QOJ.ac

QOJ

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
#61413#4230. Leaderboard Effect2pal1rak#AC ✓2354ms276228kbC++141.8kb2022-11-12 22:17:102022-11-12 22:17:11

Judging History

你现在查看的是最新测评结果

  • [2023-08-10 23:21:45]
  • System Update: QOJ starts to keep a history of the judgings of all the submissions.
  • [2022-11-12 22:17:11]
  • 评测
  • 测评结果:AC
  • 用时:2354ms
  • 内存:276228kb
  • [2022-11-12 22:17:10]
  • 提交

answer

#include <bits/stdc++.h>

using namespace std;


const int MaxTime = 302, MaxMask = (1<<17) + 2;

struct problem
{
    int read, code;
    double prob;
} a[20];


int n, lim_time;

double solved[MaxTime][20];
double dp[MaxTime][MaxMask];

inline void go_to(double &x, double y)
{
    x += y;
}


int main()
{
  //  freopen("input", "r", stdin);
    cin.sync_with_stdio(false); cin.tie(0);


    cout << setprecision(6) << fixed;

    cin >> n >> lim_time;

    int unread, t, p;

    for(int i=0; i<n; ++i)
        cin >> a[i].read >> a[i].code >> a[i].prob;

    dp[0][(1<<n) - 1] = 1; // all unread

    for(t=0; t<=lim_time; ++t)
    {
        if(t)
        {
            for(p=0; p<n; ++p)
                solved[t][p] += solved[t-1][p];
        }

        for(unread = 0; unread < (1<<n); ++unread)
        {
            double total_solved = 0;
            for(p = 0; p < n; ++p)
                if(unread & (1<<p))
                    total_solved += solved[t][p];

            for(p = 0; p < n; ++p)
                if(unread & (1<<p))
                {
                    double choose_p;

                    if(total_solved > 0)
                        choose_p = solved[t][p] / total_solved;
                    else choose_p = (double) 1 / __builtin_popcount(unread);

                    go_to(dp[t+a[p].read][unread ^ (1<<p)],           dp[t][unread] * choose_p * (1 - a[p].prob));

                    go_to(dp[t+a[p].read+a[p].code][unread ^ (1<<p)], dp[t][unread] * choose_p * a[p].prob);

                    go_to(solved[t+a[p].read+a[p].code][p],           dp[t][unread] * choose_p * a[p].prob);
                }
        }
    }

    for(p=0; p<n; ++p)
        cout << solved[lim_time][p] << '\n';


    return 0;
}

詳細信息

Test #1:

score: 100
Accepted
time: 3ms
memory: 3764kb

input:

4 42
10 10 0.75
10 10 0.75
10 12 1
10 12 1

output:

0.456250
0.456250
0.296875
0.296875

result:

ok 4 numbers

Test #2:

score: 0
Accepted
time: 1ms
memory: 3944kb

input:

4 42
10 12 0.75
10 12 0.75
10 10 1
10 10 1

output:

0.203125
0.203125
0.683239
0.683239

result:

ok 4 numbers

Test #3:

score: 0
Accepted
time: 4ms
memory: 4448kb

input:

5 100
40 60 0.6
40 61 1
10 40 0.3
10 40 0.4
10 40 0.5

output:

0.120000
0.000000
0.112629
0.159740
0.206444

result:

ok 5 numbers

Test #4:

score: 0
Accepted
time: 415ms
memory: 36444kb

input:

15 100
4 14 0.954205412740471
5 11 0.264054003774017
1 7 0.521673865442381
3 12 0.6756938980261
1 15 0.980129050876819
2 12 0.836645892885326
10 3 0.959863273940343
13 6 0.230786407526669
3 13 0.0575791282076707
6 5 0.706328060881614
1 15 0.662404274712202
2 13 0.715327416279894
11 2 0.9275847467499...

output:

0.546688
0.055519
0.393621
0.350875
0.667424
0.571223
0.799952
0.040005
0.006145
0.551256
0.299989
0.391261
0.760475
0.518805
0.071749

result:

ok 15 numbers

Test #5:

score: 0
Accepted
time: 826ms
memory: 63716kb

input:

16 100
1 8 0.203833126785817
1 10 0.551151943064124
1 12 0.996220861387656
1 7 0.198656409543208
2 2 0.467994369421028
8 3 0.201277956430612
1 10 0.33397726300295
1 8 0.223430703554389
3 12 0.715363922664928
9 6 0.883743052774488
1 9 0.51636293824285
2 7 0.00210327442137626
6 11 0.978989778915285
1 ...

output:

0.085880
0.425293
0.937411
0.092225
0.433996
0.075523
0.173431
0.101753
0.534933
0.765139
0.408570
0.000235
0.837491
0.150633
0.889199
0.776051

result:

ok 16 numbers

Test #6:

score: 0
Accepted
time: 929ms
memory: 88880kb

input:

16 100
36 30 0.246284470931766
40 2 0.00729886464249319
34 9 0.969806174971755
2 27 0.700168809611093
2 49 0.00964738878291982
11 13 0.843818712396597
23 15 0.015695164745825
2 11 0.860911871987035
8 39 0.759047449661107
33 17 0.156016479857797
5 40 0.704380590007194
2 36 0.0742940485679995
13 17 0....

output:

0.022417
0.000672
0.188134
0.267402
0.000806
0.481207
0.001509
0.728901
0.093530
0.014416
0.100479
0.007905
0.016108
0.011464
0.193442
0.108541

result:

ok 16 numbers

Test #7:

score: 0
Accepted
time: 1ms
memory: 4196kb

input:

2 100
44 23 0.344489870631275
18 13 0.617983603136949

output:

0.344490
0.617984

result:

ok 2 numbers

Test #8:

score: 0
Accepted
time: 1917ms
memory: 125024kb

input:

17 100
1 6 0.618966248907732
1 6 0.126915204708293
4 7 0.35153234988752
2 3 0.0368548187261588
1 5 0.299571483949073
1 12 0.944530094804986
3 12 0.249408160616937
1 11 0.91317090384857
5 8 0.377638681694897
4 12 0.639080155811651
1 4 0.809300766237897
8 5 0.812731204986182
1 10 0.480107932016118
7 1...

output:

0.609721
0.066416
0.275965
0.011632
0.265397
0.927619
0.110452
0.900023
0.272455
0.544419
0.807557
0.787438
0.424197
0.453290
0.071089
0.023051
0.276631

result:

ok 17 numbers

Test #9:

score: 0
Accepted
time: 1605ms
memory: 109616kb

input:

17 85
8 6 0.9977
1 4 0.9459
5 9 0.0733
2 9 0.759
9 6 0.921
5 6 0.2015
2 8 0.9407
8 10 0.7806
5 3 0.864
4 4 0.0777
9 3 0.9518
8 2 0.8221
10 9 0.2471
4 8 0.4679
7 6 0.603
3 2 0.4067
5 5 0.8879

output:

0.586725
0.912953
0.006581
0.421056
0.460750
0.031503
0.749830
0.246898
0.741616
0.008717
0.634338
0.599408
0.030966
0.141902
0.226289
0.285203
0.681216

result:

ok 17 numbers

Test #10:

score: 0
Accepted
time: 1529ms
memory: 108212kb

input:

17 85
9 7 0.0563
7 7 0.1979
9 3 0.7689
1 6 0.0291
7 7 0.9631
5 8 0.847
8 6 0.6752
2 9 0.0396
4 2 0.6747
8 3 0.1071
8 4 0.5134
9 7 0.7491
6 8 0.3134
3 1 0.8355
4 5 0.5561
1 10 0.372
9 9 0.4515

output:

0.005494
0.037238
0.629437
0.003543
0.781024
0.677158
0.410806
0.003744
0.642441
0.016553
0.303805
0.423832
0.086198
0.826971
0.461285
0.163761
0.128595

result:

ok 17 numbers

Test #11:

score: 0
Accepted
time: 1520ms
memory: 107108kb

input:

17 85
1 7 0.1344
5 8 0.99
8 3 0.437
4 9 0.1375
3 2 0.8208
1 8 0.5922
10 6 0.655
8 5 0.8043
2 5 0.8447
5 10 0.3305
9 3 0.725
1 8 0.0394
6 5 0.8091
8 7 0.6427
9 6 0.7282
4 7 0.1024
1 6 0.4222

output:

0.027115
0.792437
0.206197
0.020443
0.797474
0.426879
0.285204
0.551883
0.792822
0.081620
0.498293
0.004122
0.643011
0.299258
0.386625
0.014475
0.270608

result:

ok 17 numbers

Test #12:

score: 0
Accepted
time: 1609ms
memory: 108732kb

input:

17 85
10 2 0.6556
3 1 0.7738
1 8 0.9047
3 10 0.9973
10 4 0.5266
8 1 0.4384
5 3 0.3559
3 6 0.7999
8 6 0.9665
3 4 0.142
7 5 0.0319
6 3 0.4056
6 10 0.0477
8 10 0.1334
5 8 0.8102
8 8 0.6
7 5 0.318

output:

0.397289
0.761422
0.831520
0.780828
0.196245
0.254090
0.190705
0.703616
0.680281
0.035553
0.002595
0.211204
0.003955
0.014426
0.529030
0.218261
0.087684

result:

ok 17 numbers

Test #13:

score: 0
Accepted
time: 2354ms
memory: 272616kb

input:

17 100
10 41 0.986344070444954
38 40 0.13596976314146
23 65 0.589188420670698
23 41 0.862487981086339
66 62 0.756039635351495
84 82 0.466671597793749
17 74 0.451825236037525
97 49 0.785964886639839
76 26 0.432545432217108
10 33 0.495053202758143
35 72 0.437261903429889
55 95 0.333190022475783
83 56 ...

output:

0.071558
0.008532
0.035782
0.057417
0.000000
0.000000
0.026578
0.000000
0.000000
0.076178
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

result:

ok 17 numbers

Test #14:

score: 0
Accepted
time: 2134ms
memory: 276228kb

input:

17 100
52 66 0.608312285077897
77 36 0.182402129968963
43 16 0.906840075497175
75 100 0.508033408075313
25 60 0.688919263266595
84 59 0.17045120790047
75 9 0.831462171228754
16 69 0.185113485186001
71 54 0.372346884200038
90 65 0.235248490382517
62 50 0.917089563798644
47 45 0.717838729472597
56 51 ...

output:

0.000000
0.000000
0.060283
0.000000
0.041554
0.000000
0.052642
0.011165
0.000000
0.000000
0.000000
0.042661
0.000000
0.045098
0.000000
0.039767
0.056075

result:

ok 17 numbers

Test #15:

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

input:

5 40
10 8 0.9
10 9 0.9
10 10 0.9
10 11 0.9
10 12 0.9

output:

0.538500
0.376500
0.241500
0.238500
0.238500

result:

ok 5 numbers