Compilare: user.c: In function ‘main’: user.c:7:53: warning: unused variable ‘cy2’ [-Wunused-variable] int n,k,tip,x,i,j,c,x1,y1,x2,y2,max,cx1,cy1,cx2,cy2; ^ user.c:7:49: warning: unused variable ‘cx2’ [-Wunused-variable] int n,k,tip,x,i,j,c,x1,y1,x2,y2,max,cx1,cy1,cx2,cy2; ^ user.c:7:45: warning: unused variable ‘cy1’ [-Wunused-variable] int n,k,tip,x,i,j,c,x1,y1,x2,y2,max,cx1,cy1,cx2,cy2; ^ user.c:7:41: warning: unused variable ‘cx1’ [-Wunused-variable] int n,k,tip,x,i,j,c,x1,y1,x2,y2,max,cx1,cy1,cx2,cy2; ^ user.c:9:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d",&n,&k); ^ user.c:16:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d",&tip,&x); ^