View Compilation Error

0_0_5228814_23842.c: In function `Dfs':
0_0_5228814_23842.c:10: error: syntax error before '/' token
0_0_5228814_23842.c:16: error: `p1' undeclared (first use in this function)
0_0_5228814_23842.c:16: error: (Each undeclared identifier is reported only once
0_0_5228814_23842.c:16: error: for each function it appears in.)