Compilare: user.c: In function ‘ciur’: user.c:16:19: warning: assignment makes pointer from integer without a cast [enabled by default] c[i*j]=1; ^ user.c:19:16: warning: comparison between pointer and integer [enabled by default] if(c[i]!=1) ^ user.c:22:23: warning: comparison between pointer and integer [enabled by default] while(c[j]==1&&j<=b)j++; ^ user.c: In function ‘main’: user.c:39:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fila,"%d",&a); ^ user.c:40:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fila,"%d",&b); ^