Compilare: main.cpp: In function 'int main()': main.cpp:44:33: warning: operation on 'v[i]' may be undefined [-Wsequence-point] 44 | orient[v[i]] = v[i] = ++nr; | ~~~~~^~~~~~ main.cpp:37:15: warning: unused variable 'p' [-Wunused-variable] 37 | int l, u, p = 0, a, i, st, dr, cnt = 0, nr = 0; | ^ main.cpp:37:22: warning: unused variable 'a' [-Wunused-variable] 37 | int l, u, p = 0, a, i, st, dr, cnt = 0, nr = 0; | ^ main.cpp:37:28: warning: unused variable 'st' [-Wunused-variable] 37 | int l, u, p = 0, a, i, st, dr, cnt = 0, nr = 0; | ^~ main.cpp:37:32: warning: unused variable 'dr' [-Wunused-variable] 37 | int l, u, p = 0, a, i, st, dr, cnt = 0, nr = 0; | ^~ main.cpp:37:36: warning: unused variable 'cnt' [-Wunused-variable] 37 | int l, u, p = 0, a, i, st, dr, cnt = 0, nr = 0; | ^~~