/in/foo.c: In function 'main':
/in/foo.c:26:5: warning: this 'else' clause does not guard... [-Wmisleading-indentation]
     else
     ^~~~
/in/foo.c:28:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'else'
         printf("%d",unknown);
         ^~~~~~