Compilare: user.c: In function ‘main’: user.c:39:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] ck+=dir[pr[r]]; ^ user.c:48:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] ck+=dir[ald[r]]; ^ user.c:13:29: warning: variable ‘max’ set but not used [-Wunused-but-set-variable] int n,k,t,q,i,s=0,x=0,r,max,min,c,ck,cck,z; ^ user.c:17:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d%d%d",&n,&k,&t); ^ user.c:20:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d",&q); ^ user.c:24:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d",&val[i]); ^ user.c:80:26: warning: ‘z’ may be used uninitialized in this function [-Wmaybe-uninitialized] mc[z]=1; ^