/in/foo.c: In function 'main':
/in/foo.c:11:3: warning: this 'else' clause does not guard... [-Wmisleading-indentation]
   else
   ^~~~
/in/foo.c:15:4: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'else'
    if(i<a)
    ^~
/in/foo.c:15:6: warning: 'i' may be used uninitialized in this function [-Wmaybe-uninitialized]
    if(i<a)
      ^