Compilare: user.cpp: In function ‘int main()’: user.cpp:11:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<s.size();i++) ^ user.cpp:22:45: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (k!=10 and k<32 and k>127) {z++;p[z]=j/8;} ^ user.cpp:23:38: warning: array subscript has type ‘char’ [-Wchar-subscripts] else if (y!=s[j-7]-48) {z++;p[z]=j/8;} ^ user.cpp:32:33: warning: array subscript has type ‘char’ [-Wchar-subscripts] for (i=1;i<=z;i++) fo<<p[i]<<' '; ^ user.cpp:37:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<s.size();i++) ^