Main.cc:236: error: in C++98 'solution::ERR' must be initialized by constructor, not by '{...}'
Main.cc: In function 'solution::i64 solution::solve()':
Main.cc:260: error: expected primary-expression before '[' token
Main.cc:260: error: expected primary-expression before ']' token
Main.cc:260: error: expected primary-expression before 'const'
Main.cc:260: error: expected primary-expression before 'const'