Compilare: main.cpp: In function 'int main()': main.cpp:65:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < anss.size(); i++) ~~^~~~~~~~~~~~~ main.cpp:47:20: warning: 'ans' may be used uninitialized in this function [-Wmaybe-uninitialized] fout << ans << '\n'; ^~~~