Compilare: main.c: In function 'init': main.c:117:15: warning: assignment from incompatible pointer type [-Wincompatible-pointer-types] (*h)->top = ⊤ ^ main.c: In function 'main': main.c:133:5: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &N); ^~~~~~~~~~~~~~~~~~~~ main.c:137:9: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf( in, "%d", &instr ); ^~~~~~~~~~~~~~~~~~~~~~~~~~ main.c:140:17: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf( in, "%d", &val ); ^~~~~~~~~~~~~~~~~~~~~~~~ main.c:144:17: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf( in, "%d", &val ); ^~~~~~~~~~~~~~~~~~~~~~~~