运行 ID: 358485

Main.cc: In function ‘int main()’:
Main.cc:8:14: error: ‘r’ was not declared in this scope
  if(r1==8.8&&r=7.7){
              ^
Main.cc:8:14: note: suggested alternative: ‘r2’
  if(r1==8.8&&r=7.7){
              ^
              r2