[백준 1063] 킹 (Simulation) (C/C++)

#include <stdio.h>
#include <iostream>
#include <algorithm>
#include <string>
using namespace std;
 
int N;
int kingX, kingY;
int stoneX, stoneY;
 
int safe(int x, int y)
{
    if(x >= 0 && y >= 0 && x < 8 && y < 8)
    {
        return 1;
    }
    else
    {
        return 0;
    }
}
 
void execute(string command)
{
    if(command == "B")
    {
        if(safe(kingX-1, kingY) == 1)
        {
            kingX -= 1;    
            
            if(kingX == stoneX && kingY == stoneY)
            {
                if(safe(stoneX-1, stoneY) == 1)
                {
                    stoneX -= 1;    
                }
                else
                {
                    kingX += 1;
                }
            }
        }
    }
    else if(command == "T")
    {
        if(safe(kingX+1, kingY) == 1)
        {
            kingX += 1;    
            
            if(kingX == stoneX && kingY == stoneY)
            {
                if(safe(stoneX+1, stoneY) == 1)
                {
                    stoneX += 1;    
                }
                else
                {
                    kingX -= 1;
                }
            }
        }
    }
    else if(command == "R")
    {
        if(safe(kingX, kingY+1) == 1)
        {
            kingY += 1;    
            
            if(kingX == stoneX && kingY == stoneY)
            {
                if(safe(stoneX, stoneY+1) == 1)
                {
                    stoneY += 1;    
                }
                else
                {
                    kingY -= 1;
                }
            }
        }
    }
    else if(command == "L")
    {
        if(safe(kingX, kingY-1) == 1)
        {
            kingY -= 1;    
            
            if(kingX == stoneX && kingY == stoneY)
            {
                if(safe(stoneX, stoneY-1) == 1)
                {
                    stoneY -= 1;    
                }
                else
                {
                    kingY += 1;
                }
            }
        }
    }
    else if(command == "RT")
    {
        if(safe(kingX+1, kingY+1) == 1)
        {
            kingX += 1;
            kingY += 1;    
            
            if(kingX == stoneX && kingY == stoneY)
            {
                if(safe(stoneX+1, stoneY+1) == 1)
                {
                    stoneX += 1;
                    stoneY += 1;    
                }
                else
                {
                    kingX -= 1;
                    kingY -= 1;
                }
            }
        }
    }
    else if(command == "LT")
    {
        if(safe(kingX+1, kingY-1) == 1)
        {
            kingX += 1;
            kingY -= 1;    
            
            if(kingX == stoneX && kingY == stoneY)
            {
                if(safe(stoneX+1, stoneY-1) == 1)
                {
                    stoneX += 1;
                    stoneY -= 1;    
                }
                else
                {
                    kingX -= 1;
                    kingY += 1;
                }
            }
        }
    }
    else if(command == "RB")
    {
        if(safe(kingX-1, kingY+1) == 1)
        {
            kingX -= 1;
            kingY += 1;    
            
            if(kingX == stoneX && kingY == stoneY)
            {
                if(safe(stoneX-1, stoneY+1) == 1)
                {
                    stoneX -= 1;
                    stoneY += 1;    
                }
                else
                {
                    kingX += 1;
                    kingY -= 1;
                }
            }
        }
    }
    else if(command == "LB")
    {
        if(safe(kingX-1, kingY-1) == 1)
        {
            kingX -= 1;
            kingY -= 1;
            
            if(kingX == stoneX && kingY == stoneY)
            {
                if(safe(stoneX-1, stoneY-1) == 1)
                {
                    stoneX -= 1;
                    stoneY -= 1;    
                }
                else
                {
                    kingX += 1;
                    kingY += 1;
                }
            }
        }
    }
}
 
int main(void)
{
//    freopen("B1063_input.txt", "r", stdin);
    
    string king, stone;
    
    cin >> king >> stone >> N;
    
    kingX = king[1]-'1';
    kingY = king[0]-'A';
    
    stoneX = stone[1]-'1';
    stoneY = stone[0]-'A';
    
    for(int i = 1; i <= N; i++)
    {
        string command;
        cin >> command;
        
        execute(command);    
    }
    
    cout << char(kingY+'A') << char(kingX+'1') << endl;
    cout << char(stoneY+'A') << char(stoneX+'1');
    
    return 0;
}