Main.c: In function 'main':
Main.c:11:10: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   11 |     else if (t < 27);
      |          ^~
Main.c:12:9: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
   12 |         printf("overweight");
      |         ^~~~~~
Main.c:13:5: error: 'else' without a previous 'if'
   13 |     else
      |     ^~~~