/in/foo.cc: In function 'int select(int*, int)':
/in/foo.cc:36:12: warning: 'k' may be used uninitialized in this function [-Wmaybe-uninitialized]
     return k;
            ^
/in/foo.cc: In function 'int main()':
/in/foo.cc:95:29: warning: 'k' may be used uninitialized in this function [-Wmaybe-uninitialized]
             if(talk[d].y<del&&talk[d].q>del)
                ~~~~~~~~~~~~~^~~~~~~~~~~~~~~
/in/foo.cc:78:29: warning: 'k' may be used uninitialized in this function [-Wmaybe-uninitialized]
             if(talk[d].x<del&&talk[d].p>del)
                ~~~~~~~~~~~~~^~~~~~~~~~~~~~~