Compilare: user.cpp: In function ‘int main()’: user.cpp:29:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] nextt[n][s[n]]=n; ^ user.cpp:33:26: warning: array subscript has type ‘char’ [-Wchar-subscripts] nextt[i][s[i]]=i; ^ user.cpp:41:51: warning: array subscript has type ‘char’ [-Wchar-subscripts] sp=sp+subsir[i]-subsir[nextt[i+1][s[i]]]; ^ user.cpp:47:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (ap[s[i]] == 0) { ^ user.cpp:49:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] ap[s[i]]=1; ^ user.cpp:25:13: warning: unused variable ‘cop’ [-Wunused-variable] int cop=k; ^ user.cpp:26:28: warning: unused variable ‘sum’ [-Wunused-variable] unsigned long long sum=0; ^ user.cpp:58:34: warning: unused variable ‘cp’ [-Wunused-variable] int pz=nextt[1][car[j]], cp=0, ta=0; ^