/in/foo.c: In function 'main':
/in/foo.c:8:2: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
  if((year%4==0&&year%100!=0)||(year%400==0))
  ^~
/in/foo.c:10:3: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
   switch(month)
   ^~~~~~
/in/foo.c:25:5: warning: 'day' may be used uninitialized in this function [-Wmaybe-uninitialized]
     printf("%d\n",day);
     ^~~~~~~~~~~~~~~~~~