Accepted
/in/foo.cc: In function 'int main()': /in/foo.cc:11:16: warning: unused variable 'res' [-Wunused-variable] int t, m, res=-1; ^~~
/in/foo.cc: In function 'int main()': /in/foo.cc:11:16: warning: unused variable 'res' [-Wunused-variable] int t, m, res=-1; ^~~