#include <bits/stdc++.h> using namespace std; #define sim template < class c #define ris return * this #define dor > debug & operator << #define eni(x) sim > typename \ enable_if<sizeof dud<c>(0) x 1, debug&>::type operator<<(c i) { sim > struct rge { c b, e; }; sim > rge<c> range(c i, c j) { return rge<c>{i, j}; } sim > auto dud(c* x) -> decltype(cerr << *x, 0); sim > char dud(...); struct debug { #ifdef LOCAL ~debug() { cerr << endl; } eni(!=) cerr << boolalpha << i; ris; } eni(==) ris << range(begin(i), end(i)); } sim, class b dor(pair < b, c > d) { ris << "(" << d.first << ", " << d.second << ")"; } sim dor(rge<c> d) { *this << "["; for (auto it = d.b; it != d.e; ++it) *this << ", " + 2 * (it == d.b) << *it; ris << "]"; } #else sim dor(const c&) { ris; } #endif }; #define imie(...) " [" << #__VA_ARGS__ ": " << (__VA_ARGS__) << "] " // debug & operator << (debug & dd, P p) { dd << "(" << p.x << ", " << p.y << ")"; return dd; } bool FAKE = false; // bool FAKE = true; struct Node { int sum = 0; int left, right; }; const int BASE = 256 * 1024; vector<Node> tree[2*BASE]; void recClear(int id) { if ((int) tree[id].size() == 1) { return; } tree[id] = {Node{0,0,0}}; if (id < BASE) { recClear(2*id); recClear(2*id+1); } } void init() { static bool started = false; if (!started) { started = true; for (int i = 1; i < 2 * BASE; i++) { tree[i] = {Node{0,0,0}}; } } else { recClear(1); } } void add(int i) { int id = 1; for (int k = 17; k >= 0; k--) { const Node& last = tree[id].back(); if (i & (1 << k)) { // go right tree[id].push_back(Node{last.sum, last.left, last.right + 1}); id = 2 * id + 1; } else { // go left tree[id].push_back(Node{last.sum + 1, last.left + 1, last.right}); id = 2 * id; } } } int getSumBefore(int tajm, int i) { int id = 1; int sum = 0; for (int k = 17; k >= 1; k--) { // no leaf if (i & (1 << k)) { // go right sum += tree[id][tajm].sum; // it's actually sum from left child tajm = tree[id][tajm].right; id = 2 * id + 1; } else { // go left tajm = tree[id][tajm].left; id = 2 * id; } } return sum; } const int NAX = 2e5 + 5; const int A = 7600; // 30 moves on average const int B = 7000; long long c2[A][2*B+1]; int who[NAX]; int bad() { return B + 2 + rand() % (B / 20); } bool done(int x, int y) { return abs(x-y) <= B && who[x] && c2[who[x]][x-y+B]; } vector<long long> solve(int n, vector<int> p, bool firstIteration) { if (!firstIteration) { for (int i = 0; i < A; i++) { for (int j = 0; j <= 2 * B; j++) { c2[i][j] = 0; } } } // mapka.clear(); vector<int> inv(n+1); for (int i = 1; i <= n; i++) { inv[p[i]] = i; } vector<vector<int>> sufMin(2, vector<int>(n+2, n+1)); for (int i = n; i >= 1; --i) { sufMin[0][i] = min(p[i], sufMin[0][i+1]); sufMin[1][i] = min(inv[i], sufMin[1][i+1]); } vector<long long> ans(n+1); int start = 1; for (int end = 1; end <= n; end++) { if (sufMin[0][end+1] == end+1 && sufMin[1][end+1] == end+1) { // block end init(); for (int i = start; i <= end; i++) { add(p[i]); if (firstIteration) { ans[i] += end - start; } int x = i; int y = p[i]; if (FAKE) { if (rand() % 2) { y = min(n, x + bad()); } else { y = max(1, x - bad()); } } // debug() << "start" imie(x) imie(y); vector<pair<int,int>> path; long long soFar = 0; while(true) { if (done(x, y)) { soFar = c2[who[x]][x-y+B]; break; } path.emplace_back(x, y); // ans[i] += getSumBefore(x-start, y+1); // for (int j = start; j < x; j++) { // if (p[j] < y) { // ans[i]++; // } // } int x2 = sufMin[1][y]; int y2 = sufMin[0][x]; if (FAKE) { x2 = max(1, min(x, y) - 1); y2 = max(1, x2 - bad()); if (rand() % 2) { swap(x2, y2); } if (x2 == 1 || y2 == 1) { break; } } // debug() << imie(x2) imie(y2); if (x == x2 && y == y2) { assert(x2 == y2); break; } // for (int j = x2; j < x; j++) { // if (y2 <= p[j] && p[j] < y) { // ans[i] += turn; // } // } x = x2; y = y2; } reverse(path.begin(), path.end()); debug() << imie(path); for (const pair<int,int>& edge : path) { int x = edge.first; int y = edge.second; soFar += getSumBefore(x-start, y+1); if (who[x] && abs(x-y) <= B) { c2[who[x]][x-y+B] = soFar; } // mapka[{x,y}] = soFar; } ans[i] += soFar; } start = end + 1; } } // debug() << imie(ans); return ans; } int main() { int n; scanf("%d", &n); vector<int> chooseA(n); for (int i = 0; i < n; i++) { chooseA[i] = i + 1; } random_shuffle(chooseA.begin(), chooseA.end()); int nxt = 1; for (int i = 0; i < min(A - 3, n); i++) { who[chooseA[i]] = nxt++; } vector<int> p(n+1); for (int i = 1; i <= n; i++) { if (FAKE) p[i] = i; else scanf("%d", &p[i]); } if (FAKE) { random_shuffle(p.begin() + 1, p.begin() + n + 1); } vector<long long> answer[2]; for (int rep = 0; rep < 2; rep++) { answer[rep] = solve(n, p, rep==0); reverse(p.begin() + 1, p.begin() + n + 1); for (int i = 1; i <= n; i++) { p[i] = n + 1 - p[i]; } } for (int i = 1; i <= n; i++) { printf("%lld ", answer[0][i] + answer[1][n+1-i]); } puts(""); }
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 | #include <bits/stdc++.h> using namespace std; #define sim template < class c #define ris return * this #define dor > debug & operator << #define eni(x) sim > typename \ enable_if<sizeof dud<c>(0) x 1, debug&>::type operator<<(c i) { sim > struct rge { c b, e; }; sim > rge<c> range(c i, c j) { return rge<c>{i, j}; } sim > auto dud(c* x) -> decltype(cerr << *x, 0); sim > char dud(...); struct debug { #ifdef LOCAL ~debug() { cerr << endl; } eni(!=) cerr << boolalpha << i; ris; } eni(==) ris << range(begin(i), end(i)); } sim, class b dor(pair < b, c > d) { ris << "(" << d.first << ", " << d.second << ")"; } sim dor(rge<c> d) { *this << "["; for (auto it = d.b; it != d.e; ++it) *this << ", " + 2 * (it == d.b) << *it; ris << "]"; } #else sim dor(const c&) { ris; } #endif }; #define imie(...) " [" << #__VA_ARGS__ ": " << (__VA_ARGS__) << "] " // debug & operator << (debug & dd, P p) { dd << "(" << p.x << ", " << p.y << ")"; return dd; } bool FAKE = false; // bool FAKE = true; struct Node { int sum = 0; int left, right; }; const int BASE = 256 * 1024; vector<Node> tree[2*BASE]; void recClear(int id) { if ((int) tree[id].size() == 1) { return; } tree[id] = {Node{0,0,0}}; if (id < BASE) { recClear(2*id); recClear(2*id+1); } } void init() { static bool started = false; if (!started) { started = true; for (int i = 1; i < 2 * BASE; i++) { tree[i] = {Node{0,0,0}}; } } else { recClear(1); } } void add(int i) { int id = 1; for (int k = 17; k >= 0; k--) { const Node& last = tree[id].back(); if (i & (1 << k)) { // go right tree[id].push_back(Node{last.sum, last.left, last.right + 1}); id = 2 * id + 1; } else { // go left tree[id].push_back(Node{last.sum + 1, last.left + 1, last.right}); id = 2 * id; } } } int getSumBefore(int tajm, int i) { int id = 1; int sum = 0; for (int k = 17; k >= 1; k--) { // no leaf if (i & (1 << k)) { // go right sum += tree[id][tajm].sum; // it's actually sum from left child tajm = tree[id][tajm].right; id = 2 * id + 1; } else { // go left tajm = tree[id][tajm].left; id = 2 * id; } } return sum; } const int NAX = 2e5 + 5; const int A = 7600; // 30 moves on average const int B = 7000; long long c2[A][2*B+1]; int who[NAX]; int bad() { return B + 2 + rand() % (B / 20); } bool done(int x, int y) { return abs(x-y) <= B && who[x] && c2[who[x]][x-y+B]; } vector<long long> solve(int n, vector<int> p, bool firstIteration) { if (!firstIteration) { for (int i = 0; i < A; i++) { for (int j = 0; j <= 2 * B; j++) { c2[i][j] = 0; } } } // mapka.clear(); vector<int> inv(n+1); for (int i = 1; i <= n; i++) { inv[p[i]] = i; } vector<vector<int>> sufMin(2, vector<int>(n+2, n+1)); for (int i = n; i >= 1; --i) { sufMin[0][i] = min(p[i], sufMin[0][i+1]); sufMin[1][i] = min(inv[i], sufMin[1][i+1]); } vector<long long> ans(n+1); int start = 1; for (int end = 1; end <= n; end++) { if (sufMin[0][end+1] == end+1 && sufMin[1][end+1] == end+1) { // block end init(); for (int i = start; i <= end; i++) { add(p[i]); if (firstIteration) { ans[i] += end - start; } int x = i; int y = p[i]; if (FAKE) { if (rand() % 2) { y = min(n, x + bad()); } else { y = max(1, x - bad()); } } // debug() << "start" imie(x) imie(y); vector<pair<int,int>> path; long long soFar = 0; while(true) { if (done(x, y)) { soFar = c2[who[x]][x-y+B]; break; } path.emplace_back(x, y); // ans[i] += getSumBefore(x-start, y+1); // for (int j = start; j < x; j++) { // if (p[j] < y) { // ans[i]++; // } // } int x2 = sufMin[1][y]; int y2 = sufMin[0][x]; if (FAKE) { x2 = max(1, min(x, y) - 1); y2 = max(1, x2 - bad()); if (rand() % 2) { swap(x2, y2); } if (x2 == 1 || y2 == 1) { break; } } // debug() << imie(x2) imie(y2); if (x == x2 && y == y2) { assert(x2 == y2); break; } // for (int j = x2; j < x; j++) { // if (y2 <= p[j] && p[j] < y) { // ans[i] += turn; // } // } x = x2; y = y2; } reverse(path.begin(), path.end()); debug() << imie(path); for (const pair<int,int>& edge : path) { int x = edge.first; int y = edge.second; soFar += getSumBefore(x-start, y+1); if (who[x] && abs(x-y) <= B) { c2[who[x]][x-y+B] = soFar; } // mapka[{x,y}] = soFar; } ans[i] += soFar; } start = end + 1; } } // debug() << imie(ans); return ans; } int main() { int n; scanf("%d", &n); vector<int> chooseA(n); for (int i = 0; i < n; i++) { chooseA[i] = i + 1; } random_shuffle(chooseA.begin(), chooseA.end()); int nxt = 1; for (int i = 0; i < min(A - 3, n); i++) { who[chooseA[i]] = nxt++; } vector<int> p(n+1); for (int i = 1; i <= n; i++) { if (FAKE) p[i] = i; else scanf("%d", &p[i]); } if (FAKE) { random_shuffle(p.begin() + 1, p.begin() + n + 1); } vector<long long> answer[2]; for (int rep = 0; rep < 2; rep++) { answer[rep] = solve(n, p, rep==0); reverse(p.begin() + 1, p.begin() + n + 1); for (int i = 1; i <= n; i++) { p[i] = n + 1 - p[i]; } } for (int i = 1; i <= n; i++) { printf("%lld ", answer[0][i] + answer[1][n+1-i]); } puts(""); } |