Compilare: main.c: In function 'main': main.c:11:12: warning: passing argument 1 of 'fscanf' from incompatible pointer type [-Wincompatible-pointer-types] 11 | fscanf("%d", &n); | ^~~~ | | | char * In file included from main.c:1: /usr/include/stdio.h:415:37: note: expected 'FILE * restrict' but argument is of type 'char *' 415 | extern int fscanf (FILE *__restrict __stream, | ~~~~~~~~~~~~~~~~~^~~~~~~~ main.c:11:18: warning: passing argument 2 of 'fscanf' from incompatible pointer type [-Wincompatible-pointer-types] 11 | fscanf("%d", &n); | ^~ | | | int * /usr/include/stdio.h:416:43: note: expected 'const char * restrict' but argument is of type 'int *' 416 | const char *__restrict __format, ...) __wur; | ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~ main.c:14:12: warning: passing argument 1 of 'fscanf' from incompatible pointer type [-Wincompatible-pointer-types] 14 | fscanf("%lf%lf", &x1, &y1); | ^~~~~~~~ | | | char * /usr/include/stdio.h:415:37: note: expected 'FILE * restrict' but argument is of type 'char *' 415 | extern int fscanf (FILE *__restrict __stream, | ~~~~~~~~~~~~~~~~~^~~~~~~~ main.c:14:22: warning: passing argument 2 of 'fscanf' from incompatible pointer type [-Wincompatible-pointer-types] 14 | fscanf("%lf%lf", &x1, &y1); | ^~~ | | | double * /usr/include/stdio.h:416:43: note: expected 'const char * restrict' but argument is of type 'double *' 416 | const char *__restrict __format, ...) __wur; | ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~ main.c:19:16: warning: passing argument 1 of 'fscanf' from incompatible pointer type [-Wincompatible-pointer-types] 19 | fscanf("%lf%lf", &x, &y); | ^~~~~~~~ | | | char * /usr/include/stdio.h:415:37: note: expected 'FILE * restrict' but argument is of type 'char *' 415 | extern int fscanf (FILE *__restrict __stream, | ~~~~~~~~~~~~~~~~~^~~~~~~~ main.c:19:26: warning: passing argument 2 of 'fscanf' from incompatible pointer type [-Wincompatible-pointer-types] 19 | fscanf("%lf%lf", &x, &y); | ^~ | | | double * /usr/include/stdio.h:416:43: note: expected 'const char * restrict' but argument is of type 'double *' 416 | const char *__restrict __format, ...) __wur; | ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~