#include // デバッグ用マクロ:https://naskya.net/post/0002/ #ifdef LOCAL #include #define debug(...) debug_print::multi_print(#__VA_ARGS__, __VA_ARGS__) #else #define debug(...) (static_cast(0)) #endif using namespace std; using ll = long long; using vi = vector; using vl = vector; using vs = vector; using vc = vector; using vb = vector; using vpii = vector>; using vpll = vector>; using vvi = vector>; using vvl = vector>; using vvc = vector>; using vvb = vector>; using vvvi = vector>>; using pii = pair; // #include // using namespace atcoder; #define rep(i, n) for (int i = 0; i < (int)(n); i++) #define all(x) (x).begin(), (x).end() // #define MAX 10000 #define INFTY (1 << 30) // 浮動小数点の誤差を考慮した等式 #define EPS (1e-10) #define equal(a, b) (fabs((a) - (b)) < EPS) template inline bool chmax(T &a, T b) { return ((a < b) ? (a = b, true) : (false)); } template inline bool chmin(T &a, T b) { return ((a > b) ? (a = b, true) : (false)); } struct Solver { int N, M; vi a, b; // α int A = 5; vpii stupidInit() { vpii ret; rep(i, N) ret.emplace_back(1, i + 1); ret.emplace_back(1, 1); return ret; } // シンプルなスコア計算 ll calcScore(vpii &tr) { ll ret = 0; int len = (int)tr.size(); auto dist = [](int x1, int y1, int x2, int y2) { return (ll)((x1 - x2) * (x1 - x2) + (y1 - y2) * (y1 - y2)); }; rep(i, len - 1) { if (tr[i].first == 1 && tr[i + 1].first == 1) { int x1 = a[tr[i].second - 1]; int y1 = b[tr[i].second - 1]; int x2 = a[tr[i + 1].second - 1]; int y2 = b[tr[i + 1].second - 1]; ret += A * A * dist(x1, y1, x2, y2); } else if (tr[i].first == 2 && tr[i + 1].first == 2) { // TODO } else { // TODO } } return ret; } void solve() { /* input */ cin >> N >> M; a.resize(N); b.resize(N); rep(i, N) cin >> a[i] >> b[i]; /* solve */ vpii cd(M); vpii tr = stupidInit(); debug(tr); debug(calcScore(tr)); /* output */ int V = (int)tr.size(); assert(tr[0].second == 1); assert(tr[V - 1].second == 1); rep(i, M) cout << cd[i].first << " " << cd[i].second << "\n"; cout << V << endl; rep(i, V) cout << tr[i].first << " " << tr[i].second << "\n"; } }; int main() { int ts = 1; rep(ti, ts) { Solver solver; solver.solve(); } return 0; }