Compilare: user.cpp: In function ‘void solve()’: user.cpp:86:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j = 0; j < factors.size(); j++) ^ user.cpp:99:5: warning: ‘ans2’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(ans1 > ans2) swap(ans1, ans2); ^ user.cpp:99:5: warning: ‘ans1’ may be used uninitialized in this function [-Wmaybe-uninitialized]