Compilare: user.cpp: In function ‘int main()’: user.cpp:30:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] nextt[n][s[n]]=n; ^ user.cpp:34:26: warning: array subscript has type ‘char’ [-Wchar-subscripts] nextt[i][s[i]]=i; ^ user.cpp:45:24: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (ap[s[i]] == 0) { ^ user.cpp:47:24: warning: array subscript has type ‘char’ [-Wchar-subscripts] ap[s[i]]=1; ^ user.cpp:50:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(sum<cop) { ^ user.cpp:55:19: warning: variable ‘cp’ set but not used [-Wunused-but-set-variable] int pz=1, cp=0, ta=0; ^