/in/foo.cc: In function 'int main()':
/in/foo.cc:29:3: warning: 'n' may be used uninitialized in this function [-Wmaybe-uninitialized]
   if(n==t){
   ^~
/in/foo.cc:29:3: warning: 't' may be used uninitialized in this function [-Wmaybe-uninitialized]