View Compilation Error

0_0_3781398_8638.c:4: error: syntax error before '&' token
0_0_3781398_8638.c: In function `clique':
0_0_3781398_8638.c:6: error: `n' undeclared (first use in this function)
0_0_3781398_8638.c:6: error: (Each undeclared identifier is reported only once
0_0_3781398_8638.c:6: error: for each function it appears in.)
0_0_3781398_8638.c:7: error: `size' undeclared (first use in this function)
0_0_3781398_8638.c:7: error: `c' undeclared (first use in this function)
0_0_3781398_8638.c:7: error: `u' undeclared (first use in this function)
0_0_3781398_8638.c:7: error: `max' undeclared (first use in this function)
0_0_3781398_8638.c:10: error: `mat' undeclared (first use in this function)
0_0_3781398_8638.c:12: error: `rr' undeclared (first use in this function)
0_0_3781398_8638.c:13: error: `bb' undeclared (first use in this function)
0_0_3781398_8638.c:13: error: `res' undeclared (first use in this function)