Compilare: main.cpp: In function 'void solve(std::__cxx11::string)': main.cpp:11:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<s.size();i++) ~^~~~~~~~~ main.cpp:25:13: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(auto d:path) g<<d; g<<file<<'\n'; ^~~ main.cpp:25:36: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' for(auto d:path) g<<d; g<<file<<'\n'; ^