模拟 + 暴搜 --- Help Me with the Game

Help Me with the Game

Time Limit: 1000MS		Memory Limit: 65536K
Total Submissions: 3175		Accepted: 2053

Description

Your task is to read a picture of a chessboard position and print it in the chess notation.

Input

The input consists of an ASCII-art picture of a chessboard with chess pieces on positions described by the input. The pieces of the white player are shown in upper-case letters, while the black player's pieces are lower-case letters. The letters are one of "K" (King), "Q" (Queen), "R" (Rook), "B" (Bishop), "N" (Knight), or "P" (Pawn). The chessboard outline is made of plus ("+"), minus ("-"), and pipe ("|") characters. The black fields are filled with colons (":"), white fields with dots (".").

Output

The output consists of two lines. The first line consists of the string "White: ", followed by the description of positions of the pieces of the white player. The second line consists of the string "Black: ", followed by the description of positions of the pieces of the black player.

The description of the position of the pieces is a comma-separated list of terms describing the pieces of the appropriate player. The description of a piece consists of a single upper-case letter that denotes the type of the piece (except for pawns, for that this identifier is omitted). This letter is immediatelly followed by the position of the piece in the standard chess notation -- a lower-case letter between "a" and "h" that determines the column ("a" is the leftmost column in the input) and a single digit between 1 and 8 that determines the row (8 is the first row in the input).

The pieces in the description must appear in the following order: King("K"), Queens ("Q"), Rooks ("R"), Bishops ("B"), Knights ("N"), and pawns. Note that the numbers of pieces may differ from the initial position because of capturing the pieces and the promotions of pawns. In case two pieces of the same type appear in the input, the piece with the smaller row number must be described before the other one if the pieces are white, and the one with the larger row number must be described first if the pieces are black. If two pieces of the same type appear in the same row, the one with the smaller column letter must appear first.

Sample Input

+---+---+---+---+---+---+---+---+
|.r.|:::|.b.|:q:|.k.|:::|.n.|:r:|
+---+---+---+---+---+---+---+---+
|:p:|.p.|:p:|.p.|:p:|.p.|:::|.p.|
+---+---+---+---+---+---+---+---+
|...|:::|.n.|:::|...|:::|...|:p:|
+---+---+---+---+---+---+---+---+
|:::|...|:::|...|:::|...|:::|...|
+---+---+---+---+---+---+---+---+
|...|:::|...|:::|.P.|:::|...|:::|
+---+---+---+---+---+---+---+---+
|:P:|...|:::|...|:::|...|:::|...|
+---+---+---+---+---+---+---+---+
|.P.|:::|.P.|:P:|...|:P:|.P.|:P:|
+---+---+---+---+---+---+---+---+
|:R:|.N.|:B:|.Q.|:K:|.B.|:::|.R.|
+---+---+---+---+---+---+---+---+

Sample Output

White: Ke1,Qd1,Ra1,Rh1,Bc1,Bf1,Nb1,a2,c2,d2,f2,g2,h2,a3,e4
Black: Ke8,Qd8,Ra8,Rh8,Bc8,Ng8,Nc6,a7,b7,c7,d7,e7,f7,h7,h6

【题目来源】

CTU Open 2005

http://poj.org/problem?id=2996

【题目大意】
读入一张棋盘。白棋用大写字母表示，黑棋用小写字母表示。
其中各个字母的含义：K(国王)、Q(女王)、R(车),B(主教)、N(骑士)、P(兵)。
小写字母a到h表示列，数字1到8表示行。
输出对应的棋子的名称和坐标。注意：兵(P)不用输出名称。

【题目分析】

题目本来很简单，但是如果方法选的不恰当，再简单的题目也会变得很难，所以说做题还是要将大部分的时间花在思考上，而不是写代码上。

这题就是一个简单的模拟+暴搜，没有任何技巧。

思路清晰，就很容易1A。

我看网上有的人写了260多行，狂晕。

#include<cstdio>
char Map[35][35];

void find1(char c)
{
    for(int i=1;i<=17;i++)
        for(int j=1;j<=33;j++)
        {
            if(Map[i][j]==c)
            {
                if(c>='A'&&c<='Z') printf("%c",c);
                else printf("%c",c-32);
                printf("%c%d,",'a'+j/4,i/2);
            }
        }
}

void find2(char c)
{
    for(int i=17;i>=1;i--)
        for(int j=1;j<=33;j++)
        {
            if(Map[i][j]==c)
            {
                if(c>='A'&&c<='Z') printf("%c",c);
                else printf("%c",c-32);
                printf("%c%d,",'a'+j/4,i/2);
            }
        }
}

void find_write()
{
    find1('K');
    find1('Q');
    find1('R');
    find1('B');
    find1('N');
    int flag=0;
    for(int i=1;i<=17;i++)
        for(int j=1;j<=33;j++)
        {
           if(Map[i][j]=='P')
           {
               if(flag)
                 printf(",%c%d",'a'+j/4,i/2);
               else printf("%c%d",'a'+j/4,i/2);
               flag++;
           }
        }
        puts("");
}

void find_black()
{
    find2('k');
    find2('q');
    find2('r');
    find2('b');
    find2('n');
    int flag=0;
    for(int i=17;i>=1;i--)
        for(int j=1;j<=33;j++)
        {
            if(Map[i][j]=='p')
            {
               if(flag)
                 printf(",%c%d",'a'+j/4,i/2);
               else printf("%c%d",'a'+j/4,i/2);
               flag++;
            }
        }
        puts("");
}

int main()
{
    while(scanf("%s",Map[17]+1)!=EOF)
    {
        for(int i=16;i>=1;i--)
            scanf("%s",Map[i]+1);
        printf("White: " );
        find_write();
        printf("Black: " );
        find_black();
    }
    return 0;
}