【POJ2993】Emag eht htiw Em Pleh

题目传送门

本题知识点：模拟（如果对国际象棋不熟悉的同学可以先百度一下）

本题跟POJ2996是逆过来的操作，如果做过【POJ2996】的同学就不会对题意不理解的了。

（以下默认您已AC【POJ2996】）

个人觉得该题比【POJ2996】要麻烦一点，因为要创建一个棋盘（其实也不是什么麻烦事）

创好棋盘后，再把棋子一个个地放回去就可以了，这步操作跟【POJ2996】有异曲同工之妙

数据很小（快乐水题）

#include<iostream>
#include<cstdio>
#include<string>
using namespace std;
const int H = 17;
const int W = 33;
char chess[40][40];
string white, black;
struct node{
    string pla;
}w[20], b[20];

void build(){
    for(int i = 1; i <= H; i++){
        if(i % 2 == 1){
            for(int j = 1; j <= W; j++){
                if(j % 4 == 1) chess[i][j] = '+';
                else chess[i][j] = '-';
            }
        }
        else if(i % 4 == 2){
            for(int j = 1; j <= W; ){
                if(j % 4 == 1) {
                    chess[i][j] = '|';
                    j += 3;
                }
                else {
                    if(j % 8 == 4){
                        chess[i][j] = chess[i][j - 1] = chess[i][j - 2] = '.';
                        j++;
                    }
                    else {
                        chess[i][j] = chess[i][j - 1] = chess[i][j - 2] = ':';
                        j++;
                    }
                }
            }
        }
        else if(i % 2 == 0){
            for(int j = 1; j <= W; ){
                if(j % 4 == 1) {
                    chess[i][j] = '|';
                    j += 3;
                }
                else {
                    if(j % 8 == 4){
                        chess[i][j] = chess[i][j - 1] = chess[i][j - 2] = ':';
                        j++;
                    }
                    else {
                        chess[i][j] = chess[i][j - 1] = chess[i][j - 2] = '.';
                        j++;
                    }
                }
            }
        }
    }
}

char turn(char x){
    if('A' <= x && x <= 'Z')
        x += 32;
    return x;
}

int main()
{
    build();

    getline(cin, white);
    // White
    int cnt_w = 0, h, w;
    for(int i = 7; i < white.size(); ){
        if(white[i] == 'K' || white[i] == 'Q' || white[i] == 'R' || white[i] == 'B' || white[i] == 'N'){
            w = (white[i + 1] - 'a') * 4 + 3;
            char ch = white[i + 2];
            if(ch == '1') h = 16;
            else if(ch == '2') h = 14;
            else if(ch == '3') h = 12;
            else if(ch == '4') h = 10;
            else if(ch == '5') h = 8;
            else if(ch == '6') h = 6;
            else if(ch == '7') h = 4;
            else if(ch == '8') h = 2;
            chess[h][w] = white[i];
            i += 4;
        }
        else {
            w = (white[i] - 'a') * 4 + 3;
            char ch = white[i + 1];
            if(ch == '1') h = 16;
            else if(ch == '2') h = 14;
            else if(ch == '3') h = 12;
            else if(ch == '4') h = 10;
            else if(ch == '5') h = 8;
            else if(ch == '6') h = 6;
            else if(ch == '7') h = 4;
            else if(ch == '8') h = 2;
            chess[h][w] = 'P';
            i += 3;
        }
    }

    getline(cin, black);
    // Black
    int cnt_b = 0;
    for(int i = 7; i < black.size(); ){
        if(black[i] == 'K' || black[i] == 'Q' || black[i] == 'R' || black[i] == 'B' || black[i] == 'N'){
            w = (black[i + 1] - 'a') * 4 + 3;
            char ch = black[i + 2];
            if(ch == '1') h = 16;
            else if(ch == '2') h = 14;
            else if(ch == '3') h = 12;
            else if(ch == '4') h = 10;
            else if(ch == '5') h = 8;
            else if(ch == '6') h = 6;
            else if(ch == '7') h = 4;
            else if(ch == '8') h = 2;
            char b = turn(black[i]);
            chess[h][w] = b;
            i += 4;
        }
        else {
            w = (black[i] - 'a') * 4 + 3;
            char ch = black[i + 1];
            if(ch == '1') h = 16;
            else if(ch == '2') h = 14;
            else if(ch == '3') h = 12;
            else if(ch == '4') h = 10;
            else if(ch == '5') h = 8;
            else if(ch == '6') h = 6;
            else if(ch == '7') h = 4;
            else if(ch == '8') h = 2;
            chess[h][w] = 'p';
            i += 3;
        }
    }

    for(int i = 1; i <= H; i++) printf("%s\n", chess[i] + 1);

    return 0;
}