Compilare: user.cpp: In function ‘ll solve(double, double, int, double, double)’: user.cpp:33:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp:29:5: warning: ‘cadran’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(cadran == 0) return solve(dx/2, dy/2, k-1, x, y-dy); ^