0_0_39663414_6477.c:1:1: error: unknown type name 'def' 1 | def climb_stairs(n): | ^~~ 0_0_39663414_6477.c: In function 'climb_stairs': 0_0_39663414_6477.c:1:20: error: expected declaration specifiers before ':' token 1 | def climb_stairs(n): | ^