Compilare: main.cpp: In function 'int main()': main.cpp:21:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < v.size(); ++i) { ~~^~~~~~~~~~ main.cpp:36:59: warning: 'dr' may be used uninitialized in this function [-Wmaybe-uninitialized] fout << mini << ' ' << st + 1 << ' ' << dr + 1 << '\n'; ^~~~ main.cpp:36:42: warning: 'st' may be used uninitialized in this function [-Wmaybe-uninitialized] fout << mini << ' ' << st + 1 << ' ' << dr + 1 << '\n'; ^~~