View Compilation Error

0_0_3036510_20415.c: In function `cmp':
0_0_3036510_20415.c:14: error: `s' undeclared (first use in this function)
0_0_3036510_20415.c:14: error: (Each undeclared identifier is reported only once
0_0_3036510_20415.c:14: error: for each function it appears in.)
0_0_3036510_20415.c:14: error: `p1' undeclared (first use in this function)
0_0_3036510_20415.c:14: error: `p2' undeclared (first use in this function)
0_0_3036510_20415.c:16: error: syntax error before ')' token
0_0_3036510_20415.c:17: error: syntax error before ')' token
0_0_3036510_20415.c:24: error: syntax error before '/' token