Eroare de compilare: user.c: In function ‘cmp’: user.c:12:8: error: ‘T’ undeclared (first use in this function) if(T[a][2] != T[b][2]){ ^ user.c:12:8: note: each undeclared identifier is reported only once for each function it appears in user.c:11:9: warning: variable ‘b’ set but not used [-Wunused-but-set-variable] int b = (*((int*)p2)); ^ user.c:10:9: warning: variable ‘a’ set but not used [-Wunused-but-set-variable] int a = (*((int*)p1)); ^ user.c: In function ‘main’: user.c:25:19: warning: unused variable ‘jegy’ [-Wunused-variable] int a,ai,b,bi,jegy; ^ user.c:25:16: warning: unused variable ‘bi’ [-Wunused-variable] int a,ai,b,bi,jegy; ^ user.c:25:14: warning: unused variable ‘b’ [-Wunused-variable] int a,ai,b,bi,jegy; ^ user.c:25:11: warning: unused variable ‘ai’ [-Wunused-variable] int a,ai,b,bi,jegy; ^ user.c:25:9: warning: unused variable ‘a’ [-Wunused-variable] int a,ai,b,bi,jegy; ^ user.c:23:17: warning: unused variable ‘j’ [-Wunused-variable] int n,m,k,i,j; ^ user.c: In function ‘cmp’: user.c:17:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.c: In function ‘main’: user.c:21:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("avioane2.in","r",stdin); ^ user.c:22:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("avioane2.out","w",stdout); ^ user.c:24:10: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d",&n,&m,&k); ^