运行 ID: 140859

Main.cc: In function ‘int main()’:
Main.cc:22:14: error: ‘ma’ was not declared in this scope
   mx = max ( ma , dp [i] ) ;
              ^~
Main.cc:22:14: note: suggested alternative: ‘mx’
   mx = max ( ma , dp [i] ) ;
              ^~
              mx