Compilare: user.cpp: In function ‘int main()’: user.cpp:20:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<s.length();++i) ^ user.cpp:34:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<v.size();++i) cale[j]+="\\"+v[i]; ^ user.cpp:41:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<cale.size();++i) cout<<cale[i]<<'\n'; ^