Compilare: main.cpp: In function 'int main()': main.cpp:17:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=n;i>1&&nrm!=k;i--) ~~~^~~ main.cpp:18:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=i-1;j>=1&&nrm!=k;j--) ~~~^~~ main.cpp:19:20: warning: array subscript has type 'char' [-Wchar-subscripts] if(nr[i]>nr[j]) ^ main.cpp:19:26: warning: array subscript has type 'char' [-Wchar-subscripts] if(nr[i]>nr[j]) ^ main.cpp:21:30: warning: array subscript has type 'char' [-Wchar-subscripts] swap(nr[i],nr[j]); ^ main.cpp:21:36: warning: array subscript has type 'char' [-Wchar-subscripts] swap(nr[i],nr[j]); ^ main.cpp:24:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(nrm<k) ~~~^~ main.cpp:27:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1;i<=n;i++) ~^~~ main.cpp:28:20: warning: array subscript has type 'char' [-Wchar-subscripts] g<<nr[i]; ^