square, if that square is unoccupied. If it has not yet moved, the pawn has the option of moving two squares forward provided both squares in front of the pawn are unoccupied. A pawn cannot move backward.
Pawns are the only pieces that capture differently from how they move. They can capture an enemy piece on either of the two spaces adjacent to the space in front of them (i.e., the two squares diagonally in front of them) but cannot move to these spaces if they are vacant.
If a pawn advances to its eighth rank,it is then promoted to a queen. In this very game, once a pawn has been promoted to a queen, it would stay there for the rest of the game.
Since this is a singleplayer game, the enemy would stay where they are during the whole game(unless they had been captured).
InputThere are multiple cases (no more than 30). The first line of each test case contains an integer N, indicating the number of enemys on the board. (0 <= N <= 16) Then N lines followed, each line contains two character cr ('a' <= c <= 'h', '1' < r <= '8'), which is the loction of the ith enemy.
Output
For each case, output the maximum number of pawns that can be promoted to queens in a single line.
Sample Input
2
a2
b2
3
a2
b2
e5
3
a2
b2
b3
Sample Output8
7
8
Deeper Blue _course
20170911Introduction When trying to avoid conflict and maintain peace, a good strategy is to remove the elements that cause the most trouble. IBM is using its Deep Blue machine to try to study this strategy by modeling it with a game of chess. IBM needs a program to find the minimum number of chess pieces that must be removed from a chessboard in order for none of the pieces to be attacking each other. All pieces will have the standard attack movements for that chess piece. King  Can attack the adjacent space in any direction. Up, down, left, right and diagonally. Queen  Can attack any number of spaces in any direction. Up, down, left, right and diagonally. Bishop  Can attack any number of spaces diagonally. Rook  Can attack any number of spaces up, down, left, or right but not diagonally. Pawns  There won't be any pawns. Knight  Can attack with their usual 'L' shaped movement. Up twice and right once, up once and left twice, etc... Here is a diagram, which demonstrates the movement of a knight.    * *     *   *      N      *   *     * *    N = Knight * = Square that the knight can attack Input Input to this problem will consist of a (nonempty) series of up to 100 data sets. Each data set will be formatted according to the following description, and there will be no blank lines separating data sets. The maximum dimensions of the board are 10 squares wide by 10 squares high. The maximum number of chess pieces that will start out on the board is 15. A single data set has 5 components: Start line  A single line, "START" Board Width (# of columns)  A single line containing a positive integer, w, indicating the number of squares across the width of the board where 1 <= w <= 10. Board Height (# of rows)  A single line containing a positive integer, h, indicating the number of squares that dictate the height of the board, where 1 <= h <= 10. Board Layout  h lines, each corresponding to a row of the board. The first line corresponds to the first row, the second line to the second row, and so on. Each row consists of a spaceseparated list of single letters, each representing the contents of the corresponding square on the board according to the following list: K  King Q  Queen R  Rook B  Bishop N  Knight E  Empty Square End line  A single line, "END" Output For each data set, there will be exactly one output set, and there will be no blank lines separating output sets. A single output set consists of a single line, "Minimum Number of Pieces to be removed: X", where X is the minimum number of pieces that must be removed from the board such that none of the remaining pieces are attacking any other remaining piece. Sample Input START 3 3 K E K E Q E K E K END START 8 8 E E E E E E E E E B E K E E N E E E E E N E E E E E E E E E E R B E Q E E E E E E E E E E Q E E E E E E E B E E E B E R E E E E END Sample Output Minimum Number of Pieces to be removed: 1 Minimum Number of Pieces to be removed: 5
N个骑士的问题，方块涂色，采用C语言解决的思路是什么_course
20190218Problem Description Today, chess is one of the world's most popular games, played by millions of people worldwide at home, in clubs, online, by correspondence, and in tournaments. Chess is played on a square board of eight rows and eight columns and denoted with letters a to h of squares. The colors of the sixtyfour squares alternate and are referred to as "light squares" and "dark squares". The chessboard is placed with a light square at the right hand end of the rank nearest to each player, and the pieces are set out as shown in the diagram, with each queen on its own color. The pieces are divided, by convention, into white and black sets. The players are referred to as "White" and "Black", and each begins the game with sixteen pieces of the specified color. These consist of one king, one queen, two rooks, two bishops, two knights and eight pawns. Now we have another way to play with the chessboard. Give you a N*N chessboard, and ask you to place N knights on it. But the knights can’t attack each other (one knight can attack other chessman in the same row or in the column). And what’s more, no more than M knights are permissible to put on the reverse diagonal (the black grids as following picture). Now ask you how many different ways you can place this N Knight. Input Input contains multiple cases each presented on a separate line. Each line contains two integer numbers N,M(1<=N<=1000,0<=M<=N). Output For each test case, your program should output the answer mod 20090818. Sample Input 1 1 Sample Output 1
N Knight 代码编写过程_course
20191122Problem Description Today, chess is one of the world's most popular games, played by millions of people worldwide at home, in clubs, online, by correspondence, and in tournaments. Chess is played on a square board of eight rows and eight columns and denoted with letters a to h of squares. The colors of the sixtyfour squares alternate and are referred to as "light squares" and "dark squares". The chessboard is placed with a light square at the right hand end of the rank nearest to each player, and the pieces are set out as shown in the diagram, with each queen on its own color. The pieces are divided, by convention, into white and black sets. The players are referred to as "White" and "Black", and each begins the game with sixteen pieces of the specified color. These consist of one king, one queen, two rooks, two bishops, two knights and eight pawns. Now we have another way to play with the chessboard. Give you a N*N chessboard, and ask you to place N knights on it. But the knights can’t attack each other (one knight can attack other chessman in the same row or in the column). And what’s more, no more than M knights are permissible to put on the reverse diagonal (the black grids as following picture). Now ask you how many different ways you can place this N Knight. Input Input contains multiple cases each presented on a separate line. Each line contains two integer numbers N,M(1<=N<=1000,0<=M<=N). Output For each test case, your program should output the answer mod 20090818. Sample Input 1 1 Sample Output 1
King’s Case 象棋问题_course
20200302Problem Description As you maybe know, Chess is a board game played between two players. It is played on a chessboard, which is a squarecheckered board with 64 squares arranged in an eightbyeight grid. At the start, each player controls sixteen pieces: one king, one queen, two rooks, two knights, two bishops, and eight pawns. The object of the game is to checkmate the opponent's king, whereby the king is under immediate attack (in "check") and there is no way to remove or defend it from attack on the next move. The board has eight rows (called ranks and denoted with numbers 1 to 8) and eight columns (called files and denoted with letters a to h). White always moves first. After the initial move, the players alternately move one piece at a time (with the exception of castling, when two pieces are moved). Pieces are moved to either an unoccupied square, or one occupied by an opponent's piece, capturing it and removing it from play. With the sole exception of en passant, all pieces capture opponent's pieces by moving to the square that the opponent's piece occupies. (In this problem, there will not be ‘en passant’, ‘Castling’ or ‘Promotion’. This simplifies the problem a little.) Each chess piece has its own style of moving. ● The king moves one square in any direction. The king has also a special move which is called castling and also involves a rook, but not in this problem! ● The rook can move any number of squares along any rank or file, but may not leap over other pieces. Along with the king, the rook is also involved during the king's castling move, but not in this problem! ● The bishop can move any number of squares diagonally, but may not leap over other pieces. ● The queen combines the power of the rook and bishop and can move any number of squares along rank, file, or diagonal, but it may not leap over other pieces. ● The knight moves to any of the closest squares which are not on the same rank, file or diagonal, thus the move forms an "L"shape two squares long and one square wide. The knight is the only piece which can leap over other pieces. ● The pawn may move forward to the unoccupied square immediately in front of it on the same file, or on its first move it may advance two squares along the same file provided both squares are unoccupied, or it may move to a square occupied by an opponent’s piece, which is diagonally in front of it on an adjacent file, capturing that piece. The pawn has two special moves, the en passant capture, and pawn promotion, but not in this problem! Just as you see, the white pawn move upward and the black pawn move downward. A player may not make any move which allows the King to be captured. If such a move is not possible, the game ends. The result will be a checkmate, if king is under immediate attack or stalemate, if it is not. Wikipedia. The question your program should answer is when a player makes a move, determine the result of the move. The result can be one of these, Checkmate! This move result a win. Draw This move result a stalemate Check! The game has not finished yet, but this move is a check Just a normal move The game has not finished yet, and this move is not a check This is not a legal move This is happened when move a piece not belongs to it, want to eat a piece belongs to it, want to move a piece not under the style of that kind of piece, when you under check that move is not a right response or after that move you king will be capture. Input The input will consist of one or more test cases. The first line of the input will be a single integer T, indicates the number of the cases. Each test case adheres to the following format: ● On the first line there will be “White makes a move” or “Black makes a move”. ● On the second line have two positions indicate the move from and to. The position is such is “e4”, in a lowercase character ‘a’ to ‘h’ and a number from 1 to 8. So the positions are always in the board. ● On the next 8 lines will represent the board before the move. ● The Black pieces will be represented by uppercase characters. K for King, Q for Queen, R for Rook, B for Bishop, N for Knight, P for Pawn. The White pieces will be represented by lowercase characters, just like the Blacks. You may assume the board before move is legal and the game have not finished yet. Squares has no piece in is represented by ‘.’. There is not white line between cases. Output Output “Checkmate!”, “Draw”, “Check!”, “Just a normal move” or “This is not a legal move” in a line. Sample Input 2 White makes a move e2 e4 RNBQKBNR PPPPPPPP ........ ........ ........ ........ pppppppp rnbqkbnr Black makes a move b8 b1 .R....K. .....PPP ........ ......r. ........ ........ .....ppp ......k. Sample Output Just a normal move Checkmate!
King’s Case 国际象棋问题_course
20191231Problem Description As you maybe know, Chess is a board game played between two players. It is played on a chessboard, which is a squarecheckered board with 64 squares arranged in an eightbyeight grid. At the start, each player controls sixteen pieces: one king, one queen, two rooks, two knights, two bishops, and eight pawns. The object of the game is to checkmate the opponent's king, whereby the king is under immediate attack (in "check") and there is no way to remove or defend it from attack on the next move. The board has eight rows (called ranks and denoted with numbers 1 to 8) and eight columns (called files and denoted with letters a to h). White always moves first. After the initial move, the players alternately move one piece at a time (with the exception of castling, when two pieces are moved). Pieces are moved to either an unoccupied square, or one occupied by an opponent's piece, capturing it and removing it from play. With the sole exception of en passant, all pieces capture opponent's pieces by moving to the square that the opponent's piece occupies. (In this problem, there will not be ‘en passant’, ‘Castling’ or ‘Promotion’. This simplifies the problem a little.) Each chess piece has its own style of moving. ● The king moves one square in any direction. The king has also a special move which is called castling and also involves a rook, but not in this problem! ● The rook can move any number of squares along any rank or file, but may not leap over other pieces. Along with the king, the rook is also involved during the king's castling move, but not in this problem! ● The bishop can move any number of squares diagonally, but may not leap over other pieces. ● The queen combines the power of the rook and bishop and can move any number of squares along rank, file, or diagonal, but it may not leap over other pieces. ● The knight moves to any of the closest squares which are not on the same rank, file or diagonal, thus the move forms an "L"shape two squares long and one square wide. The knight is the only piece which can leap over other pieces. ● The pawn may move forward to the unoccupied square immediately in front of it on the same file, or on its first move it may advance two squares along the same file provided both squares are unoccupied, or it may move to a square occupied by an opponent’s piece, which is diagonally in front of it on an adjacent file, capturing that piece. The pawn has two special moves, the en passant capture, and pawn promotion, but not in this problem! Just as you see, the white pawn move upward and the black pawn move downward. A player may not make any move which allows the King to be captured. If such a move is not possible, the game ends. The result will be a checkmate, if king is under immediate attack or stalemate, if it is not. Wikipedia. The question your program should answer is when a player makes a move, determine the result of the move. The result can be one of these, Checkmate! This move result a win. Draw This move result a stalemate Check! The game has not finished yet, but this move is a check Just a normal move The game has not finished yet, and this move is not a check This is not a legal move This is happened when move a piece not belongs to it, want to eat a piece belongs to it, want to move a piece not under the style of that kind of piece, when you under check that move is not a right response or after that move you king will be capture. Input The input will consist of one or more test cases. The first line of the input will be a single integer T, indicates the number of the cases. Each test case adheres to the following format: ● On the first line there will be “White makes a move” or “Black makes a move”. ● On the second line have two positions indicate the move from and to. The position is such is “e4”, in a lowercase character ‘a’ to ‘h’ and a number from 1 to 8. So the positions are always in the board. ● On the next 8 lines will represent the board before the move. ● The Black pieces will be represented by uppercase characters. K for King, Q for Queen, R for Rook, B for Bishop, N for Knight, P for Pawn. The White pieces will be represented by lowercase characters, just like the Blacks. You may assume the board before move is legal and the game have not finished yet. Squares has no piece in is represented by ‘.’. There is not white line between cases. Output Output “Checkmate!”, “Draw”, “Check!”, “Just a normal move” or “This is not a legal move” in a line. Sample Input 2 White makes a move e2 e4 RNBQKBNR PPPPPPPP ........ ........ ........ ........ pppppppp rnbqkbnr Black makes a move b8 b1 .R....K. .....PPP ........ ......r. ........ ........ .....ppp ......k. Sample Output Just a normal move Checkmate!
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