Compilare: main.cpp: In function 'int main()': main.cpp:14:31: warning: unused variable 'y' [-Wunused-variable] int i, j, mx, mx2, ml, x, y, k; ^ main.cpp:50:19: warning: 'ml' may be used uninitialized in this function [-Wmaybe-uninitialized] fout << ml << '\n'; ^~~~ main.cpp:64:24: warning: 'x' may be used uninitialized in this function [-Wmaybe-uninitialized] b[i][x] *= 1000; ^~~~