View Compilation Error

543525_0_0_3651.c: In function `main':
543525_0_0_3651.c:12: error: syntax error before ';' token
543525_0_0_3651.c:13: error: `p' undeclared (first use in this function)
543525_0_0_3651.c:13: error: (Each undeclared identifier is reported only once
543525_0_0_3651.c:13: error: for each function it appears in.)