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Submission #743497

# Submission time Handle Problem Language Result Execution time Memory
743497 2023-05-17T12:36:56 Z boris_mihov Roller Coaster Railroad (IOI16_railroad) C++17
34 / 100
 91 ms 10584 KB 
#include "railroad.h"
#include <algorithm>
#include <iostream>
#include <numeric>
#include <vector>

typedef long long llong;
const int MAXB = (1 << 16);
const int MAXN = 16;

int n;
int s[MAXN];
int t[MAXN];
llong dp[MAXB][MAXN];
bool bl[MAXB][MAXN];

llong f(int mask, int last)
{
    if (__builtin_popcount(mask) == n)
    {
        return 0;
    }

    if (bl[mask][last])
    {
        return dp[mask][last];
    }

    bl[mask][last] = true;
    dp[mask][last] = 1e18;
    for (int i = 0 ; i < n ; ++i)
    {
        if (mask & (1 << i))
        {
            continue;
        }

        dp[mask][last] = std::min(dp[mask][last], f(mask | (1 << i), i) + std::max(0, t[last] - s[i]));
    }

    return dp[mask][last];
}

llong plan_roller_coaster(std::vector<int> S, std::vector<int> T) 
{
    n = S.size();
    for (int i = 0 ; i < n ; ++i)
    {
        s[i] = S[i];
        t[i] = T[i];
    }

    llong ans = 1e18;
    for (int i = 0 ; i < n ; ++i)
    {
        ans = std::min(ans, f(1 << i, i));
    }

    return ans;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB n = 2
2 Correct 1 ms 308 KB n = 2
3 Correct 1 ms 212 KB n = 2
4 Correct 1 ms 212 KB n = 2
5 Correct 0 ms 308 KB n = 2
6 Correct 0 ms 304 KB n = 2
7 Correct 0 ms 212 KB n = 3
8 Correct 0 ms 304 KB n = 3
9 Correct 1 ms 212 KB n = 3
10 Correct 1 ms 340 KB n = 8
11 Correct 1 ms 340 KB n = 8
12 Correct 1 ms 340 KB n = 8
13 Correct 1 ms 312 KB n = 8
14 Correct 1 ms 340 KB n = 8
15 Correct 1 ms 340 KB n = 8
16 Correct 0 ms 340 KB n = 8
17 Correct 1 ms 340 KB n = 8
18 Correct 1 ms 308 KB n = 8
19 Correct 0 ms 212 KB n = 3
20 Correct 0 ms 304 KB n = 7
21 Correct 0 ms 340 KB n = 8
22 Correct 0 ms 304 KB n = 8
23 Correct 1 ms 340 KB n = 8
24 Correct 0 ms 312 KB n = 8
25 Correct 1 ms 340 KB n = 8

Subtask #2
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB n = 2
2 Correct 1 ms 308 KB n = 2
3 Correct 1 ms 212 KB n = 2
4 Correct 1 ms 212 KB n = 2
5 Correct 0 ms 308 KB n = 2
6 Correct 0 ms 304 KB n = 2
7 Correct 0 ms 212 KB n = 3
8 Correct 0 ms 304 KB n = 3
9 Correct 1 ms 212 KB n = 3
10 Correct 1 ms 340 KB n = 8
11 Correct 1 ms 340 KB n = 8
12 Correct 1 ms 340 KB n = 8
13 Correct 1 ms 312 KB n = 8
14 Correct 1 ms 340 KB n = 8
15 Correct 1 ms 340 KB n = 8
16 Correct 0 ms 340 KB n = 8
17 Correct 1 ms 340 KB n = 8
18 Correct 1 ms 308 KB n = 8
19 Correct 0 ms 212 KB n = 3
20 Correct 0 ms 304 KB n = 7
21 Correct 0 ms 340 KB n = 8
22 Correct 0 ms 304 KB n = 8
23 Correct 1 ms 340 KB n = 8
24 Correct 0 ms 312 KB n = 8
25 Correct 1 ms 340 KB n = 8
26 Correct 1 ms 340 KB n = 8
27 Correct 1 ms 340 KB n = 8
28 Correct 1 ms 340 KB n = 8
29 Correct 80 ms 9512 KB n = 16
30 Correct 75 ms 9512 KB n = 16
31 Correct 76 ms 9520 KB n = 16
32 Correct 82 ms 9516 KB n = 16
33 Correct 75 ms 9524 KB n = 16
34 Correct 79 ms 9520 KB n = 16
35 Correct 77 ms 9428 KB n = 16
36 Correct 27 ms 4932 KB n = 15
37 Correct 1 ms 312 KB n = 8
38 Correct 91 ms 9516 KB n = 16
39 Correct 80 ms 9516 KB n = 16
40 Correct 1 ms 340 KB n = 9
41 Correct 88 ms 9428 KB n = 16
42 Correct 80 ms 9428 KB n = 16
43 Correct 91 ms 9524 KB n = 16
44 Correct 1 ms 340 KB n = 9
45 Correct 30 ms 4920 KB n = 15
46 Correct 77 ms 9428 KB n = 16
47 Correct 82 ms 9508 KB n = 16
48 Correct 79 ms 9428 KB n = 16

Subtask #3
0 / 30.0

# Verdict Execution time Memory Grader output
1 Runtime error 50 ms 10584 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #4
0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB n = 2
2 Correct 1 ms 308 KB n = 2
3 Correct 1 ms 212 KB n = 2
4 Correct 1 ms 212 KB n = 2
5 Correct 0 ms 308 KB n = 2
6 Correct 0 ms 304 KB n = 2
7 Correct 0 ms 212 KB n = 3
8 Correct 0 ms 304 KB n = 3
9 Correct 1 ms 212 KB n = 3
10 Correct 1 ms 340 KB n = 8
11 Correct 1 ms 340 KB n = 8
12 Correct 1 ms 340 KB n = 8
13 Correct 1 ms 312 KB n = 8
14 Correct 1 ms 340 KB n = 8
15 Correct 1 ms 340 KB n = 8
16 Correct 0 ms 340 KB n = 8
17 Correct 1 ms 340 KB n = 8
18 Correct 1 ms 308 KB n = 8
19 Correct 0 ms 212 KB n = 3
20 Correct 0 ms 304 KB n = 7
21 Correct 0 ms 340 KB n = 8
22 Correct 0 ms 304 KB n = 8
23 Correct 1 ms 340 KB n = 8
24 Correct 0 ms 312 KB n = 8
25 Correct 1 ms 340 KB n = 8
26 Correct 1 ms 340 KB n = 8
27 Correct 1 ms 340 KB n = 8
28 Correct 1 ms 340 KB n = 8
29 Correct 80 ms 9512 KB n = 16
30 Correct 75 ms 9512 KB n = 16
31 Correct 76 ms 9520 KB n = 16
32 Correct 82 ms 9516 KB n = 16
33 Correct 75 ms 9524 KB n = 16
34 Correct 79 ms 9520 KB n = 16
35 Correct 77 ms 9428 KB n = 16
36 Correct 27 ms 4932 KB n = 15
37 Correct 1 ms 312 KB n = 8
38 Correct 91 ms 9516 KB n = 16
39 Correct 80 ms 9516 KB n = 16
40 Correct 1 ms 340 KB n = 9
41 Correct 88 ms 9428 KB n = 16
42 Correct 80 ms 9428 KB n = 16
43 Correct 91 ms 9524 KB n = 16
44 Correct 1 ms 340 KB n = 9
45 Correct 30 ms 4920 KB n = 15
46 Correct 77 ms 9428 KB n = 16
47 Correct 82 ms 9508 KB n = 16
48 Correct 79 ms 9428 KB n = 16
49 Runtime error 50 ms 10584 KB Execution killed with signal 11
50 Halted 0 ms 0 KB -