Compilare: user.cpp: In function ‘int trans(std::string)’: user.cpp:11:26: warning: array subscript has type ‘char’ [-Wchar-subscripts] m=m+p*h1[x[5-k-1]]; ^ user.cpp:9:11: warning: unused variable ‘i’ [-Wunused-variable] int k,i,m,p=1; ^ user.cpp: In function ‘std::string retrans(int)’: user.cpp:17:11: warning: unused variable ‘i’ [-Wunused-variable] int k,i,m,p=1; ^ user.cpp:17:13: warning: unused variable ‘m’ [-Wunused-variable] int k,i,m,p=1; ^ user.cpp:17:15: warning: unused variable ‘p’ [-Wunused-variable] int k,i,m,p=1; ^ user.cpp: In function ‘int main()’: user.cpp:29:16: warning: array subscript has type ‘char’ [-Wchar-subscripts] h1[g[k]]=k; ^