Compilare: user.cpp: In function ‘int main()’: user.cpp:11:56: warning: unused variable ‘k’ [-Wunused-variable] long long n, a[100005], b[100005], c[100005], max, k, v1, v2, x1, x2; ^ user.cpp:11:67: warning: unused variable ‘x1’ [-Wunused-variable] long long n, a[100005], b[100005], c[100005], max, k, v1, v2, x1, x2; ^ user.cpp:11:71: warning: unused variable ‘x2’ [-Wunused-variable] long long n, a[100005], b[100005], c[100005], max, k, v1, v2, x1, x2; ^ user.cpp:32:15: warning: ‘v2’ may be used uninitialized in this function [-Wmaybe-uninitialized] while(b[v2] > 0) ^