Eroare de compilare: user.c: In function 'Combina': user.c:19: error: 'oaie' 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:19: error: expected ';' before 'val' user.c:22: error: 'val' undeclared (first use in this function) user.c: In function 'Heapsort': user.c:34: error: 'oaie' undeclared (first use in this function) user.c:34: error: expected ';' before 'aux' user.c:37: error: 'aux' undeclared (first use in this function) user.c: In function 'insert_heap': user.c:43: error: 'sheap' undeclared (first use in this function) user.c:43: error: expected ';' before 'val' user.c:47: error: 'val' undeclared (first use in this function) user.c:47: warning: left-hand operand of comma expression has no effect user.c:47: warning: value computed is not used user.c: At top level: user.c:53: error: expected ';', ',' or ')' before '&' token user.c: In function 'main': user.c:70: warning: format '%ld' expects type 'long int *', but argument 3 has type 'int *' user.c:70: warning: format '%ld' expects type 'long int *', but argument 4 has type 'int *' user.c:70: warning: format '%ld' expects type 'long int *', but argument 5 has type 'int *' user.c:85: warning: implicit declaration of function 'pop_heap' user.c:94:2: warning: no newline at end of file