Compilare: main.cpp: In function 'int main()': main.cpp:93:29: warning: 'sol2' may be used uninitialized in this function [-Wmaybe-uninitialized] int x = xs, y = ys, sol1, sol2; ^~~~ main.cpp:147:23: warning: 'sol1' may be used uninitialized in this function [-Wmaybe-uninitialized] fout << SOL + (sol1 + 1) / 2 - 1; ~~~~~~^~~~