Eroare de compilare: user.c: In function ‘prod’: user.c:11:2: warning: return from incompatible pointer type [enabled by default] return res; ^ user.c:11:2: warning: function returns address of local variable [-Wreturn-local-addr] user.c: In function ‘put’: user.c:17:3: warning: return from incompatible pointer type [enabled by default] return res; ^ user.c:17:3: warning: function returns address of local variable [-Wreturn-local-addr] user.c:19:5: error: expected identifier or ‘(’ before ‘[’ token int[2][2] res = (*prod(put(n, p/2), put(n, p/2)))[2]; ^ user.c:21:3: error: ‘res’ undeclared (first use in this function) res = (*prod(res, n))[2]; ^ user.c:21:3: note: each undeclared identifier is reported only once for each function it appears in user.c: In function ‘main’: user.c:38:3: error: invalid initializer int mult[2][2] = (*put(tab, k - 1))[2]; ^ user.c: In function ‘put’: user.c:24:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.c: In function ‘main’: user.c:29:8: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d\n", &k); ^