View Compilation Error

484829_0_0_6077.c: In function `main':
484829_0_0_6077.c:13: error: syntax error before '/' token
484829_0_0_6077.c:21: error: `day' undeclared (first use in this function)
484829_0_0_6077.c:21: error: (Each undeclared identifier is reported only once
484829_0_0_6077.c:21: error: for each function it appears in.)