Accepted
/in/foo.cc: In function 'int main()': /in/foo.cc:33:15: warning: unused variable 'c' [-Wunused-variable] long long c,sum=1; ^
/in/foo.cc: In function 'int main()': /in/foo.cc:33:15: warning: unused variable 'c' [-Wunused-variable] long long c,sum=1; ^