Compilare: main.cpp: In function 'int main()': main.cpp:56:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<v.size()-1; i++){ ~^~~~~~~~~~~ main.cpp:82:23: warning: 'ans' may be used uninitialized in this function [-Wmaybe-uninitialized] fout << ans + 1 << '\n'; ^