#include <bits/stdc++.h> #define ll long long #define debug if(0) const int MAX_N = 1e5; const int base = 1<<18; const int inf = 1e9; int a[2][MAX_N+3]; std::pair<int, int> pos[2*MAX_N+3]; int n, k; struct Node { std::vector<std::pair<int, int> > v; int lazy; Node(){ v.clear(); lazy = 0; } }; Node t[2*base+5]; void calc_vals(int low, int high, int v) { int i, j; i = j = 0; int lsize = t[v*2].v.size(); int rsize = t[v*2+1].v.size(); t[v].v.clear(); while (t[v].v.size() < k+1 && (i < lsize || j < rsize)) { if (i < lsize && j < rsize && t[v*2].v[i].first == t[v*2+1].v[j].first) { t[v].v.push_back({t[v*2].v[i].first, t[v*2].v[i].second + t[v*2+1].v[j].second}); i++; j++; } else if (i >= lsize || (j < rsize && t[v*2+1].v[j].first < t[v*2].v[i].first)) t[v].v.push_back(t[v*2+1].v[j++]); else if (i < lsize) t[v].v.push_back(t[v*2].v[i++]); else break; } debug { std::cout << "vals on [" << low << ", " << high << "]: "; for (auto p : t[v].v) std::cout << "{" << p.first << ", " << p.second << "} "; std::cout << "\n"; } } void push_down(int low, int high, int v) { for (auto &p : t[v].v) p.first += t[v].lazy; debug { std::cout << "vals on [" << low << ", " << high << "]: "; for (auto p : t[v].v) std::cout << "{" << p.first << ", " << p.second << "} "; std::cout << "\n"; } if (low != high) { t[v*2].lazy += t[v].lazy; t[v*2+1].lazy += t[v].lazy; } t[v].lazy = 0; } void add(int low, int high, int L, int R, int v, int x) { if (low > high || L > R) return; if (t[v].lazy != 0) push_down(low, high, v); if (L > high || R < low) return; if (high <= R && low >= L) { t[v].lazy += x; push_down(low, high, v); return; } int mid = (low+high)/2; add(low, mid, L, R, v*2, x); add(mid+1, high, L, R, v*2+1, x); calc_vals(low, high, v); } void init(int low, int high, int v) { if (low > high) return; t[v].v.push_back({0, high-low+1}); if (low == high) return; int mid = (low+high)/2; init(low, mid, v*2); init(mid+1, high, v*2+1); } ll get_cnt(int x) { int res = 0; for (auto p : t[1].v) if (p.first == x) res = p.second; debug std::cout << "get_cnt(" << x << ") = " << res << "\n"; return res; } void calc_and_add(int i, int left, int X) { // calculate good range for i-th gap if left is fixed and add X on this range int x = inf; if (a[0][i] >= left) x = a[0][i]; if (a[1][i] >= left) x = std::min(x, a[1][i]); int y = 2*n+1; if (a[0][i] >= left && a[0][(i+n-1)%n] >= left) y = std::min(y, std::max(a[0][i], a[0][(i+n-1)%n])); if (a[1][i] >= left && a[1][(i+n-1)%n] >= left) { y = std::min(y, std::max(a[1][i], a[1][(i+n-1)%n])); } debug std::cout << "calc_and_add(" << i << ", " << left << ", " << X << "): [" << x << ", " << y-1 << "]\n"; if (left <= x && x < y) { add(1, 2*n, x, y-1, 1, X); } } int main() { std::ios_base::sync_with_stdio(0); std::cin.tie(NULL); std::cin >> n >> k; init(1, 2*n, 1); for (int i = 0; i < 2; i++) for (int j = 0; j < n; j++) { std::cin >> a[i][j]; pos[a[i][j]] = {i, j}; } std::vector<ll> res(11, 0); int l = 1; for (int i = 0; i < n; i++) { fflush(stdout); calc_and_add(i, 1, 1); } while (l <= 2*n) { res[1] += get_cnt(0) + get_cnt(1); for (int i = 2; i <= k; i++) res[i] += get_cnt(i); int pos_y = pos[l].second; calc_and_add(pos_y, l, -1); calc_and_add((pos_y+1)%n, l, -1); calc_and_add(pos_y, l+1, 1); calc_and_add((pos_y+1)%n, l+1, 1); l++; add(1, 2*n, l-1, l-1, 1, inf); } for (int i = 1; i <= k; i++) std::cout << res[i] << " "; std::cout << "\n"; }
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 | #include <bits/stdc++.h> #define ll long long #define debug if(0) const int MAX_N = 1e5; const int base = 1<<18; const int inf = 1e9; int a[2][MAX_N+3]; std::pair<int, int> pos[2*MAX_N+3]; int n, k; struct Node { std::vector<std::pair<int, int> > v; int lazy; Node(){ v.clear(); lazy = 0; } }; Node t[2*base+5]; void calc_vals(int low, int high, int v) { int i, j; i = j = 0; int lsize = t[v*2].v.size(); int rsize = t[v*2+1].v.size(); t[v].v.clear(); while (t[v].v.size() < k+1 && (i < lsize || j < rsize)) { if (i < lsize && j < rsize && t[v*2].v[i].first == t[v*2+1].v[j].first) { t[v].v.push_back({t[v*2].v[i].first, t[v*2].v[i].second + t[v*2+1].v[j].second}); i++; j++; } else if (i >= lsize || (j < rsize && t[v*2+1].v[j].first < t[v*2].v[i].first)) t[v].v.push_back(t[v*2+1].v[j++]); else if (i < lsize) t[v].v.push_back(t[v*2].v[i++]); else break; } debug { std::cout << "vals on [" << low << ", " << high << "]: "; for (auto p : t[v].v) std::cout << "{" << p.first << ", " << p.second << "} "; std::cout << "\n"; } } void push_down(int low, int high, int v) { for (auto &p : t[v].v) p.first += t[v].lazy; debug { std::cout << "vals on [" << low << ", " << high << "]: "; for (auto p : t[v].v) std::cout << "{" << p.first << ", " << p.second << "} "; std::cout << "\n"; } if (low != high) { t[v*2].lazy += t[v].lazy; t[v*2+1].lazy += t[v].lazy; } t[v].lazy = 0; } void add(int low, int high, int L, int R, int v, int x) { if (low > high || L > R) return; if (t[v].lazy != 0) push_down(low, high, v); if (L > high || R < low) return; if (high <= R && low >= L) { t[v].lazy += x; push_down(low, high, v); return; } int mid = (low+high)/2; add(low, mid, L, R, v*2, x); add(mid+1, high, L, R, v*2+1, x); calc_vals(low, high, v); } void init(int low, int high, int v) { if (low > high) return; t[v].v.push_back({0, high-low+1}); if (low == high) return; int mid = (low+high)/2; init(low, mid, v*2); init(mid+1, high, v*2+1); } ll get_cnt(int x) { int res = 0; for (auto p : t[1].v) if (p.first == x) res = p.second; debug std::cout << "get_cnt(" << x << ") = " << res << "\n"; return res; } void calc_and_add(int i, int left, int X) { // calculate good range for i-th gap if left is fixed and add X on this range int x = inf; if (a[0][i] >= left) x = a[0][i]; if (a[1][i] >= left) x = std::min(x, a[1][i]); int y = 2*n+1; if (a[0][i] >= left && a[0][(i+n-1)%n] >= left) y = std::min(y, std::max(a[0][i], a[0][(i+n-1)%n])); if (a[1][i] >= left && a[1][(i+n-1)%n] >= left) { y = std::min(y, std::max(a[1][i], a[1][(i+n-1)%n])); } debug std::cout << "calc_and_add(" << i << ", " << left << ", " << X << "): [" << x << ", " << y-1 << "]\n"; if (left <= x && x < y) { add(1, 2*n, x, y-1, 1, X); } } int main() { std::ios_base::sync_with_stdio(0); std::cin.tie(NULL); std::cin >> n >> k; init(1, 2*n, 1); for (int i = 0; i < 2; i++) for (int j = 0; j < n; j++) { std::cin >> a[i][j]; pos[a[i][j]] = {i, j}; } std::vector<ll> res(11, 0); int l = 1; for (int i = 0; i < n; i++) { fflush(stdout); calc_and_add(i, 1, 1); } while (l <= 2*n) { res[1] += get_cnt(0) + get_cnt(1); for (int i = 2; i <= k; i++) res[i] += get_cnt(i); int pos_y = pos[l].second; calc_and_add(pos_y, l, -1); calc_and_add((pos_y+1)%n, l, -1); calc_and_add(pos_y, l+1, 1); calc_and_add((pos_y+1)%n, l+1, 1); l++; add(1, 2*n, l-1, l-1, 1, inf); } for (int i = 1; i <= k; i++) std::cout << res[i] << " "; std::cout << "\n"; } |