Eroare de compilare: user.c: In function 'main': user.c:10: error: conflicting types for 'a' user.c:9: error: previous declaration of 'a' was here user.c:19: error: 'n' undeclared (first use in this function) user.c:19: error: (Each undeclared identifier is reported only once user.c:19: error: for each function it appears in.) user.c:22: warning: assignment from incompatible pointer type user.c:23: error: 'p' undeclared (first use in this function) user.c:32: error: subscripted value is neither array nor pointer user.c:53: error: subscripted value is neither array nor pointer user.c:60: error: subscripted value is neither array nor pointer user.c:61: error: subscripted value is neither array nor pointer user.c:69: error: subscripted value is neither array nor pointer user.c:119: error: subscripted value is neither array nor pointer user.c:122: error: subscripted value is neither array nor pointer user.c:125: error: subscripted value is neither array nor pointer user.c:136: error: subscripted value is neither array nor pointer user.c:137: error: subscripted value is neither array nor pointer user.c:144: error: subscripted value is neither array nor pointer user.c:153: error: subscripted value is neither array nor pointer user.c:153: error: subscripted value is neither array nor pointer