View Compilation Error

83946_0_15262.c: In function `solve_subtaskx':
83946_0_15262.c:17: error: syntax error before '/' token
83946_0_15262.c:26: error: syntax error before '/' token
83946_0_15262.c: At top level:
83946_0_15262.c:34: error: syntax error before "return"
83946_0_15262.c: In function `solve_subtasky':
83946_0_15262.c:41: error: syntax error before '/' token
83946_0_15262.c:49: error: syntax error before '/' token
83946_0_15262.c: In function `can_see':
83946_0_15262.c:69: error: syntax error before '/' token
83946_0_15262.c: In function `find_path':
83946_0_15262.c:92: error: syntax error before '/' token
83946_0_15262.c:96: error: syntax error before '/' token
83946_0_15262.c:99: error: syntax error before '/' token
83946_0_15262.c:109: error: syntax error before '/' token
83946_0_15262.c: In function `solve_one':
83946_0_15262.c:135: error: syntax error before '/' token