Compilare: main.c: In function 'main': main.c:144:32: warning: passing argument 4 of 'qsort' from incompatible pointer type [-Wincompatible-pointer-types] 144 | qsort(ord, n, sizeof *ord, _cmpord); | ^~~~~~~ | | | int (*)(const int *, const int *) In file included from main.c:2: /usr/include/stdlib.h:852:34: note: expected '__compar_fn_t' {aka 'int (*)(const void *, const void *)'} but argument is of type 'int (*)(const int *, const int *)' 852 | __compar_fn_t __compar) __nonnull ((1, 4)); | ~~~~~~~~~~~~~~^~~~~~~~ main.c:151:30: warning: passing argument 4 of 'qsort' from incompatible pointer type [-Wincompatible-pointer-types] 151 | qsort(cy, n, sizeof *cy, _cmpcomp); | ^~~~~~~~ | | | int (*)(const int *, const int *) /usr/include/stdlib.h:852:34: note: expected '__compar_fn_t' {aka 'int (*)(const void *, const void *)'} but argument is of type 'int (*)(const int *, const int *)' 852 | __compar_fn_t __compar) __nonnull ((1, 4)); | ~~~~~~~~~~~~~~^~~~~~~~ main.c:127:32: warning: unused variable 'f3' [-Wunused-variable] 127 | long long ans, tm, f1, f2, f3; | ^~ main.c:127:28: warning: unused variable 'f2' [-Wunused-variable] 127 | long long ans, tm, f1, f2, f3; | ^~ main.c:127:24: warning: unused variable 'f1' [-Wunused-variable] 127 | long long ans, tm, f1, f2, f3; | ^~ main.c:127:20: warning: unused variable 'tm' [-Wunused-variable] 127 | long long ans, tm, f1, f2, f3; | ^~ main.c:126:31: warning: unused variable 'ly' [-Wunused-variable] 126 | int u, i, j, x, y, w, lx, ly; | ^~ main.c:126:27: warning: unused variable 'lx' [-Wunused-variable] 126 | int u, i, j, x, y, w, lx, ly; | ^~ main.c:126:15: warning: unused variable 'j' [-Wunused-variable] 126 | int u, i, j, x, y, w, lx, ly; | ^