Compilare: main.cpp: In function 'void Lee()': main.cpp:60:12: warning: unused variable 'ok' [-Wunused-variable] int k, ok, i, j, x, y, mn = inf + 1; ^~ main.cpp:105:48: warning: 'y' may be used uninitialized in this function [-Wmaybe-uninitialized] fout << b[x][y] << " " << x << " " << y << "\n"; ^~~~ main.cpp:105:36: warning: 'x' may be used uninitialized in this function [-Wmaybe-uninitialized] fout << b[x][y] << " " << x << " " << y << "\n"; ^~~