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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
#825474#9778. Brotatoucup-team1134#WA 1210ms198004kbC++233.0kb2024-12-21 19:38:032024-12-21 19:38:03

Judging History

This is the latest submission verdict.

  • [2024-12-21 19:38:03]
  • Judged
  • Verdict: WA
  • Time: 1210ms
  • Memory: 198004kb
  • [2024-12-21 19:38:03]
  • Submitted

answer

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
template<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return true; } return false; }
template<class T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return true; } return false; }
#define vi vector<int>
#define vl vector<ll>
#define vii vector<pair<int,int>>
#define vll vector<pair<ll,ll>>
#define vvi vector<vector<int>>
#define vvl vector<vector<ll>>
#define vvii vector<vector<pair<int,int>>>
#define vvll vector<vector<pair<ll,ll>>>
#define vst vector<string>
#define pii pair<int,int>
#define pll pair<ll,ll>
#define pb push_back
#define all(x) (x).begin(),(x).end()
#define mkunique(x) sort(all(x));(x).erase(unique(all(x)),(x).end())
#define fi first
#define se second
#define mp make_pair
#define si(x) int(x.size())
const int mod=998244353,MAX=300005,INF=15<<26;

#define ld long double
ld dp[MAX][123];

int main(){
    
    std::ifstream in("text.txt");
    std::cin.rdbuf(in.rdbuf());
    cin.tie(0);
    ios::sync_with_stdio(false);
    
    ll N,K;
    ld P;cin>>N>>K>>P;
    ll pp=roundl(P*10000),qq=10000-pp,rr=10000;
    chmin(K,120LL);
    
    for(int j=0;j<=K;j++) dp[N][j]=0;
    dp[0][0]=0;
    for(int i=N-1;i>=0;i--){
        dp[0][0]+=1.0l;
        dp[0][0]/=qq;
        dp[0][0]*=rr;
    }
    for(int i=N-1;i>=1;i--){
        dp[i][0]=(dp[i+1][0]*qq+dp[0][0]*pp+rr)/rr;
    }
    //cout<<fixed<<setprecision(25)<<dp[0][0]<<endl;
    
    for(int j=1;j<=K;j++){
        for(int i=N-1;i>=0;i--){
            dp[i][j]=(ld)(dp[i+1][j]*qq+dp[i][j-1]*pp+rr)/rr;
        }
        ld l=0,r=1e14;
        for(int q=0;q<80;q++){
            ld m=(l+r)/2;
            int L=0,R=N;
            while(R-L>1){
                int M=(L+R)/2;
                if(dp[M][j-1]<m) R=M;
                else L=M;
            }
            ld s=dp[R][j];
            for(int i=L;i>=0;i--){
                s=(ld)(s*qq+m*pp+rr)/rr;
            }
            if(s>m) l=m;
            else r=m;
        }
        /*
        int L=0,R=N;
        while(R-L>1){
            int M=(L+R)/2;
        }
        ld l=0,r=1e14;
        for(int q=0;q<80;q++){
            ld m=(l+r)/2;
            int L=0,R=N;
            while(R-L>1){
                int M=(L+R)/2;
                if(dp[M][j-1]<m) R=M;
                else L=M;
            }
            for(int i=R;i>=1;i--){
                dp[i][j]=(ld)(dp[i+1][j]*qq+min(dp[i][j-1],m)*pp+rr)/rr;
            }
            ld z=(dp[1][j]*qq+m*pp+rr)/rr;
            //for(int i=0;i<=N;i++) cout<<m<<" "<<i<<" "<<dp[i][j]<<endl;
            if(z>m) l=m;
            else r=m;
        }
         */
        ld m=(l+r)/2;
        for(int i=N-1;i>=1;i--){
            dp[i][j]=(ld)(dp[i+1][j]*qq+min(dp[i][j-1],m)*pp+rr)/rr;
        }
        dp[0][j]=(l+r)/2;
        //for(int i=0;i<=N;i++) cout<<dp[i][j]<<endl;
        //cout<<fixed<<setprecision(25)<<(l+r)/2<<endl;
    }
    
    cout<<fixed<<setprecision(25)<<dp[0][K]<<endl;
}



详细

Test #1:

score: 100
Accepted
time: 1ms
memory: 3948kb

input:

5 0
0.5

output:

61.9999999999999999965305530

result:

ok found '62.000000000', expected '62.000000000', error '0.000000000'

Test #2:

score: 0
Accepted
time: 0ms
memory: 3948kb

input:

5 1
0.5

output:

46.9999999999689218217746589

result:

ok found '47.000000000', expected '47.000000000', error '0.000000000'

Test #3:

score: 0
Accepted
time: 2ms
memory: 23648kb

input:

10000 0
0.002

output:

247489700298.2537139505147933959960938

result:

ok found '247489700298.253723145', expected '247489700298.253692627', error '0.000000000'

Test #4:

score: 0
Accepted
time: 490ms
memory: 197780kb

input:

100000 10
0.0002

output:

38767507152.6938474178314208984375000

result:

ok found '38767507152.693847656', expected '38767507133.232215881', error '0.000000001'

Test #5:

score: 0
Accepted
time: 7ms
memory: 196244kb

input:

100000 0
0.0002

output:

2430683127170.3808789253234863281250000

result:

ok found '2430683127170.380859375', expected '2430683127170.376953125', error '0.000000000'

Test #6:

score: 0
Accepted
time: 840ms
memory: 197356kb

input:

100000 20
0.0002

output:

801073272.5942339263274334371089935

result:

ok found '801073272.594233871', expected '801073272.231680870', error '0.000000000'

Test #7:

score: 0
Accepted
time: 1210ms
memory: 196596kb

input:

100000 40
0.0002

output:

478148.7185899666004615937708877

result:

ok found '478148.718589967', expected '478148.718426307', error '0.000000000'

Test #8:

score: 0
Accepted
time: 161ms
memory: 198004kb

input:

99995 4
0.0001

output:

38976542.8681943342380691319704056

result:

ok found '38976542.868194334', expected '38976542.868175834', error '0.000000000'

Test #9:

score: 0
Accepted
time: 338ms
memory: 197188kb

input:

99995 10
0.0001

output:

3549184.5977119178805878618732095

result:

ok found '3549184.597711918', expected '3549184.597712017', error '0.000000000'

Test #10:

score: 0
Accepted
time: 447ms
memory: 196516kb

input:

99995 16
0.0001

output:

399507.4705567460488282449659891

result:

ok found '399507.470556746', expected '399507.470556742', error '0.000000000'

Test #11:

score: 0
Accepted
time: 289ms
memory: 196812kb

input:

99990 8
0.0001

output:

7773463.9479301282249252835754305

result:

ok found '7773463.947930128', expected '7773463.947930722', error '0.000000000'

Test #12:

score: 0
Accepted
time: 343ms
memory: 197252kb

input:

99990 10
0.0001

output:

3547428.9454721956140019756276160

result:

ok found '3547428.945472196', expected '3547428.945472297', error '0.000000000'

Test #13:

score: 0
Accepted
time: 385ms
memory: 197260kb

input:

99990 12
0.0001

output:

1647102.0204343396478634531376883

result:

ok found '1647102.020434340', expected '1647102.020434395', error '0.000000000'

Test #14:

score: 0
Accepted
time: 12ms
memory: 37556kb

input:

16664 1
0.0012

output:

257920044660.4618124067783355712890625

result:

ok found '257920044660.461822510', expected '257920044630.860534668', error '0.000000000'

Test #15:

score: 0
Accepted
time: 138ms
memory: 37508kb

input:

16664 21
0.0012

output:

92190688.5471635463763959705829620

result:

ok found '92190688.547163546', expected '92190688.544415027', error '0.000000000'

Test #16:

score: 0
Accepted
time: 187ms
memory: 37316kb

input:

16664 41
0.0012

output:

59865.0917869562996287413625396

result:

ok found '59865.091786956', expected '59865.091785920', error '0.000000000'

Test #17:

score: 0
Accepted
time: 24ms
memory: 36828kb

input:

16659 5
0.0003

output:

63366.2644069548118395118763146

result:

ok found '63366.264406955', expected '63366.264406955', error '0.000000000'

Test #18:

score: 0
Accepted
time: 34ms
memory: 36892kb

input:

16659 11
0.0003

output:

18120.9118635425627346080545976

result:

ok found '18120.911863543', expected '18120.911863543', error '0.000000000'

Test #19:

score: 0
Accepted
time: 36ms
memory: 37228kb

input:

16659 17
0.0003

output:

16666.5554519673955091718653421

result:

ok found '16666.555451967', expected '16666.555451967', error '0.000000000'

Test #20:

score: 0
Accepted
time: 8ms
memory: 37828kb

input:

16654 9
0.0001

output:

16656.0794165756316385085256115

result:

ok found '16656.079416576', expected '16656.079416576', error '0.000000000'

Test #21:

score: 0
Accepted
time: 10ms
memory: 37888kb

input:

16654 11
0.0001

output:

16655.6741221724099499823523729

result:

ok found '16655.674122172', expected '16655.674122172', error '0.000000000'

Test #22:

score: 0
Accepted
time: 11ms
memory: 37796kb

input:

16654 13
0.0001

output:

16655.6656953626465114126631306

result:

ok found '16655.665695363', expected '16655.665695363', error '0.000000000'

Test #23:

score: 0
Accepted
time: 2ms
memory: 11036kb

input:

2774 2
0.0072

output:

28951389304.8513895981013774871826172

result:

ok found '28951389304.851390839', expected '28951389306.987514496', error '0.000000000'

Test #24:

score: 0
Accepted
time: 25ms
memory: 9976kb

input:

2774 22
0.0072

output:

11312241.4507960506398376310244203

result:

ok found '11312241.450796051', expected '11312241.450653942', error '0.000000000'

Test #25:

score: 0
Accepted
time: 33ms
memory: 9524kb

input:

2774 42
0.0072

output:

8222.4151085759992270141083281

result:

ok found '8222.415108576', expected '8222.415108509', error '0.000000000'

Test #26:

score: 0
Accepted
time: 3ms
memory: 9368kb

input:

2769 6
0.0021

output:

13600.5823557316508036763025302

result:

ok found '13600.582355732', expected '13600.582355732', error '0.000000000'

Test #27:

score: 0
Accepted
time: 8ms
memory: 11048kb

input:

2769 12
0.0021

output:

3239.5499782111346154245268281

result:

ok found '3239.549978211', expected '3239.549978211', error '0.000000000'

Test #28:

score: 0
Accepted
time: 8ms
memory: 9668kb

input:

2769 18
0.0021

output:

2776.6281948752500787769292856

result:

ok found '2776.628194875', expected '2776.628194875', error '0.000000000'

Test #29:

score: 0
Accepted
time: 0ms
memory: 9420kb

input:

2764 10
0.0007

output:

2765.9870739551089422469942747

result:

ok found '2765.987073955', expected '2765.987073955', error '0.000000000'

Test #30:

score: 0
Accepted
time: 4ms
memory: 9176kb

input:

2764 12
0.0007

output:

2765.9373628499898898347453269

result:

ok found '2765.937362850', expected '2765.937362850', error '0.000000000'

Test #31:

score: 0
Accepted
time: 4ms
memory: 10512kb

input:

2764 14
0.0007

output:

2765.9361767034317352020877934

result:

ok found '2765.936176703', expected '2765.936176704', error '0.000000000'

Test #32:

score: 0
Accepted
time: 649ms
memory: 196888kb

input:

100000 1000000000
0.0001

output:

100010.0010000999785120257001836

result:

ok found '100010.001000100', expected '100010.001000100', error '0.000000000'

Test #33:

score: 0
Accepted
time: 1ms
memory: 3940kb

input:

1 1000000000
0.5

output:

2.0000000000171570912858854

result:

ok found '2.000000000', expected '2.000000000', error '0.000000000'

Test #34:

score: 0
Accepted
time: 0ms
memory: 3940kb

input:

50 50
0.25

output:

66.7341873337335196036956830

result:

ok found '66.734187334', expected '66.734187334', error '0.000000000'

Test #35:

score: -100
Wrong Answer
time: 2ms
memory: 3960kb

input:

40 100
0.5

output:

788.6331217704211140606673780

result:

wrong answer 1st numbers differ - expected: '788.6331240', found: '788.6331218', error = '0.0000000'