#include <bits/stdc++.h> using namespace std; #define ll long long void rotate(std::vector<int> t, int x); void energy(int n, std::vector<int> v) { for (int i=0;i<n;i+=2) { if (i+1==n) continue; vector<int> a; a.push_back(i+1); rotate(a,(v[i]+25000-v[i+1]+50000)%50000); } }