oj.uz

Submission #909975

# Submission time Handle Problem Language Result Execution time Memory
909975 2024-01-17T17:10:02 Z guechotjrhh Minerals (JOI19_minerals) C++14
70 / 100
 46 ms 3928 KB 
#include "minerals.h"
#include<vector>
#include<set>
#include<random>
#include<algorithm>
#include<iostream>
using namespace std;

int n, s;
//2nlog(2n)
random_device rd;
mt19937 g(rd());
int szdp = 7000;
vector<int> dp0(szdp + 1),nxt0(szdp + 1), dp1(szdp+1), nxt1(szdp+1);

void solve(vector<int>& in, vector<int>& rest, int flag) {
    //cout << "solve "<< in.size() << ' ' << rest.size() << ' ' << flag << endl;
    //shuffle(in.begin(), in.end(), g);
    //shuffle(rest.begin(), rest.end(), g);
    if (in.size() == 1) { Answer(in[0], rest[0]); return; }
    
    //better cut - not 1/2
    vector<int> in1, in2;
    //int sz1 = in.size() - nxt1[in.size()];
    int sz1 = 2 * in.size() / 3;
    if (in.size() <= szdp) {
        if (flag) sz1 = in.size() - nxt1[in.size()];
        else sz1 = in.size() - nxt0[in.size()];
    }

    for (int i = 0; i < sz1; i++) in1.push_back(in[i]);
    for (int i = sz1; i < in.size(); i++) in2.push_back(in[i]);
    
    //get rest for in1. possible better - not to take out right away
    int sz = 0;
    for (int i : in2) sz = Query(i);
    vector<int> rest1, rest2;
    for (int j : rest) {
        //if (rest1.size() == in1.size()) { rest2.push_back(j); continue; }
        //if (rest2.size() == in2.size()) { rest1.push_back(j); continue; }

        int u = Query(j);
        if (u == sz) rest1.push_back(j);
        else {
            rest2.push_back(j);
            sz = u;
            //Query(j);
        }
    }
    solve(in1, rest1, 1 - flag);
    if (flag==0) solve(rest2, in2, 0);
    else {
        for (int i : in2) Query(i);
        solve(in2, rest2, 0);
    }
}

void Solve(int N) {
    dp0[1] = dp1[1] = 0;
    for (int i = 2; i <= szdp; i++) {
        dp0[i] = dp1[i] = 1e9;
        for (int j = 1; j <= i / 2; j++) {
            if (dp0[j] + dp1[i - j] + j + i < dp0[i]) {
                dp0[i] = dp0[j] + dp1[i - j] + j + i;
                nxt0[i] = j;
            }
            if (dp0[j] + dp0[i - j] + 2*j + i < dp1[i]) {
                dp1[i] = dp0[j] + dp0[i - j] + 2 * j + i;
                nxt1[i] = j;
            }
        }
    }
    /*for (int i = 2; i <= szdp; i++) {
        int l = 1, r = i / 2, m;
        while (r > l) {
            m = (l + r) / 2;
            int vm = dp1[m] + dp1[i - m] + 2 * m + i;
            int vm1 = dp1[m+1] + dp1[i - m - 1] + 2 * m + 2 + i;
            if (vm > vm1) l = m + 1;
            else r = m;
        }
        dp1[i] = dp1[l] + dp1[i - l] + 2 * l + i;
        nxt1[i] = l;
        //if (dp1[i] != dp[i]) { cout << i << ' ' << dp[i] << ' ' << dp1[i] << ' ' << "ERROR!!!" << endl; break; }
    }
    cout << dp1[N] + N << endl;*/
    n = N; s = n << 1;
    int sz = 0;
    vector<int> in, rest;
    vector<int> vec(s);
    for (int i = 0; i < s; i++)vec[i] = i + 1;
    shuffle(vec.begin(), vec.end(), g);
    for (int i : vec) {
        //if (in.size() < n) {
            int u = Query(i);
            if (u > sz) {
                sz = u;
                in.push_back(i);
            }
            else {
                rest.push_back(i);
            }
        
    }
    solve(in, rest, 1);
}

Compilation message

minerals.cpp: In function 'void solve(std::vector<int>&, std::vector<int>&, int)':
minerals.cpp:26:19: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   26 |     if (in.size() <= szdp) {
      |         ~~~~~~~~~~^~~~~~~
minerals.cpp:32:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   32 |     for (int i = sz1; i < in.size(); i++) in2.push_back(in[i]);
      |                       ~~^~~~~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 600 KB Output is correct
2 Correct 18 ms 344 KB Output is correct
3 Correct 18 ms 600 KB Output is correct
4 Correct 20 ms 564 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 600 KB Output is correct
2 Correct 19 ms 576 KB Output is correct
3 Correct 21 ms 856 KB Output is correct
4 Correct 23 ms 1368 KB Output is correct
5 Correct 27 ms 1624 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 600 KB Output is correct
2 Correct 18 ms 344 KB Output is correct
3 Correct 18 ms 600 KB Output is correct
4 Correct 20 ms 564 KB Output is correct
5 Correct 18 ms 600 KB Output is correct
6 Correct 19 ms 576 KB Output is correct
7 Correct 21 ms 856 KB Output is correct
8 Correct 23 ms 1368 KB Output is correct
9 Correct 27 ms 1624 KB Output is correct
10 Correct 20 ms 560 KB Output is correct
11 Correct 23 ms 1152 KB Output is correct
12 Correct 28 ms 1624 KB Output is correct
13 Correct 27 ms 1692 KB Output is correct
14 Correct 26 ms 1896 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 600 KB Output is correct
2 Correct 18 ms 344 KB Output is correct
3 Correct 18 ms 600 KB Output is correct
4 Correct 20 ms 564 KB Output is correct
5 Correct 18 ms 600 KB Output is correct
6 Correct 19 ms 576 KB Output is correct
7 Correct 21 ms 856 KB Output is correct
8 Correct 23 ms 1368 KB Output is correct
9 Correct 27 ms 1624 KB Output is correct
10 Correct 20 ms 560 KB Output is correct
11 Correct 23 ms 1152 KB Output is correct
12 Correct 28 ms 1624 KB Output is correct
13 Correct 27 ms 1692 KB Output is correct
14 Correct 26 ms 1896 KB Output is correct
15 Correct 44 ms 3284 KB Output is correct
16 Correct 46 ms 3288 KB Output is correct
17 Correct 42 ms 3928 KB Output is correct
18 Correct 42 ms 3368 KB Output is correct

Subtask #5
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 600 KB Output is correct
2 Correct 18 ms 344 KB Output is correct
3 Correct 18 ms 600 KB Output is correct
4 Correct 20 ms 564 KB Output is correct
5 Correct 18 ms 600 KB Output is correct
6 Correct 19 ms 576 KB Output is correct
7 Correct 21 ms 856 KB Output is correct
8 Correct 23 ms 1368 KB Output is correct
9 Correct 27 ms 1624 KB Output is correct
10 Correct 20 ms 560 KB Output is correct
11 Correct 23 ms 1152 KB Output is correct
12 Correct 28 ms 1624 KB Output is correct
13 Correct 27 ms 1692 KB Output is correct
14 Correct 26 ms 1896 KB Output is correct
15 Correct 44 ms 3284 KB Output is correct
16 Correct 46 ms 3288 KB Output is correct
17 Correct 42 ms 3928 KB Output is correct
18 Correct 42 ms 3368 KB Output is correct
19 Incorrect 46 ms 3548 KB Wrong Answer [2]
20 Halted 0 ms 0 KB -

Subtask #6
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 600 KB Output is correct
2 Correct 18 ms 344 KB Output is correct
3 Correct 18 ms 600 KB Output is correct
4 Correct 20 ms 564 KB Output is correct
5 Correct 18 ms 600 KB Output is correct
6 Correct 19 ms 576 KB Output is correct
7 Correct 21 ms 856 KB Output is correct
8 Correct 23 ms 1368 KB Output is correct
9 Correct 27 ms 1624 KB Output is correct
10 Correct 20 ms 560 KB Output is correct
11 Correct 23 ms 1152 KB Output is correct
12 Correct 28 ms 1624 KB Output is correct
13 Correct 27 ms 1692 KB Output is correct
14 Correct 26 ms 1896 KB Output is correct
15 Correct 44 ms 3284 KB Output is correct
16 Correct 46 ms 3288 KB Output is correct
17 Correct 42 ms 3928 KB Output is correct
18 Correct 42 ms 3368 KB Output is correct
19 Incorrect 46 ms 3548 KB Wrong Answer [2]
20 Halted 0 ms 0 KB -

Subtask #7
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 600 KB Output is correct
2 Correct 18 ms 344 KB Output is correct
3 Correct 18 ms 600 KB Output is correct
4 Correct 20 ms 564 KB Output is correct
5 Correct 18 ms 600 KB Output is correct
6 Correct 19 ms 576 KB Output is correct
7 Correct 21 ms 856 KB Output is correct
8 Correct 23 ms 1368 KB Output is correct
9 Correct 27 ms 1624 KB Output is correct
10 Correct 20 ms 560 KB Output is correct
11 Correct 23 ms 1152 KB Output is correct
12 Correct 28 ms 1624 KB Output is correct
13 Correct 27 ms 1692 KB Output is correct
14 Correct 26 ms 1896 KB Output is correct
15 Correct 44 ms 3284 KB Output is correct
16 Correct 46 ms 3288 KB Output is correct
17 Correct 42 ms 3928 KB Output is correct
18 Correct 42 ms 3368 KB Output is correct
19 Incorrect 46 ms 3548 KB Wrong Answer [2]
20 Halted 0 ms 0 KB -

Subtask #8
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 600 KB Output is correct
2 Correct 18 ms 344 KB Output is correct
3 Correct 18 ms 600 KB Output is correct
4 Correct 20 ms 564 KB Output is correct
5 Correct 18 ms 600 KB Output is correct
6 Correct 19 ms 576 KB Output is correct
7 Correct 21 ms 856 KB Output is correct
8 Correct 23 ms 1368 KB Output is correct
9 Correct 27 ms 1624 KB Output is correct
10 Correct 20 ms 560 KB Output is correct
11 Correct 23 ms 1152 KB Output is correct
12 Correct 28 ms 1624 KB Output is correct
13 Correct 27 ms 1692 KB Output is correct
14 Correct 26 ms 1896 KB Output is correct
15 Correct 44 ms 3284 KB Output is correct
16 Correct 46 ms 3288 KB Output is correct
17 Correct 42 ms 3928 KB Output is correct
18 Correct 42 ms 3368 KB Output is correct
19 Incorrect 46 ms 3548 KB Wrong Answer [2]
20 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 600 KB Output is correct
2 Correct 18 ms 344 KB Output is correct
3 Correct 18 ms 600 KB Output is correct
4 Correct 20 ms 564 KB Output is correct
5 Correct 18 ms 600 KB Output is correct
6 Correct 19 ms 576 KB Output is correct
7 Correct 21 ms 856 KB Output is correct
8 Correct 23 ms 1368 KB Output is correct
9 Correct 27 ms 1624 KB Output is correct
10 Correct 20 ms 560 KB Output is correct
11 Correct 23 ms 1152 KB Output is correct
12 Correct 28 ms 1624 KB Output is correct
13 Correct 27 ms 1692 KB Output is correct
14 Correct 26 ms 1896 KB Output is correct
15 Correct 44 ms 3284 KB Output is correct
16 Correct 46 ms 3288 KB Output is correct
17 Correct 42 ms 3928 KB Output is correct
18 Correct 42 ms 3368 KB Output is correct
19 Incorrect 46 ms 3548 KB Wrong Answer [2]
20 Halted 0 ms 0 KB -