PROG-T1034: Reversi

#include <iostream>
#include <vector>
using namespace std;

typedef struct pos{
    int row;
    int col;
    pos operator = (const pos &rhs){
        row = rhs.row;
        col = rhs.col;
    }
}pos;

/// U UR R DR D DL L UL
pos ctrl[8] = {{-1, 0}, {-1, 1}, {0, 1}, {1, 1}, {1, 0}, {1, -1}, {0, -1}, {-1, -1}};
vector<vector<int>> table(9, vector<int>(9, 0)); /// B = 1 W = 2

void PrintTable(){
    for(int i = 1; i <= 8; ++i){
        for(int j = 1; j <= 8; ++j){
            switch(table[i][j]){
            case 0:
                cout << ".";
                break;
            case 1:
                cout << "X";
                break;
            case 2:
                cout << "O";
                break;
            }
        }
        cout << "\n";
    }
    return;
}

int main(){

    int r, p, row;
    char col;
    bool found;
    pos tr, c;

    table[4][5] = 1;
    table[5][4] = 1;
    table[4][4] = 2;
    table[5][5] = 2;

    scanf("%d", &r);
    for(int i = 1; i <= r; ++i){
        if(i % 2 == 0){
            p = 2;
        } else {
            p = 1;
        }
        scanf(" %c", &col);
        scanf("%d", &row);
        tr = {row, col - 'a' + 1};
        table[tr.row][tr.col] = p;
        for(int j = 0; j < 8; ++j){
            c = {tr.row + ctrl[j].row, tr.col + ctrl[j].col};
            found = false;
            while(c.row > 0 && c.row <= 8 && c.col > 0 && c.col <= 8){
                if(table[c.row][c.col] == 0){
                    break;
                } else if(table[c.row][c.col] == p){
                    found = true;
                    break;
                }
                c.row += ctrl[j].row;
                c.col += ctrl[j].col;
            }
            if(found){ /// Reverse
                c.row -= ctrl[j].row;
                c.col -= ctrl[j].col;
                while(c.row != tr.row || c.col != tr.col){
                    if(table[c.row][c.col] == 3 - p){
                        table[c.row][c.col] = p;
                    }
                    c.row -= ctrl[j].row;
                    c.col -= ctrl[j].col;
                }
            }
        }
    }
    PrintTable();

    return 0;
}