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Submission #580168

# Submission time Handle Problem Language Result Execution time Memory
580168 2022-06-20T16:30:29 Z Elias Boarding Passes (BOI22_passes) C++17
60 / 100
 498 ms 1048576 KB 
#include <bits/stdc++.h>

#ifndef _DEBUG
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx")
#endif

using namespace std;

#define int int64_t

signed main()
{
    cin.tie(0);
    ios_base::sync_with_stdio(false);

    string s;
    cin >> s;

    int n = s.size();
    int g = *max_element(s.begin(), s.end()) - 'A' + 1;

    vector<int> a(n);
    vector<vector<int>> pos(g);

    for (int i = 0; i < n; i++)
        pos[a[i] = s[i] - 'A'].push_back(i);

    vector<vector<int>> prefix(1 << g, vector<int>(n));
    vector<vector<int>> suffix(1 << g, vector<int>(n));

    for (int k = 0; k < 1 << g; k++)
    {
        for (int i = 1; i < n; i++)
            prefix[k][i] = prefix[k][i - 1] + bool(1 << a[i - 1] & k);
        for (int i = n - 2; i >= 0; i--)
            suffix[k][i] = suffix[k][i + 1] + bool(1 << a[i + 1] & k);
    }

    vector<int> dp(1 << g, 1e20);
    dp[0] = 0;

    for (int b = 1; b < 1 << g; b++)
    {
        for (int i = 0; i < g; i++)
        {
            if (!(b & (1 << i)))
                continue;

            int cost = 0;

            for (int p : pos[i])
            {
                cost += min(2 * prefix[b][p] - prefix[(1 << i)][p], 2 * suffix[b][p] - suffix[(1 << i)][p]);
            }

            dp[b] = min(dp[b], dp[b ^ (1 << i)] + cost);
        }
    }

    cout << setprecision(15) << dp.back() * 0.5;
}

Compilation message

passes.cpp: In function 'int main()':
passes.cpp:41:28: warning: overflow in conversion from 'double' to 'std::vector<long int>::value_type' {aka 'long int'} changes value from '1.0e+20' to '9223372036854775807' [-Woverflow]
   41 |     vector<int> dp(1 << g, 1e20);
      |                            ^~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 288 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 5 ms 4772 KB Output is correct
7 Correct 5 ms 5676 KB Output is correct
8 Correct 5 ms 6012 KB Output is correct
9 Correct 5 ms 6012 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 468 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 468 KB Output is correct
8 Correct 1 ms 312 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct

Subtask #3
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 468 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 468 KB Output is correct
8 Correct 1 ms 312 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 468 KB Output is correct
21 Correct 1 ms 468 KB Output is correct
22 Correct 1 ms 468 KB Output is correct
23 Correct 0 ms 340 KB Output is correct
24 Correct 1 ms 468 KB Output is correct
25 Correct 0 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 0 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 0 ms 340 KB Output is correct
31 Correct 1 ms 340 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 0 ms 340 KB Output is correct
35 Correct 29 ms 40676 KB Output is correct
36 Correct 30 ms 40584 KB Output is correct
37 Correct 124 ms 160952 KB Output is correct
38 Correct 107 ms 160956 KB Output is correct
39 Correct 109 ms 160984 KB Output is correct
40 Correct 117 ms 160276 KB Output is correct
41 Correct 126 ms 157620 KB Output is correct
42 Correct 129 ms 157520 KB Output is correct
43 Correct 121 ms 157636 KB Output is correct
44 Correct 128 ms 157516 KB Output is correct
45 Correct 129 ms 157780 KB Output is correct
46 Correct 136 ms 157512 KB Output is correct

Subtask #4
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 288 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 5 ms 4772 KB Output is correct
7 Correct 5 ms 5676 KB Output is correct
8 Correct 5 ms 6012 KB Output is correct
9 Correct 5 ms 6012 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 1 ms 468 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 1 ms 468 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 0 ms 468 KB Output is correct
17 Correct 1 ms 312 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 0 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 0 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 0 ms 340 KB Output is correct
24 Correct 0 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 0 ms 212 KB Output is correct
28 Correct 1 ms 212 KB Output is correct
29 Correct 1 ms 468 KB Output is correct
30 Correct 1 ms 468 KB Output is correct
31 Correct 1 ms 468 KB Output is correct
32 Correct 0 ms 340 KB Output is correct
33 Correct 1 ms 468 KB Output is correct
34 Correct 0 ms 340 KB Output is correct
35 Correct 1 ms 340 KB Output is correct
36 Correct 0 ms 340 KB Output is correct
37 Correct 1 ms 340 KB Output is correct
38 Correct 1 ms 340 KB Output is correct
39 Correct 0 ms 340 KB Output is correct
40 Correct 1 ms 340 KB Output is correct
41 Correct 1 ms 340 KB Output is correct
42 Correct 1 ms 340 KB Output is correct
43 Correct 0 ms 340 KB Output is correct
44 Correct 29 ms 40676 KB Output is correct
45 Correct 30 ms 40584 KB Output is correct
46 Correct 124 ms 160952 KB Output is correct
47 Correct 107 ms 160956 KB Output is correct
48 Correct 109 ms 160984 KB Output is correct
49 Correct 117 ms 160276 KB Output is correct
50 Correct 126 ms 157620 KB Output is correct
51 Correct 129 ms 157520 KB Output is correct
52 Correct 121 ms 157636 KB Output is correct
53 Correct 128 ms 157516 KB Output is correct
54 Correct 129 ms 157780 KB Output is correct
55 Correct 136 ms 157512 KB Output is correct
56 Correct 10 ms 9300 KB Output is correct
57 Correct 18 ms 18516 KB Output is correct
58 Correct 0 ms 340 KB Output is correct
59 Correct 0 ms 212 KB Output is correct
60 Correct 1 ms 212 KB Output is correct
61 Correct 0 ms 212 KB Output is correct
62 Correct 0 ms 340 KB Output is correct
63 Correct 5 ms 4852 KB Output is correct
64 Correct 5 ms 5676 KB Output is correct
65 Correct 5 ms 6048 KB Output is correct
66 Correct 6 ms 6140 KB Output is correct
67 Correct 0 ms 212 KB Output is correct
68 Correct 0 ms 212 KB Output is correct
69 Correct 1 ms 468 KB Output is correct
70 Correct 1 ms 468 KB Output is correct
71 Correct 1 ms 468 KB Output is correct
72 Correct 0 ms 340 KB Output is correct
73 Correct 1 ms 468 KB Output is correct
74 Correct 1 ms 340 KB Output is correct
75 Correct 1 ms 340 KB Output is correct
76 Correct 0 ms 340 KB Output is correct
77 Correct 1 ms 340 KB Output is correct
78 Correct 1 ms 340 KB Output is correct
79 Correct 1 ms 456 KB Output is correct
80 Correct 0 ms 340 KB Output is correct
81 Correct 1 ms 340 KB Output is correct
82 Correct 0 ms 340 KB Output is correct
83 Correct 1 ms 340 KB Output is correct
84 Correct 29 ms 40668 KB Output is correct
85 Correct 29 ms 40660 KB Output is correct
86 Correct 123 ms 160972 KB Output is correct
87 Correct 114 ms 160956 KB Output is correct
88 Correct 109 ms 160844 KB Output is correct
89 Correct 115 ms 160320 KB Output is correct
90 Correct 125 ms 157516 KB Output is correct
91 Correct 123 ms 157516 KB Output is correct
92 Correct 123 ms 157532 KB Output is correct
93 Correct 125 ms 157516 KB Output is correct
94 Correct 128 ms 157556 KB Output is correct
95 Correct 119 ms 157512 KB Output is correct
96 Runtime error 498 ms 1048576 KB Execution killed with signal 9
97 Halted 0 ms 0 KB -