oj.uz

Submission #636932

# Submission time Handle Problem Language Result Execution time Memory
636932 2022-08-30T14:49:35 Z danikoynov Let's Win the Election (JOI22_ho_t3) C++14
56 / 100
 263 ms 21460 KB 
/**
 ____ ____ ____ ____ ____ ____
||l |||e |||i |||n |||a |||d ||
||__|||__|||__|||__|||__|||__||
|/__\|/__\|/__\|/__\|/__\|/__\|

**/

#include<bits/stdc++.h>
#define endl '\n'

using namespace std;
typedef long long ll;

void speed()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
}

const int maxn = 510, smalln = 110;
struct city
{
    int a, b, idx;
}c[maxn], ct[maxn];
int n, k, used[maxn];

bool cmpa(city c1, city c2)
{
    return c1.a < c2.a;
}
bool cmpb(city c1, city c2)
{
    if (c1.b != -1 && c2.b != -1)
        return c1.b < c2.b;
    if (c1.b != -1)
        return true;
    if (c2.b != -1)
        return false;
    return c1.idx < c2.idx;
}

double dp[smalln][smalln][smalln];
/// dp[i][j][f] - smallest time up to the i-th city using j votes and f collaborators
void solve()
{
    cin >> n >> k;
    int col = 0;
    for (int i = 1; i <= n; i ++)
    {
        cin >> c[i].a >> c[i].b;
        if (c[i].b != -1)
            col ++;
        c[i].idx = i;
        ct[i] = c[i];
    }

    sort(c + 1, c + n + 1, cmpb);

    double ans = 1e18;
    for (int goal = 0; goal <= min(k, col); goal ++)
    {
        for (int i = 0; i <= n; i ++)
            for (int j = 0; j <= k; j ++)
            for (int f = 0; f <= goal; f ++)
            dp[i][j][f] = 1e18;

        dp[0][0][0] = 0.0;
        for (int i = 1; i <= n; i ++)
            for (int j = 0; j <= k; j ++)
            for (int f = 0; f <= goal; f ++)
        {
            dp[i][j][f] = dp[i - 1][j][f];
            if (j >= 1)
            {
                dp[i][j][f] = min(dp[i][j][f], dp[i - 1][j - 1][f] + c[i].a / (double)(goal + 1.0));
            }
            if (f >= 1 && c[i].b != -1 && j >= 1)
            {
                dp[i][j][f] = min(dp[i][j][f], dp[i - 1][j - 1][f - 1] + c[i].b / (double)(f));
            }
        }

        /**cout << "--------- " << goal << " -------------------" << endl;
        for (int i = 1; i <= n; i ++)
            for (int j = 0; j <= k; j ++)
            for (int f = 0; f <= goal; f ++)
            cout << i << " " << j << " " << f << " " << dp[i][j][f] << endl;*/

        ans = min(ans, dp[n][k][goal]);
    }
    printf("%0.6f\n", ans);
}

int main()
{
    solve();
    return 0;
}

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Runtime error 9 ms 10976 KB Execution killed with signal 11
6 Halted 0 ms 0 KB -

Subtask #2
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Runtime error 9 ms 10976 KB Execution killed with signal 11
6 Halted 0 ms 0 KB -

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct

Subtask #4
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 468 KB Output is correct
18 Correct 1 ms 560 KB Output is correct
19 Correct 1 ms 568 KB Output is correct
20 Correct 1 ms 596 KB Output is correct
21 Correct 1 ms 596 KB Output is correct
22 Correct 1 ms 568 KB Output is correct
23 Correct 1 ms 568 KB Output is correct
24 Correct 1 ms 596 KB Output is correct
25 Correct 1 ms 724 KB Output is correct
26 Correct 1 ms 692 KB Output is correct
27 Correct 1 ms 596 KB Output is correct
28 Correct 1 ms 596 KB Output is correct
29 Correct 1 ms 596 KB Output is correct
30 Correct 1 ms 568 KB Output is correct
31 Correct 1 ms 572 KB Output is correct
32 Correct 1 ms 596 KB Output is correct
33 Correct 1 ms 596 KB Output is correct
34 Correct 1 ms 596 KB Output is correct
35 Correct 1 ms 596 KB Output is correct
36 Correct 1 ms 596 KB Output is correct
37 Correct 1 ms 568 KB Output is correct
38 Correct 1 ms 564 KB Output is correct
39 Correct 1 ms 596 KB Output is correct
40 Correct 1 ms 596 KB Output is correct

Subtask #5
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 468 KB Output is correct
18 Correct 1 ms 560 KB Output is correct
19 Correct 1 ms 568 KB Output is correct
20 Correct 1 ms 596 KB Output is correct
21 Correct 1 ms 596 KB Output is correct
22 Correct 1 ms 568 KB Output is correct
23 Correct 1 ms 568 KB Output is correct
24 Correct 1 ms 596 KB Output is correct
25 Correct 1 ms 724 KB Output is correct
26 Correct 1 ms 692 KB Output is correct
27 Correct 1 ms 596 KB Output is correct
28 Correct 1 ms 596 KB Output is correct
29 Correct 1 ms 596 KB Output is correct
30 Correct 1 ms 568 KB Output is correct
31 Correct 1 ms 572 KB Output is correct
32 Correct 1 ms 596 KB Output is correct
33 Correct 1 ms 596 KB Output is correct
34 Correct 1 ms 596 KB Output is correct
35 Correct 1 ms 596 KB Output is correct
36 Correct 1 ms 596 KB Output is correct
37 Correct 1 ms 568 KB Output is correct
38 Correct 1 ms 564 KB Output is correct
39 Correct 1 ms 596 KB Output is correct
40 Correct 1 ms 596 KB Output is correct
41 Correct 2 ms 2004 KB Output is correct
42 Correct 2 ms 1976 KB Output is correct
43 Correct 8 ms 3360 KB Output is correct
44 Correct 9 ms 3284 KB Output is correct
45 Correct 37 ms 5100 KB Output is correct
46 Correct 30 ms 5092 KB Output is correct
47 Correct 69 ms 6356 KB Output is correct
48 Correct 67 ms 6408 KB Output is correct
49 Correct 134 ms 7756 KB Output is correct
50 Correct 122 ms 7688 KB Output is correct
51 Correct 263 ms 9476 KB Output is correct
52 Correct 177 ms 9448 KB Output is correct
53 Correct 78 ms 6392 KB Output is correct
54 Correct 78 ms 6408 KB Output is correct
55 Correct 68 ms 6404 KB Output is correct
56 Correct 72 ms 6392 KB Output is correct
57 Correct 66 ms 6408 KB Output is correct
58 Correct 68 ms 6480 KB Output is correct
59 Correct 74 ms 6396 KB Output is correct
60 Correct 75 ms 6408 KB Output is correct

Subtask #6
0 / 11.0

# Verdict Execution time Memory Grader output
1 Runtime error 13 ms 21460 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #7
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Runtime error 9 ms 10976 KB Execution killed with signal 11
6 Halted 0 ms 0 KB -