Compilare: user.c: In function ‘main’: user.c:6:30: warning: variable ‘x3’ set but not used [-Wunused-but-set-variable] int n,i,s,max,nr,i2,x,x1,x3,max2,ok,k; ^ user.c:6:27: warning: variable ‘x1’ set but not used [-Wunused-but-set-variable] int n,i,s,max,nr,i2,x,x1,x3,max2,ok,k; ^ user.c:6:25: warning: variable ‘x’ set but not used [-Wunused-but-set-variable] int n,i,s,max,nr,i2,x,x1,x3,max2,ok,k; ^ 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:14:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d", &nr); ^