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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#197020#3994. Easy JumpJWRuixiAC ✓1ms4932kbC++203.7kb2023-10-02 08:07:252023-10-02 08:07:25

Judging History

你现在查看的是最新测评结果

  • [2023-10-02 08:07:25]
  • 评测
  • 测评结果：AC
  • 用时：1ms
  • 内存：4932kb
查看
  • [2023-10-02 08:07:25]
  • 提交

answer

#include <bits/stdc++.h>
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2")
// #define ATC
#define LL long long
#define eb emplace_back
using namespace std;

#ifdef ATC
#include <atcoder/all>
using namespace atcoder;
#endif

mt19937 rnd(chrono::steady_clock::now().time_since_epoch().count());
const int mod = 998244353;

namespace mystd {
    typedef pair<int, int> pii;
#define fi first
#define se second
#define MP make_pair
    template<typename T, typename _T>
    inline void inc (T &x, const _T &y) { x += y; (x >= mod) && (x -= mod); }
    template<typename T, typename _T>
    inline void dec (T &x, const _T &y) { x -= y; (x < 0) && (x += mod); }
    template<typename T, typename _T>
    inline void cmax (T &x, const _T &y) { (x < y) && (x = y); }
    template<typename T, typename _T>
    inline void cmin (T &x, const _T &y) { (x > y) && (x = y); }
    template<typename T>
    inline void write (const T &Arg) { cout << Arg; }
    template<typename T, typename ..._T>
    inline void write (const T &Arg, const _T &...Args) { cout << Arg, write(Args...); }
    template<typename T>
    inline void read (T &Arg) { cin >> Arg; }
    template<typename T, typename ..._T>
    inline void read (T &Arg, _T &...Args) { cin >> Arg, read(Args...); }
}

using namespace mystd;

const int N = 1005, M = 12;
const double INF = 1e18;
int n, H, S, T1, T2, m;
double f[N][M][M], t[N], p[N];
bool hl[N];

namespace sub1 {
    double g[N][M];
    inline void slv () {
        for (int i = n; i; i--) {
            for (int j = 1; j < H; j++) {
                if (j == 1) {
                    g[i][j] = (p[i] * g[i + 1][j] + (1 - p[i]) * T2 + 1) / p[i];
                } else {
                    g[i][j] = (p[i] * g[i + 1][j] + (1 - p[i]) * g[i][j - 1]) + 1;
                }
            }
        }
        cout << g[1][H - 1];
        exit(0);
    }
}

int main() {
    ios::sync_with_stdio(0), cin.tie(0), cout.tie(0);
    cout << fixed << setprecision(8);
    cin >> n >> H >> S;
    for (int i = 1; i <= n; i++) cin >> p[i], p[i] /= 100;
    cin >> m;
    for (int i = 1, x; i <= m; i++) {
        cin >> x;
        hl[x] = 1;
    }
    cin >> T1 >> T2;
    if (T1 >= T2) sub1::slv();
    for (int i = n; i; i--) {
        if (!hl[i] || S == 0) {
            for (int j = 1; j < H; j++) {
                for (int k = 0; k <= S; k++) {
                    if (j == 1) {
                        if (k > 0) {
                            f[i][j][k] = (p[i] * f[i + 1][j][k] + (1 - p[i]) * (f[i][j][k - 1] + T1)) + 1;
                        } else {
                            f[i][j][k] = (p[i] * f[i + 1][j][k] + (1 - p[i]) * T2 + 1) / p[i];
                        }
                    } else {
                        f[i][j][k] = (p[i] * f[i + 1][j][k] + (1 - p[i]) * f[i][j - 1][k]) + 1;
                    }
                }
            }
        } else {
            for (int j = 1; j < H; j++) {
                for (int k = 0; k <= S; k++) {
                    f[i][j][k] = INF;
                }
            }
            for (int B = 1; B < H; B++) {
                t[B] = (p[i] * f[i + 1][B][S] + (1 - p[i]) * T1 + 1) / p[i];
                for (int j = B - 1; j; j--) 
                    t[j] = t[j + 1] + T1;
                for (int j = B + 1; j < H; j++)
                    t[j] = (p[i] * f[i + 1][j][S] + (1 - p[i]) * t[j - 1]) + 1;
                for (int j = 1; j < H; j++)
                    f[i][j][S] = min(f[i][j][S], t[j]);
            }
            for (int j = 1; j < H; j++) 
                for (int k = S - 1; ~k; k--)
                    f[i][j][k] = f[i][j][k + 1];
        }
    }
    cout << f[1][H - 1][S];
}
// I love WHQ!
源文件, 语言: C++20

詳細信息

Test #1:

score: 100
Accepted
time: 1ms
memory: 3820kb

input:

1 2 0
50
0
1 2

output:

4.00000000

result:

ok found '4.0000000', expected '4.0000000', error '0.0000000'

Test #2:

score: 0
Accepted
time: 1ms
memory: 3824kb

input:

2 3 1
50 50
1 1
1 3

output:

6.00000000

result:

ok found '6.0000000', expected '6.0000000', error '0.0000000'

Test #3:

score: 0
Accepted
time: 0ms
memory: 3784kb

input:

1 6 4
75
0
64 6

output:

1.34114583

result:

ok found '1.3411458', expected '1.3411458', error '0.0000000'

Test #4:

score: 0
Accepted
time: 0ms
memory: 3708kb

input:

1 5 1
61
1 1
15 43

output:

2.20822320

result:

ok found '2.2082232', expected '2.2082232', error '0.0000000'

Test #5:

score: 0
Accepted
time: 0ms
memory: 3764kb

input:

10 9 3
12 65 76 33 17 20 89 16 4 63
3 2 4 8
73 21

output:

942.41484201

result:

ok found '942.4148420', expected '942.4148420', error '0.0000000'

Test #6:

score: 0
Accepted
time: 0ms
memory: 3816kb

input:

10 6 0
26 6 29 76 92 46 8 4 91 44
1 4
17 6

output:

401.86686298

result:

ok found '401.8668630', expected '401.8668630', error '0.0000000'

Test #7:

score: 0
Accepted
time: 0ms
memory: 3912kb

input:

100 3 5
85 59 20 75 58 42 79 95 22 15 95 81 69 73 45 42 99 93 58 8 18 34 88 14 23 37 87 16 96 17 40 58 32 26 93 9 37 15 68 49 99 73 48 79 16 27 52 4 66 53 48 55 27 56 52 66 25 30 34 11 97 20 38 30 4 78 17 98 4 23 30 71 87 94 89 71 45 92 72 24 90 24 78 48 62 82 30 30 27 55 64 66 41 72 53 97 59 38 80 ...

output:

13395.85506251

result:

ok found '13395.8550625', expected '13395.8550625', error '0.0000000'

Test #8:

score: 0
Accepted
time: 0ms
memory: 3836kb

input:

100 6 5
71 18 59 37 83 16 53 4 42 38 52 89 95 42 39 17 27 84 53 45 36 50 7 63 23 69 34 74 68 13 65 81 48 77 36 87 57 22 47 70 50 54 16 63 32 96 70 30 25 97 35 33 59 76 40 54 68 60 19 34 73 8 71 77 97 39 27 37 93 19 71 94 61 33 28 80 86 79 16 2 42 89 19 43 97 52 95 69 53 67 37 51 4 53 7 36 82 67 80 2...

output:

15012.98330318

result:

ok found '15012.9833032', expected '15012.9833032', error '0.0000000'

Test #9:

score: 0
Accepted
time: 1ms
memory: 3796kb

input:

100 4 1
15 95 82 67 93 57 92 60 48 53 26 94 10 24 88 48 48 28 9 62 55 6 8 39 25 87 14 10 50 19 24 89 11 98 3 30 16 22 43 80 26 49 47 59 38 70 79 94 2 72 78 28 83 34 30 52 45 83 9 42 63 46 83 95 49 21 38 48 87 65 45 7 91 9 5 32 57 21 39 34 71 69 87 44 12 38 72 99 55 23 21 42 87 91 85 93 47 28 25 96
8...

output:

22457.80115098

result:

ok found '22457.8011510', expected '22457.8011510', error '0.0000000'

Test #10:

score: 0
Accepted
time: 0ms
memory: 3836kb

input:

100 6 4
52 32 81 87 70 91 23 65 91 47 84 60 76 18 31 34 17 85 31 68 80 35 60 86 63 42 76 94 90 25 76 1 38 87 68 19 43 66 7 12 82 7 58 93 66 3 92 92 64 82 10 91 55 27 41 45 44 59 91 30 86 69 77 36 76 49 46 91 14 14 58 51 4 91 23 56 72 86 65 78 91 21 80 77 75 13 36 99 34 61 56 79 5 32 49 37 26 93 70 5...

output:

4276.80439687

result:

ok found '4276.8043969', expected '4276.8043969', error '0.0000000'

Test #11:

score: 0
Accepted
time: 0ms
memory: 3832kb

input:

100 3 5
18 54 94 38 94 89 65 11 6 7 20 36 99 17 55 98 14 74 78 32 95 67 20 21 24 67 50 96 72 42 22 32 14 82 44 81 37 94 11 22 86 33 41 36 9 41 90 66 27 13 7 93 89 84 1 4 1 75 33 92 55 11 19 71 40 45 40 9 32 81 98 58 70 23 30 49 24 98 15 41 35 51 3 6 83 54 14 28 81 64 71 86 33 45 51 61 14 18 19 12
10...

output:

31638.97643867

result:

ok found '31638.9764387', expected '31638.9764387', error '0.0000000'

Test #12:

score: 0
Accepted
time: 1ms
memory: 3868kb

input:

1000 8 3
67 7 89 71 35 18 39 60 12 76 58 9 78 97 89 71 55 25 3 12 36 52 55 20 51 25 25 1 30 49 23 63 54 52 17 81 89 64 47 92 20 98 96 12 53 21 85 75 55 5 25 20 63 43 28 65 11 97 42 64 23 91 40 87 61 98 36 48 24 40 6 20 17 7 28 75 89 52 22 78 96 97 62 85 54 73 10 37 93 49 14 72 27 71 91 77 38 84 70 3...

output:

262807.78473884

result:

ok found '262807.7847388', expected '262807.7847388', error '0.0000000'

Test #13:

score: 0
Accepted
time: 1ms
memory: 4908kb

input:

1000 6 3
73 3 44 64 34 50 44 97 16 2 63 94 50 41 12 70 14 12 86 83 73 36 92 47 66 54 68 52 17 92 38 5 22 47 96 67 3 21 9 35 45 77 51 80 54 12 13 95 59 41 53 49 77 23 40 19 60 74 99 93 51 51 2 22 6 46 34 29 28 68 92 20 37 93 88 69 7 30 62 79 55 30 56 36 62 89 70 47 28 78 28 15 59 43 63 59 29 67 45 86...

output:

452525.43536488

result:

ok found '452525.4353649', expected '452525.4353649', error '0.0000000'

Test #14:

score: 0
Accepted
time: 1ms
memory: 4864kb

input:

1000 6 3
25 71 28 1 12 61 61 64 75 77 24 70 48 17 93 15 78 58 37 83 37 89 26 83 18 53 57 6 83 14 83 95 63 19 44 87 75 52 68 99 77 22 41 77 91 46 52 55 30 83 8 46 46 95 41 83 12 84 56 68 52 88 32 15 66 89 9 4 24 71 45 79 27 79 81 73 77 83 1 12 14 86 15 17 18 51 76 54 51 50 86 22 46 97 27 7 15 68 8 3 ...

output:

305463.19472354

result:

ok found '305463.1947235', expected '305463.1947235', error '0.0000000'

Test #15:

score: 0
Accepted
time: 1ms
memory: 3872kb

input:

1000 6 0
9 73 54 66 24 28 96 71 75 93 67 82 2 69 25 88 22 25 62 26 91 21 28 73 91 11 36 89 40 53 6 39 20 84 52 30 19 10 29 40 16 40 33 87 41 93 51 2 83 44 86 96 55 68 2 62 43 52 90 89 54 93 72 8 25 55 29 24 24 31 29 12 55 3 35 71 77 14 11 47 3 58 66 25 48 44 98 28 24 46 39 74 68 88 69 68 99 23 66 15...

output:

198576.70345348

result:

ok found '198576.7034535', expected '198576.7034535', error '0.0000000'

Test #16:

score: 0
Accepted
time: 1ms
memory: 3876kb

input:

1000 5 3
77 43 54 22 15 44 57 52 99 53 3 8 56 29 95 99 33 34 8 69 6 44 41 74 51 88 77 39 66 45 2 52 37 1 91 90 68 64 64 71 69 14 42 20 41 60 67 53 96 64 42 30 27 23 44 73 64 59 66 41 47 4 11 36 67 43 22 18 37 48 61 88 44 59 77 70 52 65 78 5 45 40 22 94 19 12 45 2 66 37 45 95 67 94 38 55 11 63 77 72 ...

output:

124894.63101471

result:

ok found '124894.6310147', expected '124894.6310147', error '0.0000000'

Test #17:

score: 0
Accepted
time: 1ms
memory: 4776kb

input:

1000 5 0
18 21 52 20 8 18 14 27 59 45 11 96 94 57 16 19 40 43 83 13 33 29 72 5 64 53 49 79 88 6 66 83 28 39 47 57 84 62 88 77 48 76 27 31 36 42 3 47 33 55 71 66 96 60 2 13 47 33 44 36 50 50 81 37 98 53 13 9 40 12 97 83 65 64 25 68 15 48 31 68 89 72 40 80 13 57 80 73 54 96 56 55 73 44 44 64 86 7 7 6 ...

output:

316712.13321631

result:

ok found '316712.1332163', expected '316712.1332163', error '0.0000000'

Test #18:

score: 0
Accepted
time: 1ms
memory: 3828kb

input:

1000 7 3
4 82 64 83 71 66 78 27 3 11 95 6 56 74 18 14 91 6 31 78 61 69 44 13 98 47 12 54 11 2 29 56 17 18 73 11 58 9 58 29 3 60 8 12 99 97 24 77 85 95 14 22 31 2 86 25 3 67 61 46 40 80 17 57 90 28 29 79 81 16 52 4 15 2 18 88 36 38 82 75 11 31 6 95 84 99 35 56 21 63 85 82 9 16 30 33 46 42 52 57 72 45...

output:

187286.41750200

result:

ok found '187286.4175020', expected '187286.4175020', error '0.0000000'

Test #19:

score: 0
Accepted
time: 0ms
memory: 4908kb

input:

1000 5 6
42 60 83 6 82 4 22 82 9 19 69 7 66 56 67 49 5 49 79 3 76 22 45 81 5 73 91 81 88 96 99 64 74 35 36 53 9 12 49 39 82 51 43 8 6 83 33 39 66 65 61 21 51 60 84 19 76 86 43 58 26 15 30 78 42 10 32 86 79 73 19 16 45 73 87 45 3 79 10 8 32 7 74 92 97 88 20 78 39 23 69 77 92 58 5 90 3 7 99 38 61 45 8...

output:

191657.00561466

result:

ok found '191657.0056147', expected '191657.0056147', error '0.0000000'

Test #20:

score: 0
Accepted
time: 1ms
memory: 4888kb

input:

1000 8 6
32 27 28 71 8 77 5 94 21 42 29 15 88 21 61 25 32 39 74 41 94 34 63 38 5 6 38 44 60 1 17 83 98 90 77 40 33 16 25 59 37 36 98 95 23 45 59 68 21 11 48 3 91 83 68 11 24 29 31 81 97 3 63 18 36 66 50 25 65 57 63 43 19 12 34 50 40 66 57 85 87 72 15 86 33 51 73 22 53 27 38 61 56 35 58 25 26 23 92 5...

output:

334990.86658020

result:

ok found '334990.8665802', expected '334990.8665802', error '0.0000000'

Test #21:

score: 0
Accepted
time: 1ms
memory: 3924kb

input:

950 2 6
44 25 3 27 5 97 18 49 31 54 89 53 32 27 87 98 95 56 49 35 80 94 91 16 96 25 46 60 36 27 38 40 62 18 3 68 51 45 53 87 4 18 45 26 66 73 38 37 45 92 10 39 33 72 68 18 98 10 26 80 97 2 66 56 6 67 10 70 73 43 1 8 7 31 34 2 26 26 75 22 32 13 59 30 66 67 4 33 16 97 85 16 12 37 24 54 19 11 35 70 83 ...

output:

156875.06228934

result:

ok found '156875.0622893', expected '156875.0622893', error '0.0000000'

Test #22:

score: 0
Accepted
time: 1ms
memory: 4864kb

input:

1000 6 5
96 33 90 86 69 10 50 29 48 38 47 24 8 29 53 98 94 29 57 38 59 13 61 10 94 2 67 79 96 12 7 48 40 41 66 81 85 39 86 19 59 51 46 73 74 29 80 83 41 64 72 6 14 7 96 53 32 25 82 39 54 20 19 23 90 64 67 70 28 20 19 97 84 36 41 71 44 3 30 93 84 58 35 80 42 25 75 3 89 15 11 68 98 66 41 82 24 24 26 9...

output:

165921.18616088

result:

ok found '165921.1861609', expected '165921.1861609', error '0.0000000'

Test #23:

score: 0
Accepted
time: 1ms
memory: 3816kb

input:

999 4 6
65 60 6 32 43 73 62 90 23 99 80 90 83 31 27 60 43 65 86 19 50 38 87 47 41 87 88 21 16 4 25 94 91 74 37 23 96 99 83 87 82 29 36 70 76 55 52 2 86 79 36 86 72 61 61 47 77 75 70 54 22 2 80 96 75 95 15 12 5 75 70 78 12 86 13 64 99 83 38 92 88 27 30 43 44 12 52 83 20 70 18 99 25 31 46 32 83 25 77 ...

output:

33450.91502647

result:

ok found '33450.9150265', expected '33450.9150265', error '0.0000000'

Test #24:

score: 0
Accepted
time: 1ms
memory: 4912kb

input:

990 3 2
12 27 24 8 62 86 67 17 23 15 25 92 28 85 27 43 67 82 18 26 78 30 24 79 34 49 59 23 69 33 2 64 30 90 33 12 5 2 64 29 7 75 50 97 43 57 24 59 14 14 40 30 22 66 42 59 97 69 62 26 77 36 80 91 81 47 5 7 84 5 41 60 25 68 86 41 66 95 1 55 65 75 96 73 65 21 33 22 9 61 78 36 73 88 95 49 13 4 40 61 50 ...

output:

384908.17477757

result:

ok found '384908.1747776', expected '384908.1747776', error '0.0000000'

Test #25:

score: 0
Accepted
time: 0ms
memory: 3776kb

input:

550 3 0
21 55 47 13 16 92 54 15 75 95 81 26 19 60 33 86 12 69 87 52 99 65 74 46 78 22 59 38 62 62 90 47 14 19 80 18 56 63 56 43 1 14 42 13 88 29 50 76 36 96 69 39 90 18 38 22 43 8 93 1 25 20 92 51 73 67 61 75 80 66 9 30 81 98 76 58 10 70 55 34 22 9 87 84 86 60 87 90 99 84 16 17 41 29 99 36 73 62 93 ...

output:

128698.59496293

result:

ok found '128698.5949629', expected '128698.5949629', error '0.0000000'

Test #26:

score: 0
Accepted
time: 1ms
memory: 4884kb

input:

1000 6 3
73 3 44 64 34 50 44 97 16 2 63 94 50 41 12 70 14 12 86 83 73 36 92 47 66 54 68 52 17 92 38 5 22 47 96 67 3 21 9 35 45 77 51 80 54 12 13 95 59 41 53 49 77 23 40 19 60 74 99 93 51 51 2 22 6 46 34 29 28 68 92 20 37 93 88 69 7 30 62 79 55 30 56 36 62 89 70 47 28 78 28 15 59 43 63 59 29 67 45 86...

output:

377298.86280407

result:

ok found '377298.8628041', expected '377298.8628041', error '0.0000000'

Test #27:

score: 0
Accepted
time: 1ms
memory: 4932kb

input:

1000 6 3
25 71 28 1 12 61 61 64 75 77 24 70 48 17 93 15 78 58 37 83 37 89 26 83 18 53 57 6 83 14 83 95 63 19 44 87 75 52 68 99 77 22 41 77 91 46 52 55 30 83 8 46 46 95 41 83 12 84 56 68 52 88 32 15 66 89 9 4 24 71 45 79 27 79 81 73 77 83 1 12 14 86 15 17 18 51 76 54 51 50 86 22 46 97 27 7 15 68 8 3 ...

output:

396515.81521995

result:

ok found '396515.8152199', expected '396515.8152199', error '0.0000000'

Test #28:

score: 0
Accepted
time: 1ms
memory: 4764kb

input:

1000 2 0
29 25 70 52 25 81 1 9 2 60 84 13 65 12 45 36 42 77 47 82 17 99 50 51 49 7 45 69 52 51 60 60 95 27 54 38 35 60 52 85 49 4 73 8 51 43 76 11 78 39 85 25 47 84 42 71 42 78 52 56 29 49 28 69 18 13 25 29 30 90 36 8 74 31 51 23 15 11 93 46 79 19 89 91 41 88 30 24 76 93 29 81 51 33 17 12 72 24 26 5...

output:

313346.07397821

result:

ok found '313346.0739782', expected '313346.0739782', error '0.0000000'

Test #29:

score: 0
Accepted
time: 1ms
memory: 4900kb

input:

1000 2 3
93 41 4 36 96 41 61 43 19 34 51 11 79 39 13 85 18 92 27 20 87 77 58 61 3 91 66 17 78 98 58 67 41 61 7 96 74 12 37 49 62 42 63 8 13 66 42 8 48 40 5 12 67 22 78 13 46 6 41 74 16 56 50 1 92 91 39 6 72 16 97 28 76 40 60 97 77 25 30 45 62 85 42 89 20 70 1 5 48 74 57 67 72 96 79 60 68 62 52 23 49...

output:

223189.95550690

result:

ok found '223189.9555069', expected '223189.9555069', error '0.0000000'
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