Compilare: main.cpp: In function 'int main()': main.cpp:105:50: warning: 'j' may be used uninitialized in this function [-Wmaybe-uninitialized] 105 | fout << l << '\n' << i + 1 << ' ' << j + 1; | ^ main.cpp:105:34: warning: 'i' may be used uninitialized in this function [-Wmaybe-uninitialized] 105 | fout << l << '\n' << i + 1 << ' ' << j + 1; | ^