#include <bits/stdc++.h> using namespace std; struct rect { int lx, rx, ly, ry; bool isValid() const { return lx != -1; } }; const rect RECT_INVALID = {-1, -1, -1, -1}; struct event { int l, r, val; }; const int MAXL = 800'008; typedef pair<int, vector <int>> val_t; val_t vals[MAXL]; int mods[MAXL]; struct LazyTree { int p = 1, k; void recompute(int i) { int iL = 2 * i + 1, iR = 2 * i + 2; vals[i].first = min(vals[iL].first, vals[iR].first); int diffL = vals[i].first - vals[iL].first; int diffR = vals[i].first - vals[iR].first; for (int x = 0; x < k; x++) { int v = 0; int xL = x + diffL; if (xL >= 0) { v += vals[iL].second[xL]; } int xR = x + diffR; if (xR >= 0) { v += vals[iR].second[xR]; } vals[i].second[x] = v; } } val_t getValInit() { vector <int> cntsInit(k, 0); cntsInit[0] = 1; return {0, cntsInit}; } LazyTree(int n, int k): k(k) { while (p < n) p *= 2; int m = 2 * p - 1; for (int i = 0; i < m; i++) { vals[i] = getValInit(); mods[i] = 0; } for (int i = p - 2; i >= 0; i--) { recompute(i); } } void modify(int x, int y, int m) { _modify(0, 0, p - 1, x, y, m); } void _push(int u) { vals[u].first += mods[u]; if (u < p - 1) { mods[2 * u + 1] += mods[u]; mods[2 * u + 2] += mods[u]; } mods[u] = 0; } void _modify(int u, int a, int b, int x, int y, int m) { _push(u); if (x <= a && b <= y) { mods[u] += m; _push(u); return ; } int mid = (a + b) / 2; if (x <= mid) _modify(2 * u + 1, a, mid, x, y, m); else _push(2 * u + 1); if (mid < y) _modify(2 * u + 2, mid + 1, b, x, y, m); else _push(2 * u + 2); recompute(u); } }; rect makeRect(int m, const vector <int> &include, const vector <int> &exclude) { int rx = *min_element(include.begin(), include.end()); int ly = *max_element(include.begin(), include.end()); int lx = 0, ry = m - 1; for (int e : exclude) { if (e >= rx && e <= ly) { return RECT_INVALID; } else if (e < rx) { lx = max(lx, e + 1); } else { ry = min(ry, e - 1); } } return {lx, rx, ly, ry}; } vector <long long> solve(int n, int k, vector <vector<int>> &tab) { int m = 2 * n; vector <rect> rects; for (int i = 0; i < n; i++) { int j = i < n - 1 ? i + 1 : 0; int ap = tab[0][i], bp = tab[1][i], a = tab[0][j], b = tab[1][j]; auto toAdd = { makeRect(m, {a}, {b, ap}), makeRect(m, {b}, {a, bp}), makeRect(m, {a, b}, {ap, bp}) }; for (auto &r : toAdd) if (r.isValid()) { rects.push_back(r); } } vector <vector<event>> events(m); for (auto &[lx, rx, ly, ry] : rects) { events[lx].push_back({ly, ry, 1}); if (rx < m - 1) { events[rx + 1].push_back({ly, ry, -1}); } } LazyTree tree(m, k + 1); vector <long long> ans(k, 0); for (int x = 0; x < m; x++) { for (auto &[l, r, val] : events[x]) { tree.modify(l, r, val); } auto cnts = vals[0].second; ans[0] += cnts[0] - x - (tree.p - m); for (int v = 0; v < k; v++) { ans[v] += cnts[v + 1]; } } return ans; } int main() { ios_base::sync_with_stdio(false); int n, k; cin >> n >> k; vector <vector<int>> tab(2, vector <int> (n)); for (int i = 0; i < 2; i++) for (int j = 0; j < n; j++) { cin >> tab[i][j]; tab[i][j]--; } auto ans = solve(n, k, tab); for (long long x : ans) { cout << x << ' '; } return 0; }
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 | #include <bits/stdc++.h> using namespace std; struct rect { int lx, rx, ly, ry; bool isValid() const { return lx != -1; } }; const rect RECT_INVALID = {-1, -1, -1, -1}; struct event { int l, r, val; }; const int MAXL = 800'008; typedef pair<int, vector <int>> val_t; val_t vals[MAXL]; int mods[MAXL]; struct LazyTree { int p = 1, k; void recompute(int i) { int iL = 2 * i + 1, iR = 2 * i + 2; vals[i].first = min(vals[iL].first, vals[iR].first); int diffL = vals[i].first - vals[iL].first; int diffR = vals[i].first - vals[iR].first; for (int x = 0; x < k; x++) { int v = 0; int xL = x + diffL; if (xL >= 0) { v += vals[iL].second[xL]; } int xR = x + diffR; if (xR >= 0) { v += vals[iR].second[xR]; } vals[i].second[x] = v; } } val_t getValInit() { vector <int> cntsInit(k, 0); cntsInit[0] = 1; return {0, cntsInit}; } LazyTree(int n, int k): k(k) { while (p < n) p *= 2; int m = 2 * p - 1; for (int i = 0; i < m; i++) { vals[i] = getValInit(); mods[i] = 0; } for (int i = p - 2; i >= 0; i--) { recompute(i); } } void modify(int x, int y, int m) { _modify(0, 0, p - 1, x, y, m); } void _push(int u) { vals[u].first += mods[u]; if (u < p - 1) { mods[2 * u + 1] += mods[u]; mods[2 * u + 2] += mods[u]; } mods[u] = 0; } void _modify(int u, int a, int b, int x, int y, int m) { _push(u); if (x <= a && b <= y) { mods[u] += m; _push(u); return ; } int mid = (a + b) / 2; if (x <= mid) _modify(2 * u + 1, a, mid, x, y, m); else _push(2 * u + 1); if (mid < y) _modify(2 * u + 2, mid + 1, b, x, y, m); else _push(2 * u + 2); recompute(u); } }; rect makeRect(int m, const vector <int> &include, const vector <int> &exclude) { int rx = *min_element(include.begin(), include.end()); int ly = *max_element(include.begin(), include.end()); int lx = 0, ry = m - 1; for (int e : exclude) { if (e >= rx && e <= ly) { return RECT_INVALID; } else if (e < rx) { lx = max(lx, e + 1); } else { ry = min(ry, e - 1); } } return {lx, rx, ly, ry}; } vector <long long> solve(int n, int k, vector <vector<int>> &tab) { int m = 2 * n; vector <rect> rects; for (int i = 0; i < n; i++) { int j = i < n - 1 ? i + 1 : 0; int ap = tab[0][i], bp = tab[1][i], a = tab[0][j], b = tab[1][j]; auto toAdd = { makeRect(m, {a}, {b, ap}), makeRect(m, {b}, {a, bp}), makeRect(m, {a, b}, {ap, bp}) }; for (auto &r : toAdd) if (r.isValid()) { rects.push_back(r); } } vector <vector<event>> events(m); for (auto &[lx, rx, ly, ry] : rects) { events[lx].push_back({ly, ry, 1}); if (rx < m - 1) { events[rx + 1].push_back({ly, ry, -1}); } } LazyTree tree(m, k + 1); vector <long long> ans(k, 0); for (int x = 0; x < m; x++) { for (auto &[l, r, val] : events[x]) { tree.modify(l, r, val); } auto cnts = vals[0].second; ans[0] += cnts[0] - x - (tree.p - m); for (int v = 0; v < k; v++) { ans[v] += cnts[v + 1]; } } return ans; } int main() { ios_base::sync_with_stdio(false); int n, k; cin >> n >> k; vector <vector<int>> tab(2, vector <int> (n)); for (int i = 0; i < 2; i++) for (int j = 0; j < n; j++) { cin >> tab[i][j]; tab[i][j]--; } auto ans = solve(n, k, tab); for (long long x : ans) { cout << x << ' '; } return 0; } |