Accepted
/in/foo.cc: In function 'int main()': /in/foo.cc:21:14: warning: variable 'jie1' set but not used [-Wunused-but-set-variable] double xie1,jie1; ^~~~
/in/foo.cc: In function 'int main()': /in/foo.cc:21:14: warning: variable 'jie1' set but not used [-Wunused-but-set-variable] double xie1,jie1; ^~~~