Compilare: main.c: In function 'compare': main.c:6:14: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] return ( (int)b - (int)a ); ^ main.c:6:23: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] return ( (int)b - (int)a ); ^ main.c: In function 'main': main.c:19:5: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d",&n,&m); ^~~~~~~~~~~~~~~~~~~~~~~~ main.c:21:9: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&c[i]); ^~~~~~~~~~~~~~~~~~~~~~ main.c:23:9: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&g[j]); ^~~~~~~~~~~~~~~~~~~~~~