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Submission #1087543

# Submission time Handle Problem Language Result Execution time Memory
1087543 2024-09-12T21:48:30 Z I_am_Polish_Girl Let's Win the Election (JOI22_ho_t3) C++14
61 / 100
 2500 ms 8344 KB 
#include <vector>
#include <algorithm>
#include <map>
#include <set>
#include <unordered_map>
#include <unordered_set>
#include <stack>
#include <queue>
#include <cmath>
#include <random>
#include <chrono>
#include <iomanip>
#include <iostream>

using namespace std;

#define double long double

int log_ = 3;
int inf = 2000000000000000000;
int mod = 1102024631;

int p = 505;


bool cmp(pair <int, int> a, pair <int, int> b)
{
    if (a.second < b.second)
    {
        return true;
    }

    return false;
}

vector <pair <int, int>> vp;

int k;

double c(int col)
{

    int n = vp.size();

    vector <vector <double>> dp0(n + 1);
    vector <vector <double>> dp1;

    for (int i = 0; i <= n; i++)
    {
       dp0[i].resize(n + 1, inf);
    }

    dp0[0][0] = 0;

    dp1 = dp0;

    for (int k = 0; k < n; k++)
    {
        for (int i = 0; i <= n; i++)
        {
            for (int j = 0; j <= n; j++)
            {
                if (i > 0)
                {
                    if (vp[k].second != -1)
                    {
                        dp1[i][j] = min(dp1[i][j], dp0[i - 1][j] + ((0. + vp[k].second) / i));
                    }
                }

                if (j > 0)
                {
                    dp1[i][j] = min(dp1[i][j], dp0[i][j - 1] + ((0. + vp[k].first) / (col + 1)));
                }
            }
        }

        dp0 = dp1;
    }


    vector <double> ans_;

    double ans = inf;
    for (int i = 0; i <= n; i++)
    {
        for (int j = 0; j <= n; j++)
        {
            if (i + j == k)
            {
                if (i == col)
                {
                    ans = min(dp0[i][j], ans);

                    ans_.push_back(dp0[i][j]);
                }
            }
        }
    }

    return ans;
}

mt19937 rnd(15);

int rnd_(int l, int r)
{
    int s = r - l + 1;

    int x = rnd();

    x = abs(x);

    x %= (s + 1);

    return l + x;
}

signed main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);

    int n;
    cin >> n >> k;

    vp.resize(n);

    for (int i = 0; i < n; i++)
    {
        int a, b;
        cin >> a >> b;

        vp[i] = { a,  b };
    }

    sort(vp.begin(), vp.end(), cmp);

    int l = 0;
    int r = n;

    for (int i = 0; i < n; i++)
    {
        if (vp[i].second == -1)
            r--;
    }

    r = min(r, k);

    /*
    while (r - l > 7)
    {
        int m = rnd_(l , r - 1);
        
        if (c(m) < c(m + 1))
            r = m;
        else
            l = m+1;
    }*/

    double ans = inf;

    for (int i = l; i <= r; i++)
    {
        ans = min(c(i) , ans);
    }


    cout << fixed;
    cout << setprecision(9);
    cout << ans;
}

Compilation message

Main.cpp:21:11: warning: overflow in conversion from 'long int' to 'int' changes value from '2000000000000000000' to '1321730048' [-Woverflow]
   21 | int inf = 2000000000000000000;
      |           ^~~~~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 814 ms 8344 KB Output is correct
6 Correct 790 ms 8344 KB Output is correct
7 Correct 820 ms 8140 KB Output is correct
8 Correct 831 ms 8280 KB Output is correct
9 Correct 804 ms 8344 KB Output is correct
10 Correct 796 ms 8284 KB Output is correct

Subtask #2
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 814 ms 8344 KB Output is correct
6 Correct 790 ms 8344 KB Output is correct
7 Correct 820 ms 8140 KB Output is correct
8 Correct 831 ms 8280 KB Output is correct
9 Correct 804 ms 8344 KB Output is correct
10 Correct 796 ms 8284 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Execution timed out 2557 ms 8284 KB Time limit exceeded
13 Halted 0 ms 0 KB -

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct

Subtask #4
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 2 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 2 ms 344 KB Output is correct
20 Correct 2 ms 348 KB Output is correct
21 Correct 2 ms 348 KB Output is correct
22 Correct 3 ms 460 KB Output is correct
23 Correct 2 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 3 ms 348 KB Output is correct
26 Correct 2 ms 348 KB Output is correct
27 Correct 2 ms 348 KB Output is correct
28 Correct 2 ms 348 KB Output is correct
29 Correct 2 ms 344 KB Output is correct
30 Correct 2 ms 348 KB Output is correct
31 Correct 2 ms 344 KB Output is correct
32 Correct 2 ms 348 KB Output is correct
33 Correct 2 ms 348 KB Output is correct
34 Correct 2 ms 472 KB Output is correct
35 Correct 2 ms 348 KB Output is correct
36 Correct 2 ms 348 KB Output is correct
37 Correct 2 ms 348 KB Output is correct
38 Correct 2 ms 348 KB Output is correct
39 Correct 2 ms 344 KB Output is correct
40 Correct 2 ms 348 KB Output is correct

Subtask #5
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 2 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 2 ms 344 KB Output is correct
20 Correct 2 ms 348 KB Output is correct
21 Correct 2 ms 348 KB Output is correct
22 Correct 3 ms 460 KB Output is correct
23 Correct 2 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 3 ms 348 KB Output is correct
26 Correct 2 ms 348 KB Output is correct
27 Correct 2 ms 348 KB Output is correct
28 Correct 2 ms 348 KB Output is correct
29 Correct 2 ms 344 KB Output is correct
30 Correct 2 ms 348 KB Output is correct
31 Correct 2 ms 344 KB Output is correct
32 Correct 2 ms 348 KB Output is correct
33 Correct 2 ms 348 KB Output is correct
34 Correct 2 ms 472 KB Output is correct
35 Correct 2 ms 348 KB Output is correct
36 Correct 2 ms 348 KB Output is correct
37 Correct 2 ms 348 KB Output is correct
38 Correct 2 ms 348 KB Output is correct
39 Correct 2 ms 344 KB Output is correct
40 Correct 2 ms 348 KB Output is correct
41 Correct 208 ms 768 KB Output is correct
42 Correct 196 ms 604 KB Output is correct
43 Correct 402 ms 600 KB Output is correct
44 Correct 377 ms 600 KB Output is correct
45 Correct 675 ms 760 KB Output is correct
46 Correct 612 ms 600 KB Output is correct
47 Correct 863 ms 760 KB Output is correct
48 Correct 758 ms 604 KB Output is correct
49 Correct 1060 ms 852 KB Output is correct
50 Correct 914 ms 600 KB Output is correct
51 Correct 1298 ms 760 KB Output is correct
52 Correct 984 ms 604 KB Output is correct
53 Correct 876 ms 604 KB Output is correct
54 Correct 857 ms 600 KB Output is correct
55 Correct 876 ms 768 KB Output is correct
56 Correct 867 ms 768 KB Output is correct
57 Correct 903 ms 760 KB Output is correct
58 Correct 864 ms 856 KB Output is correct
59 Correct 853 ms 856 KB Output is correct
60 Correct 894 ms 604 KB Output is correct

Subtask #6
0 / 11.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2545 ms 8284 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #7
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 814 ms 8344 KB Output is correct
6 Correct 790 ms 8344 KB Output is correct
7 Correct 820 ms 8140 KB Output is correct
8 Correct 831 ms 8280 KB Output is correct
9 Correct 804 ms 8344 KB Output is correct
10 Correct 796 ms 8284 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Execution timed out 2557 ms 8284 KB Time limit exceeded
13 Halted 0 ms 0 KB -