运行 ID: 39764

Main.cc: In function ‘int main()’:
Main.cc:8:5: error: ‘dx’ was not declared in this scope
     dx=1;
     ^~
Main.cc:8:5: note: suggested alternative: ‘d’
     dx=1;
     ^~
     d
Main.cc:9:5: error: ‘dy’ was not declared in this scope
     dy=n;
     ^~
Main.cc:9:5: note: suggested alternative: ‘d’
     dy=n;
     ^~
     d