/in/foo.cc: In function 'int main()':
/in/foo.cc:10:26: warning: unused variable 'f' [-Wunused-variable]
    int q=1,k=1,l=0,sum=0,f=0,p=1,r=1,mm=1;
                          ^
/in/foo.cc:10:30: warning: unused variable 'p' [-Wunused-variable]
    int q=1,k=1,l=0,sum=0,f=0,p=1,r=1,mm=1;
                              ^
/in/foo.cc:10:38: warning: unused variable 'mm' [-Wunused-variable]
    int q=1,k=1,l=0,sum=0,f=0,p=1,r=1,mm=1;
                                      ^~