/in/foo.cc: In constructor 'Rect::Rect(int, int, int, int)':
/in/foo.cc:14:13: warning: 'Rect::r' will be initialized after [-Wreorder]
     int l,t,r,b;
             ^
/in/foo.cc:14:11: warning:   'int Rect::t' [-Wreorder]
     int l,t,r,b;
           ^
/in/foo.cc:13:5: warning:   when initialized here [-Wreorder]
     Rect(int ll=-1,int rr=-1,int tt=-1,int bb=-1):l(ll),r(rr),t(tt),b(bb) {}  
     ^~~~
/in/foo.cc: In function 'void read(int&)':
/in/foo.cc:91:2: warning: this 'while' clause does not guard... [-Wmisleading-indentation]
  while((ch=getchar())<'0'||ch>'9');res=ch-48;
  ^~~~~
/in/foo.cc:91:36: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'while'
  while((ch=getchar())<'0'||ch>'9');res=ch-48;
                                    ^~~