Compilare: main.cpp: In function 'int main()': main.cpp:24:35: warning: 'fina' may be used uninitialized in this function [-Wmaybe-uninitialized] fout << beg << " " << fina << " " << best_sum; ^~~ main.cpp:24:20: warning: 'beg' may be used uninitialized in this function [-Wmaybe-uninitialized] fout << beg << " " << fina << " " << best_sum; ^~~ main.cpp:18:33: warning: 'index' may be used uninitialized in this function [-Wmaybe-uninitialized] if (sum > best_sum && i - index >= k) { ~~^~~~~~~