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Submission #623548

# Submission time Handle Problem Language Result Execution time Memory
623548 2022-08-05T19:50:25 Z AlperenT Minerals (JOI19_minerals) C++17
100 / 100
 332 ms 17136 KB 
#include <bits/stdc++.h>
#include "minerals.h"

using namespace std;

const int N = 50000 + 5;

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

int n, ans[N], ptr, cnt;

set<int> cur;

int query(int x){
    if(cur.find(x) != cur.end()) cur.erase(x);
    else cur.insert(x);

    return cnt = Query(x);
}

vector<int> treevec;

struct SegTree{
    map<int, vector<int>> tree;

    void clear(){
        tree.clear();
    }

    void build(int v = 1, int l = 1, int r = n, bool flag = false){
        if(l > r) return;

        if(l == r) ans[l] = tree[v].front();
        else{
            int m = l + (r - l) * 0.373;

            for(int i = l; i <= m; i++) query(treevec[i - 1]);

            for(auto x : tree[v]){
                if(tree[v * 2].size() == (m - l + 1)) tree[v * 2 + 1].push_back(x);
                else if(tree[v * 2 + 1].size() == (r - (m + 1) + 1)) tree[v * 2].push_back(x);
                else{
                    if(cur.find(x) == cur.end()){
                        int prevcnt = cnt;

                        query(x);

                        if(prevcnt + 1 == cnt) tree[v * 2 + flag].push_back(x);
                        else tree[v * 2 + !flag].push_back(x);
                    }
                    else{
                        int prevcnt = cnt;

                        query(x);

                        if(prevcnt == cnt) tree[v * 2 + !flag].push_back(x);
                        else tree[v * 2 + flag].push_back(x);
                    }
                }
            }

            build(v * 2, l, m, !flag);
            build(v * 2 + 1, m + 1, r, flag);
        }
    }
};

SegTree sgt;

void Solve(int N_) {
    n = N_;

    vector<int> tmp, a, b, c1, c2;

    vector<int> v(n * 2);

    iota(v.begin(), v.end(), 1);

    for(int i = 0; i < n; i++){
        int prvcnt = cnt;

        query(v[i]);

        if(cnt == prvcnt + 1) tmp.push_back(v[i]);
        else a.push_back(v[i]);
    }

    while(!tmp.empty()){
        int prvcnt = cnt;

        query(tmp.back());

        if(cnt == prvcnt - 1) c1.push_back(tmp.back());
        else b.push_back(tmp.back());

        tmp.pop_back();
    }

    treevec = b;

    for(auto x : a) sgt.tree[1].push_back(x);

    sgt.build(1, 1, a.size(), true);

    for(int i = 1; i <= a.size(); i++) Answer(treevec[i - 1], ans[i]);

    a.clear(), b.clear();

    for(int i = n; i < n * 2; i++){
        int prvcnt = cnt;

        query(v[i]);

        if(cnt == prvcnt + 1) tmp.push_back(v[i]);
        else a.push_back(v[i]);
    }

    while(!tmp.empty()){
        int prvcnt = cnt;

        query(tmp.back());

        if(cnt == prvcnt - 1) c2.push_back(tmp.back());
        else b.push_back(tmp.back());

        tmp.pop_back();
    }

    treevec = b;

    sgt.clear();

    for(auto x : a) sgt.tree[1].push_back(x);

    sgt.build(1, 1, a.size(), true);

    for(int i = 1; i <= a.size(); i++) Answer(treevec[i - 1], ans[i]);

    treevec = c1;

    sgt.clear();

    for(auto x : c2) sgt.tree[1].push_back(x);

    sgt.build(1, 1, c1.size(), true);

    for(int i = 1; i <= c1.size(); i++) Answer(treevec[i - 1], ans[i]);
}

Compilation message

minerals.cpp: In member function 'void SegTree::build(int, int, int, bool)':
minerals.cpp:40:39: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   40 |                 if(tree[v * 2].size() == (m - l + 1)) tree[v * 2 + 1].push_back(x);
      |                    ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~
minerals.cpp:41:48: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   41 |                 else if(tree[v * 2 + 1].size() == (r - (m + 1) + 1)) tree[v * 2].push_back(x);
      |                         ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
minerals.cpp: In function 'void Solve(int)':
minerals.cpp:105:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  105 |     for(int i = 1; i <= a.size(); i++) Answer(treevec[i - 1], ans[i]);
      |                    ~~^~~~~~~~~~~
minerals.cpp:137:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  137 |     for(int i = 1; i <= a.size(); i++) Answer(treevec[i - 1], ans[i]);
      |                    ~~^~~~~~~~~~~
minerals.cpp:147:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  147 |     for(int i = 1; i <= c1.size(); i++) Answer(treevec[i - 1], ans[i]);
      |                    ~~^~~~~~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 692 KB Output is correct
2 Correct 10 ms 976 KB Output is correct
3 Correct 22 ms 1760 KB Output is correct
4 Correct 52 ms 3368 KB Output is correct
5 Correct 108 ms 6164 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 5 ms 692 KB Output is correct
6 Correct 10 ms 976 KB Output is correct
7 Correct 22 ms 1760 KB Output is correct
8 Correct 52 ms 3368 KB Output is correct
9 Correct 108 ms 6164 KB Output is correct
10 Correct 4 ms 464 KB Output is correct
11 Correct 59 ms 2672 KB Output is correct
12 Correct 91 ms 3836 KB Output is correct
13 Correct 77 ms 4164 KB Output is correct
14 Correct 79 ms 6016 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 5 ms 692 KB Output is correct
6 Correct 10 ms 976 KB Output is correct
7 Correct 22 ms 1760 KB Output is correct
8 Correct 52 ms 3368 KB Output is correct
9 Correct 108 ms 6164 KB Output is correct
10 Correct 4 ms 464 KB Output is correct
11 Correct 59 ms 2672 KB Output is correct
12 Correct 91 ms 3836 KB Output is correct
13 Correct 77 ms 4164 KB Output is correct
14 Correct 79 ms 6016 KB Output is correct
15 Correct 283 ms 9676 KB Output is correct
16 Correct 278 ms 9800 KB Output is correct
17 Correct 210 ms 10288 KB Output is correct
18 Correct 225 ms 15392 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 5 ms 692 KB Output is correct
6 Correct 10 ms 976 KB Output is correct
7 Correct 22 ms 1760 KB Output is correct
8 Correct 52 ms 3368 KB Output is correct
9 Correct 108 ms 6164 KB Output is correct
10 Correct 4 ms 464 KB Output is correct
11 Correct 59 ms 2672 KB Output is correct
12 Correct 91 ms 3836 KB Output is correct
13 Correct 77 ms 4164 KB Output is correct
14 Correct 79 ms 6016 KB Output is correct
15 Correct 283 ms 9676 KB Output is correct
16 Correct 278 ms 9800 KB Output is correct
17 Correct 210 ms 10288 KB Output is correct
18 Correct 225 ms 15392 KB Output is correct
19 Correct 291 ms 9920 KB Output is correct
20 Correct 286 ms 9920 KB Output is correct
21 Correct 217 ms 10492 KB Output is correct
22 Correct 228 ms 15728 KB Output is correct

Subtask #6
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 5 ms 692 KB Output is correct
6 Correct 10 ms 976 KB Output is correct
7 Correct 22 ms 1760 KB Output is correct
8 Correct 52 ms 3368 KB Output is correct
9 Correct 108 ms 6164 KB Output is correct
10 Correct 4 ms 464 KB Output is correct
11 Correct 59 ms 2672 KB Output is correct
12 Correct 91 ms 3836 KB Output is correct
13 Correct 77 ms 4164 KB Output is correct
14 Correct 79 ms 6016 KB Output is correct
15 Correct 283 ms 9676 KB Output is correct
16 Correct 278 ms 9800 KB Output is correct
17 Correct 210 ms 10288 KB Output is correct
18 Correct 225 ms 15392 KB Output is correct
19 Correct 291 ms 9920 KB Output is correct
20 Correct 286 ms 9920 KB Output is correct
21 Correct 217 ms 10492 KB Output is correct
22 Correct 228 ms 15728 KB Output is correct
23 Correct 299 ms 10108 KB Output is correct
24 Correct 302 ms 10240 KB Output is correct
25 Correct 209 ms 10840 KB Output is correct
26 Correct 230 ms 16028 KB Output is correct

Subtask #7
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 5 ms 692 KB Output is correct
6 Correct 10 ms 976 KB Output is correct
7 Correct 22 ms 1760 KB Output is correct
8 Correct 52 ms 3368 KB Output is correct
9 Correct 108 ms 6164 KB Output is correct
10 Correct 4 ms 464 KB Output is correct
11 Correct 59 ms 2672 KB Output is correct
12 Correct 91 ms 3836 KB Output is correct
13 Correct 77 ms 4164 KB Output is correct
14 Correct 79 ms 6016 KB Output is correct
15 Correct 283 ms 9676 KB Output is correct
16 Correct 278 ms 9800 KB Output is correct
17 Correct 210 ms 10288 KB Output is correct
18 Correct 225 ms 15392 KB Output is correct
19 Correct 291 ms 9920 KB Output is correct
20 Correct 286 ms 9920 KB Output is correct
21 Correct 217 ms 10492 KB Output is correct
22 Correct 228 ms 15728 KB Output is correct
23 Correct 299 ms 10108 KB Output is correct
24 Correct 302 ms 10240 KB Output is correct
25 Correct 209 ms 10840 KB Output is correct
26 Correct 230 ms 16028 KB Output is correct
27 Correct 310 ms 10372 KB Output is correct
28 Correct 308 ms 10360 KB Output is correct
29 Correct 220 ms 11064 KB Output is correct
30 Correct 237 ms 16472 KB Output is correct

Subtask #8
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 5 ms 692 KB Output is correct
6 Correct 10 ms 976 KB Output is correct
7 Correct 22 ms 1760 KB Output is correct
8 Correct 52 ms 3368 KB Output is correct
9 Correct 108 ms 6164 KB Output is correct
10 Correct 4 ms 464 KB Output is correct
11 Correct 59 ms 2672 KB Output is correct
12 Correct 91 ms 3836 KB Output is correct
13 Correct 77 ms 4164 KB Output is correct
14 Correct 79 ms 6016 KB Output is correct
15 Correct 283 ms 9676 KB Output is correct
16 Correct 278 ms 9800 KB Output is correct
17 Correct 210 ms 10288 KB Output is correct
18 Correct 225 ms 15392 KB Output is correct
19 Correct 291 ms 9920 KB Output is correct
20 Correct 286 ms 9920 KB Output is correct
21 Correct 217 ms 10492 KB Output is correct
22 Correct 228 ms 15728 KB Output is correct
23 Correct 299 ms 10108 KB Output is correct
24 Correct 302 ms 10240 KB Output is correct
25 Correct 209 ms 10840 KB Output is correct
26 Correct 230 ms 16028 KB Output is correct
27 Correct 310 ms 10372 KB Output is correct
28 Correct 308 ms 10360 KB Output is correct
29 Correct 220 ms 11064 KB Output is correct
30 Correct 237 ms 16472 KB Output is correct
31 Correct 323 ms 10716 KB Output is correct
32 Correct 319 ms 10564 KB Output is correct
33 Correct 227 ms 11344 KB Output is correct
34 Correct 247 ms 16828 KB Output is correct

Subtask #9
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 5 ms 692 KB Output is correct
6 Correct 10 ms 976 KB Output is correct
7 Correct 22 ms 1760 KB Output is correct
8 Correct 52 ms 3368 KB Output is correct
9 Correct 108 ms 6164 KB Output is correct
10 Correct 4 ms 464 KB Output is correct
11 Correct 59 ms 2672 KB Output is correct
12 Correct 91 ms 3836 KB Output is correct
13 Correct 77 ms 4164 KB Output is correct
14 Correct 79 ms 6016 KB Output is correct
15 Correct 283 ms 9676 KB Output is correct
16 Correct 278 ms 9800 KB Output is correct
17 Correct 210 ms 10288 KB Output is correct
18 Correct 225 ms 15392 KB Output is correct
19 Correct 291 ms 9920 KB Output is correct
20 Correct 286 ms 9920 KB Output is correct
21 Correct 217 ms 10492 KB Output is correct
22 Correct 228 ms 15728 KB Output is correct
23 Correct 299 ms 10108 KB Output is correct
24 Correct 302 ms 10240 KB Output is correct
25 Correct 209 ms 10840 KB Output is correct
26 Correct 230 ms 16028 KB Output is correct
27 Correct 310 ms 10372 KB Output is correct
28 Correct 308 ms 10360 KB Output is correct
29 Correct 220 ms 11064 KB Output is correct
30 Correct 237 ms 16472 KB Output is correct
31 Correct 323 ms 10716 KB Output is correct
32 Correct 319 ms 10564 KB Output is correct
33 Correct 227 ms 11344 KB Output is correct
34 Correct 247 ms 16828 KB Output is correct
35 Correct 332 ms 10876 KB Output is correct
36 Correct 324 ms 10884 KB Output is correct
37 Correct 228 ms 11532 KB Output is correct
38 Correct 259 ms 17136 KB Output is correct