运行 ID: 6259

Main.cc: In function ‘int main()’:
Main.cc:6:14: warning: right operand of comma operator has no effect [-Wunused-value]
     cin>>a,b,c;
              ^
Main.cc:6:15: warning: right operand of comma operator has no effect [-Wunused-value]
     cin>>a,b,c;
               ^
Main.cc:7:32: error: lvalue required as left operand of assignment
     if ((a