Compilare: user.cpp: In function ‘int main()’: user.cpp:27:16: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if (v[j] > v[i]) ^ user.cpp:36:25: warning: ‘before’ may be used uninitialized in this function [-Wmaybe-uninitialized] if (before == v[j]) ^ user.cpp:37:47: warning: ‘last’ may be used uninitialized in this function [-Wmaybe-uninitialized] ways[i] = ways[i] - last + ways[j]; ^