Compilare: user.cpp: In member function ‘void Table::set_score(int, int)’: user.cpp:111:19: warning: suggest parentheses around arithmetic in operand of ‘|’ [-Wparentheses] stats = stats ^ ( (long long)score( p ) << ( 2 | ( p << 4 ) ) ) | ( (long long)val << ( 2 | ( p << 4 ) ) ); ^ user.cpp: In member function ‘void Table::set_king(int, int)’: user.cpp:121:19: warning: suggest parentheses around arithmetic in operand of ‘|’ [-Wparentheses] stats = stats ^ ( stats & 1 << p ) | ( val << p ); ^ user.cpp: In member function ‘bool Table::isCheckMate() const’: user.cpp:240:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( i = 0; i < aux.size(); i ++ ) { ^ user.cpp:248:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if ( i == aux.size() ) ^ user.cpp: In member function ‘bool Table::isCheck() const’: user.cpp:537:17: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] && ( y != 7 && slot( px, y + 1 ) == Table::Pawn * 2 + !to_move ^ user.cpp: In function ‘int negamax(int, Table&, int, int)’: user.cpp:618:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int i = 0; i < aux.size(); i ++ ) { ^ user.cpp:649:49: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int i = 0; i < opp_moves.size(); i ++ ) { ^ user.cpp:662:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int i = 0; i < aux.size(); i ++ ) { ^ user.cpp:680:45: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int i = 0; i < next_move.size(); i ++ ) { ^ user.cpp:684:77: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] alpha = max( alpha, -negamax( d - 1 - ( i * 4 >= next_move.size() ) - ( d > 2 && i * 2 >= next_move.size() ), m, -beta, -alpha ) ); ^ user.cpp:684:118: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] alpha = max( alpha, -negamax( d - 1 - ( i * 4 >= next_move.size() ) - ( d > 2 && i * 2 >= next_move.size() ), m, -beta, -alpha ) ); ^ user.cpp: In function ‘int main()’: user.cpp:729:32: warning: array subscript has type ‘char’ [-Wchar-subscripts] t.push( conv[str[0]] * 2 + str[1] - '0', x, y ); ^ user.cpp:737:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int i = 0; i < aux.size(); i ++ ) { ^ user.cpp:758:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int i = 0; i < aux.size(); i ++ ) { ^ user.cpp: In member function ‘bool Table::isCheckMate() const’: user.cpp:250:1: warning: control reaches end of non-void function [-Wreturn-type]