/in/foo.cc:7:15: warning: integer constant is too large for its type
  for(int i;i<=999999999999999999999999999999;i++)
               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/in/foo.cc: In function 'int main()':
/in/foo.cc:10:3: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   if(f<=a)
   ^~
/in/foo.cc:12:4: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
    d=d*i;
    ^
/in/foo.cc:13:3: error: 'else' without a previous 'if'
   else
   ^~~~
/in/foo.cc:16:8: error: 'i' was not declared in this scope
  cout<<i;
        ^