Compilare: user.cpp: In function ‘int main()’: user.cpp:12:12: warning: unused variable ‘k’ [-Wunused-variable] int n, k, nl, q, x, y, c, dst, d2, m; ^ user.cpp:12:15: warning: unused variable ‘nl’ [-Wunused-variable] int n, k, nl, q, x, y, c, dst, d2, m; ^ user.cpp:12:19: warning: unused variable ‘q’ [-Wunused-variable] int n, k, nl, q, x, y, c, dst, d2, m; ^ user.cpp:12:22: warning: unused variable ‘x’ [-Wunused-variable] int n, k, nl, q, x, y, c, dst, d2, m; ^ user.cpp:12:25: warning: unused variable ‘y’ [-Wunused-variable] int n, k, nl, q, x, y, c, dst, d2, m; ^ user.cpp:12:28: warning: unused variable ‘c’ [-Wunused-variable] int n, k, nl, q, x, y, c, dst, d2, m; ^ user.cpp:12:31: warning: unused variable ‘dst’ [-Wunused-variable] int n, k, nl, q, x, y, c, dst, d2, m; ^ user.cpp:12:36: warning: unused variable ‘d2’ [-Wunused-variable] int n, k, nl, q, x, y, c, dst, d2, m; ^ user.cpp:13:15: warning: unused variable ‘INF’ [-Wunused-variable] const int INF = 50000001; ^ user.cpp:14:15: warning: unused variable ‘sum’ [-Wunused-variable] long long sum; ^