oj.uz

Submission #547697

# Submission time Handle Problem Language Result Execution time Memory
547697 2022-04-11T13:06:56 Z cig32 Bubble Sort 2 (JOI18_bubblesort2) C++17
38 / 100
 360 ms 26200 KB 
#include "bubblesort2.h"

#include <cstdio>
#include <cstdlib>
#include <vector>
#include <unordered_map>
#include <queue>
#include <algorithm>
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/pb_ds/detail/standard_policies.hpp>
using namespace std;
using namespace __gnu_pbds;
typedef tree<pair<long long, long long>, null_type, less<pair<long long, long long> >, rb_tree_tag, tree_order_statistics_node_update> ordered_set;

const int lmao = 4001000;
int qwq = 1000003;
struct node {
  long long upd = 0, val = 0;
} st[lmao];

void u(int l, int r, int constl, int constr, int idx, long long val) {
  if(l <= constl && constr <= r) {
    st[idx].upd += val;
    st[idx].val += val;
    return;
  }
  int mid = (constl + constr) >> 1;
  st[2*idx+1].upd += st[idx].upd;
  st[2*idx+2].upd += st[idx].upd;
  st[2*idx+1].val += st[idx].upd;
  st[2*idx+2].val += st[idx].upd;
  st[idx].upd = 0;
  if(mid < l || r < constl) u(l, r, mid+1, constr, 2*idx+2, val);
  else if(constr < l || r < mid+1) u(l, r, constl, mid, 2*idx+1, val);
  else {
    u(l, r, constl, mid, 2*idx + 1, val);
    u(l, r, mid+1, constr, 2*idx + 2, val);
  }
  st[idx].val = max(st[2*idx+1].val, st[2*idx+2].val);
}

long long qu(int l, int r, int constl, int constr, int idx) {
  if(l <= constl && constr <= r) return st[idx].val;
  int mid = (constl + constr) >> 1;
  st[2*idx+1].upd += st[idx].upd;
  st[2*idx+2].upd += st[idx].upd;
  st[2*idx+1].val += st[idx].upd;
  st[2*idx+2].val += st[idx].upd;
  st[idx].upd = 0;
  if(mid < l || r < constl) return qu(l, r, mid+1, constr, 2*idx+2);
  else if(constr < l || r < mid+1) return qu(l, r, constl, mid, 2*idx+1);
  else {
    return max(qu(l, r, constl, mid, 2*idx+1), qu(l, r, mid+1, constr, 2*idx+2));
  }
}

void range_add(int l, int r, long long v) {
  u(l, r, 0, qwq, 0, v);
}

long long query_max(int l, int r) {
  return qu(l, r, 0, qwq, 0);
}

std::vector<int> countScans(std::vector<int> A,std::vector<int> X,std::vector<int> V){
  ordered_set ost;
  int N=A.size();
	int Q=X.size();
	std::vector<int> answer(Q);
  set<int> s;
  for(int i=0; i<N; i++) {
    s.insert(A[i]);
  }
  for(int i=0; i<Q; i++) s.insert(V[i]);
  unordered_map<int, int> is;
  int nxt = 0;
  for(int x: s) {
    is[x] = nxt++;
  }
  for(int i=0; i<N; i++) A[i] = is[A[i]];
  for(int i=0; i<Q; i++) V[i] = is[V[i]];
  for(int i=0; i<N; i++) ost.insert({A[i], i});
  pair<int, int> B[N];
  for(int i=0; i<N; i++) {
    B[i] = {A[i], i};
  }
  sort(B, B+N);
  multiset<pair<long long, long long> > ms[N+Q];
  unordered_map<long long, long long> ono[N+Q];
  for(int i=0; i<N; i++) {
    ms[B[i].first].insert({B[i].second - i, B[i].second});
    ono[B[i].first][B[i].second] = B[i].second - i;
  }
  for(int i=0; i<N+Q; i++) {
    if(ms[i].empty()) {
      range_add(i, i, -1e10);
    }
    else {
      range_add(i, i, (*ms[i].rbegin()).first);
    }
  }
  for(int i=0; i<Q; i++) { 
    int x = A[X[i]];
    int y = V[i];
    if(A[X[i]] == V[i]) {
      answer[i] = query_max(0, N+Q - 1);
      continue;
    }
    if(x > y) swap(x, y);
    if(x + 1 < y) {
      if(A[X[i]] > V[i]) {
        range_add(x+1, y-1, -1);
      }
      else {
        range_add(x+1, y-1, 1);
      }
    }
    x = A[X[i]];
    y = V[i];
    int one = ms[x].size();
    ms[x].erase({ono[x][X[i]], X[i]});
    int two = ms[x].size();
    assert(one != two);
    if(ms[x].size()) {
      long long ogname = query_max(x, x);
      long long q = (*ms[x].rbegin()).second;
      ost.erase({x, X[i]});
      ost.insert({y, X[i]});
      range_add(x, x, q - (int)ost.order_of_key({A[q], q}) - ogname);
      //cout << "tar " << q - (int)ost.order_of_key({A[q], q}) << "\n";
      ost.erase({y, X[i]});
    }
    else {
    //  cout << "rip :rofl:\n";
      ost.erase({x, X[i]});
      long long ogname = query_max(x, x);
      range_add(x, x, -1e10 - ogname); // res = -1e17
    }
    ost.insert({y, X[i]});
    A[X[i]] = V[i];
    ms[y].insert({X[i] - (int)ost.order_of_key({V[i], X[i]}), X[i]});
    ono[y][X[i]] = X[i] - (int)ost.order_of_key({V[i], X[i]});
   // cout << X[i] << " " << (int)ost.order_of_key({V[i], X[i]}) << " " << X[i] - (int)ost.order_of_key({V[i], X[i]}) << " g\n";
    long long q = (*ms[y].rbegin()).second;
    long long ogname = query_max(V[i], V[i]);
    range_add(V[i], V[i], q - (int)ost.order_of_key({A[q], q}) - ogname);
    answer[i] = query_max(0, N + Q - 1);
    /*
    pair<int, int> B[N];
    for(int j=0; j<N; j++) B[j] = {A[j], j};
    sort(B, B+N);
    int expected = 0;
    for(int j=0; j<N; j++) expected = max(expected, B[j].second - j);
    if(expected != answer[i]) {
      cout << "fuck!!\n";
    //  cout << "query "<<i<<": expected "<<expected<<" found "<<answer[i]<<"\n";
    }
    // for(int j=0; j<N+Q; j++) cout << (query_max(j, j) < -1e15 ? "q" : to_string(query_max(j, j))) << " ";
    //  cout << "\n";
    */
  }
  
	return answer;
}

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 724 KB Output is correct
2 Correct 5 ms 1068 KB Output is correct
3 Correct 10 ms 2132 KB Output is correct
4 Correct 10 ms 2096 KB Output is correct
5 Correct 13 ms 2044 KB Output is correct
6 Correct 9 ms 2132 KB Output is correct
7 Correct 10 ms 2132 KB Output is correct
8 Correct 9 ms 2072 KB Output is correct
9 Correct 9 ms 2132 KB Output is correct
10 Correct 9 ms 2004 KB Output is correct
11 Correct 9 ms 2004 KB Output is correct
12 Correct 9 ms 2004 KB Output is correct
13 Correct 8 ms 1876 KB Output is correct
14 Correct 8 ms 1876 KB Output is correct
15 Correct 10 ms 1876 KB Output is correct
16 Correct 9 ms 1844 KB Output is correct
17 Correct 8 ms 1876 KB Output is correct
18 Correct 10 ms 1872 KB Output is correct

Subtask #2
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 724 KB Output is correct
2 Correct 5 ms 1068 KB Output is correct
3 Correct 10 ms 2132 KB Output is correct
4 Correct 10 ms 2096 KB Output is correct
5 Correct 13 ms 2044 KB Output is correct
6 Correct 9 ms 2132 KB Output is correct
7 Correct 10 ms 2132 KB Output is correct
8 Correct 9 ms 2072 KB Output is correct
9 Correct 9 ms 2132 KB Output is correct
10 Correct 9 ms 2004 KB Output is correct
11 Correct 9 ms 2004 KB Output is correct
12 Correct 9 ms 2004 KB Output is correct
13 Correct 8 ms 1876 KB Output is correct
14 Correct 8 ms 1876 KB Output is correct
15 Correct 10 ms 1876 KB Output is correct
16 Correct 9 ms 1844 KB Output is correct
17 Correct 8 ms 1876 KB Output is correct
18 Correct 10 ms 1872 KB Output is correct
19 Correct 37 ms 6548 KB Output is correct
20 Correct 40 ms 7408 KB Output is correct
21 Correct 41 ms 7376 KB Output is correct
22 Correct 42 ms 7448 KB Output is correct
23 Correct 40 ms 6988 KB Output is correct
24 Correct 45 ms 6928 KB Output is correct
25 Correct 43 ms 6680 KB Output is correct
26 Correct 43 ms 6696 KB Output is correct
27 Correct 34 ms 6484 KB Output is correct
28 Correct 35 ms 6512 KB Output is correct

Subtask #3
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 41 ms 9568 KB Output is correct
2 Correct 180 ms 17960 KB Output is correct
3 Correct 351 ms 25736 KB Output is correct
4 Correct 319 ms 25748 KB Output is correct
5 Correct 357 ms 26200 KB Output is correct
6 Correct 303 ms 25792 KB Output is correct
7 Correct 360 ms 26108 KB Output is correct
8 Incorrect 298 ms 25936 KB Output isn't correct
9 Halted 0 ms 0 KB -

Subtask #4
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 724 KB Output is correct
2 Correct 5 ms 1068 KB Output is correct
3 Correct 10 ms 2132 KB Output is correct
4 Correct 10 ms 2096 KB Output is correct
5 Correct 13 ms 2044 KB Output is correct
6 Correct 9 ms 2132 KB Output is correct
7 Correct 10 ms 2132 KB Output is correct
8 Correct 9 ms 2072 KB Output is correct
9 Correct 9 ms 2132 KB Output is correct
10 Correct 9 ms 2004 KB Output is correct
11 Correct 9 ms 2004 KB Output is correct
12 Correct 9 ms 2004 KB Output is correct
13 Correct 8 ms 1876 KB Output is correct
14 Correct 8 ms 1876 KB Output is correct
15 Correct 10 ms 1876 KB Output is correct
16 Correct 9 ms 1844 KB Output is correct
17 Correct 8 ms 1876 KB Output is correct
18 Correct 10 ms 1872 KB Output is correct
19 Correct 37 ms 6548 KB Output is correct
20 Correct 40 ms 7408 KB Output is correct
21 Correct 41 ms 7376 KB Output is correct
22 Correct 42 ms 7448 KB Output is correct
23 Correct 40 ms 6988 KB Output is correct
24 Correct 45 ms 6928 KB Output is correct
25 Correct 43 ms 6680 KB Output is correct
26 Correct 43 ms 6696 KB Output is correct
27 Correct 34 ms 6484 KB Output is correct
28 Correct 35 ms 6512 KB Output is correct
29 Correct 41 ms 9568 KB Output is correct
30 Correct 180 ms 17960 KB Output is correct
31 Correct 351 ms 25736 KB Output is correct
32 Correct 319 ms 25748 KB Output is correct
33 Correct 357 ms 26200 KB Output is correct
34 Correct 303 ms 25792 KB Output is correct
35 Correct 360 ms 26108 KB Output is correct
36 Incorrect 298 ms 25936 KB Output isn't correct
37 Halted 0 ms 0 KB -