Compilare: user.cpp: In function ‘void solve()’: user.cpp:38:18: warning: unused variable ‘ia’ [-Wunused-variable] int i, j, k, ia, ib, ic, concave = 0, convexe, total, ccw, cost, ax; ^ user.cpp:38:22: warning: unused variable ‘ib’ [-Wunused-variable] int i, j, k, ia, ib, ic, concave = 0, convexe, total, ccw, cost, ax; ^ user.cpp:38:26: warning: unused variable ‘ic’ [-Wunused-variable] int i, j, k, ia, ib, ic, concave = 0, convexe, total, ccw, cost, ax; ^ user.cpp:38:70: warning: unused variable ‘ax’ [-Wunused-variable] int i, j, k, ia, ib, ic, concave = 0, convexe, total, ccw, cost, ax; ^ user.cpp:39:17: warning: unused variable ‘C’ [-Wunused-variable] Point A, B, C, aux; ^ user.cpp:39:20: warning: unused variable ‘aux’ [-Wunused-variable] Point A, B, C, aux; ^ user.cpp:171:17: warning: ‘ccw’ may be used uninitialized in this function [-Wmaybe-uninitialized] if (ccw > 0) ^