Compilare: main.cpp: In function 'bool checkMate(int (*)[9], const string&)': main.cpp:130:15: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses] if(board[conv.first][j] != 0) ^ main.cpp:137:15: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses] if(board[conv.first][j] != 0) ^ main.cpp:145:43: warning: logical not is only applied to the left hand side of comparison [-Wlogical-not-parentheses] if(!board[i][conv.second] == -sign * 2 and !board[i][conv.second] == -sign * 3) ^~ main.cpp:145:83: warning: logical not is only applied to the left hand side of comparison [-Wlogical-not-parentheses] if(!board[i][conv.second] == -sign * 2 and !board[i][conv.second] == -sign * 3) ^~ main.cpp:144:13: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses] if(board[i][conv.second] != 0) ^ main.cpp:151:43: warning: logical not is only applied to the left hand side of comparison [-Wlogical-not-parentheses] if(!board[i][conv.second] == -sign * 2 and !board[i][conv.second] == -sign * 3) ^~ main.cpp:151:83: warning: logical not is only applied to the left hand side of comparison [-Wlogical-not-parentheses] if(!board[i][conv.second] == -sign * 2 and !board[i][conv.second] == -sign * 3) ^~ main.cpp:150:13: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses] if(board[i][conv.second] != 0) ^ main.cpp:168:30: warning: logical not is only applied to the left hand side of comparison [-Wlogical-not-parentheses] if (!board[i][j] == -sign * 3 and !board[i][j] == -sign * 4) ^~ main.cpp:168:60: warning: logical not is only applied to the left hand side of comparison [-Wlogical-not-parentheses] if (!board[i][j] == -sign * 3 and !board[i][j] == -sign * 4) ^~ main.cpp:167:13: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses] if(board[i][j] != 0) ^ main.cpp:175:30: warning: logical not is only applied to the left hand side of comparison [-Wlogical-not-parentheses] if (!board[i][j] == -sign * 3 and !board[i][j] == -sign * 4) ^~ main.cpp:175:60: warning: logical not is only applied to the left hand side of comparison [-Wlogical-not-parentheses] if (!board[i][j] == -sign * 3 and !board[i][j] == -sign * 4) ^~ main.cpp:174:13: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses] if(board[i][j] != 0) ^ main.cpp:183:30: warning: logical not is only applied to the left hand side of comparison [-Wlogical-not-parentheses] if (!board[i][j] == -sign * 3 and !board[i][j] == -sign * 4) ^~ main.cpp:183:60: warning: logical not is only applied to the left hand side of comparison [-Wlogical-not-parentheses] if (!board[i][j] == -sign * 3 and !board[i][j] == -sign * 4) ^~ main.cpp:182:13: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses]