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 |
|---|---|---|---|---|---|---|---|---|---|
| #61149 | #4994. Graduation Guarantee | feecle6418# | AC ✓ | 91ms | 218756kb | C++14 | 461b | 2022-11-10 20:05:07 | 2022-11-10 20:05:09 |
Judging History
answer
#include<bits/stdc++.h>
typedef long long ll;
using namespace std;
int n,m;
double a[5005],f[5005][10005];
int main(){
cin>>n>>m;
for(int i=1;i<=n;i++)cin>>a[i];
sort(a+1,a+n+1,greater<double>());
f[0][n]=1;
double ans=0;
for(int i=1;i<=n;i++){
for(int j=n-i+1;j<=n+i-1;j++){
f[i][j+1]+=f[i-1][j]*a[i];
f[i][j-1]+=f[i-1][j]*(1-a[i]);
}
double s=0;
for(int j=n+m;j<=n+i;j++)s+=f[i][j];
ans=max(ans,s);
}
cout<<ans;
}
详细
Test #1:
score: 100
Accepted
time: 3ms
memory: 3632kb
input:
3 3 0.5 0.5 0.5
output:
0.125
result:
ok found '0.1250000', expected '0.1250000', error '0.0000000'
Test #2:
score: 0
Accepted
time: 2ms
memory: 3496kb
input:
4 1 0.9 0.5 0.9 0.9
output:
0.972
result:
ok found '0.9720000', expected '0.9720000', error '0.0000000'
Test #3:
score: 0
Accepted
time: 2ms
memory: 3528kb
input:
10 5 0.692688 0.899145 0.65621 0.936872 0.879521 0.944595 0.551165 0.661595 0.508139 0.911566
output:
0.72617
result:
ok found '0.7261700', expected '0.7261704', error '0.0000004'
Test #4:
score: 0
Accepted
time: 2ms
memory: 4076kb
input:
100 47 0.612726 0.62994 0.675499 0.998664 0.779532 0.549285 0.80413 0.701691 0.871286 0.782539 0.677336 0.8622 0.876787 0.574809 0.675061 0.94617 0.516776 0.528521 0.748959 0.503633 0.706856 0.825646 0.682937 0.692507 0.765989 0.860494 0.660668 0.56025 0.719626 0.945801 0.512379 0.803646 0.848648 0....
output:
0.537372
result:
ok found '0.5373720', expected '0.5373724', error '0.0000004'
Test #5:
score: 0
Accepted
time: 2ms
memory: 3496kb
input:
1 1 0.744983
output:
0.744983
result:
ok found '0.7449830', expected '0.7449830', error '0.0000000'
Test #6:
score: 0
Accepted
time: 80ms
memory: 218488kb
input:
5000 1 0.506147 0.719663 0.733941 0.962763 0.600348 0.705419 0.834251 0.871054 0.769358 0.846804 0.708091 0.982093 0.53003 0.853035 0.687889 0.621508 0.886268 0.99639 0.769068 0.976249 0.942098 0.797744 0.95618 0.769761 0.54766 0.808601 0.768919 0.510475 0.796282 0.700578 0.95055 0.850628 0.59055 0....
output:
1
result:
ok found '1.0000000', expected '1.0000000', error '0.0000000'
Test #7:
score: 0
Accepted
time: 52ms
memory: 218392kb
input:
5000 400 0.949731 0.781106 0.989654 0.915645 0.820348 0.986255 0.556562 0.980361 0.585268 0.619063 0.638805 0.626075 0.712861 0.830454 0.752119 0.586471 0.790363 0.766842 0.728335 0.692244 0.512937 0.783807 0.770433 0.873134 0.700165 0.987424 0.825446 0.565547 0.583478 0.822277 0.670801 0.767487 0.7...
output:
1
result:
ok found '1.0000000', expected '1.0000000', error '0.0000000'
Test #8:
score: 0
Accepted
time: 44ms
memory: 218404kb
input:
5000 2210 0.71203 0.679108 0.907887 0.712217 0.893169 0.626399 0.906301 0.959817 0.750885 0.733514 0.798381 0.512897 0.500635 0.886224 0.796957 0.951011 0.733914 0.643075 0.681363 0.910476 0.97669 0.831855 0.579655 0.662137 0.786903 0.847733 0.984589 0.766957 0.535981 0.746778 0.795429 0.830155 0.94...
output:
0.999999
result:
ok found '0.9999990', expected '0.9999986', error '0.0000004'
Test #9:
score: 0
Accepted
time: 60ms
memory: 218336kb
input:
5000 2435 0.85976 0.825175 0.988123 0.99143 0.946364 0.80865 0.946633 0.500816 0.791339 0.801104 0.595224 0.672078 0.595843 0.562347 0.6636 0.883299 0.717638 0.798594 0.843852 0.516739 0.75418 0.542577 0.708065 0.551775 0.576655 0.778256 0.999522 0.813346 0.690432 0.846349 0.711335 0.899078 0.82188 ...
output:
0.882359
result:
ok found '0.8823590', expected '0.8823587', error '0.0000003'
Test #10:
score: 0
Accepted
time: 51ms
memory: 218344kb
input:
5000 2500 0.905245 0.789837 0.893132 0.880538 0.959228 0.767463 0.635301 0.788896 0.960618 0.588802 0.555198 0.539172 0.574133 0.898318 0.860345 0.520061 0.787785 0.679539 0.756813 0.617915 0.954852 0.693077 0.542528 0.514414 0.764342 0.836346 0.815288 0.786298 0.83269 0.843336 0.947585 0.897566 0.7...
output:
0.454068
result:
ok found '0.4540680', expected '0.4540678', error '0.0000002'
Test #11:
score: 0
Accepted
time: 61ms
memory: 218336kb
input:
5000 2511 0.844207 0.714516 0.836117 0.737791 0.630006 0.845518 0.922792 0.545091 0.897151 0.994806 0.641675 0.820565 0.631293 0.524277 0.772035 0.613939 0.552815 0.682716 0.755224 0.92624 0.827741 0.83099 0.625213 0.609891 0.996279 0.991838 0.698857 0.870544 0.530011 0.834654 0.639099 0.855393 0.56...
output:
0.358967
result:
ok found '0.3589670', expected '0.3589672', error '0.0000002'
Test #12:
score: 0
Accepted
time: 44ms
memory: 218396kb
input:
5000 2675 0.59012 0.755299 0.790643 0.925329 0.725113 0.547689 0.941098 0.656052 0.575288 0.756949 0.716317 0.658672 0.850807 0.500306 0.776437 0.573604 0.927024 0.505189 0.668677 0.688409 0.771328 0.564915 0.710954 0.817811 0.779639 0.640181 0.563585 0.790086 0.776722 0.501666 0.834008 0.672922 0.6...
output:
0.000443027
result:
ok found '0.0004430', expected '0.0004430', error '0.0000000'
Test #13:
score: 0
Accepted
time: 48ms
memory: 218536kb
input:
5000 4191 0.854051 0.667591 0.580349 0.742787 0.538388 0.92076 0.505213 0.751024 0.527905 0.719297 0.890786 0.768011 0.612651 0.511268 0.921473 0.525477 0.935572 0.771655 0.983739 0.976279 0.966472 0.556883 0.957248 0.913558 0.58931 0.575164 0.59759 0.676977 0.673129 0.525216 0.847845 0.746457 0.883...
output:
3.09872e-228
result:
ok found '0.0000000', expected '0.0000000', error '0.0000000'
Test #14:
score: 0
Accepted
time: 65ms
memory: 218756kb
input:
5000 5000 0.723988 0.943979 0.822556 0.787549 0.997458 0.981213 0.838612 0.584808 0.826804 0.876347 0.869831 0.777959 0.806646 0.935551 0.682757 0.529446 0.550732 0.614141 0.617399 0.708785 0.894561 0.583515 0.723974 0.697766 0.934301 0.645148 0.697407 0.61308 0.643698 0.677768 0.83191 0.934103 0.77...
output:
0
result:
ok found '0.0000000', expected '0.0000000', error '-0.0000000'
Test #15:
score: 0
Accepted
time: 45ms
memory: 218536kb
input:
5000 5000 0.999992 0.999998 0.999997 0.999992 0.99999 0.999996 0.999991 0.99999 0.999996 0.999992 0.999999 0.999998 0.99999 0.999991 0.999997 0.999991 0.999992 0.999991 0.999991 0.999996 0.99999 0.999998 0.999998 0.999995 0.999992 1.0 0.999996 0.999994 0.999999 0.999994 0.999993 0.999999 0.999991 0....
output:
0.975079
result:
ok found '0.9750790', expected '0.9750787', error '0.0000003'
Test #16:
score: 0
Accepted
time: 2ms
memory: 3644kb
input:
20 10 0.500005 0.50001 0.500004 0.5 0.500001 0.500001 0.500003 0.500004 0.500005 0.500008 0.500008 0.500002 0.500004 0.500009 0.500003 0.500004 0.500003 0.500009 0.500008 0.500006
output:
0.0206969
result:
ok found '0.0206969', expected '0.0206969', error '0.0000000'
Test #17:
score: 0
Accepted
time: 1ms
memory: 3624kb
input:
20 16 1.0 1.0 1.0 1.0 0.5 1.0 0.5 1.0 1.0 1.0 1.0 1.0 0.5 1.0 0.5 0.5 0.5 0.5 0.5 1.0
output:
0.144531
result:
ok found '0.1445310', expected '0.1445312', error '0.0000003'
Test #18:
score: 0
Accepted
time: 53ms
memory: 218392kb
input:
5000 2000 1.0 0.5 1.0 1.0 1.0 1.0 1.0 0.5 1.0 1.0 0.5 1.0 0.5 1.0 1.0 0.5 1.0 0.5 1.0 0.5 0.5 1.0 0.5 0.5 1.0 1.0 0.5 0.5 1.0 0.5 0.5 0.5 0.5 0.5 1.0 0.5 0.5 1.0 0.5 1.0 1.0 1.0 0.5 1.0 0.5 1.0 0.5 0.5 1.0 1.0 1.0 1.0 1.0 1.0 0.5 1.0 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 1.0 1.0 0.5 1.0 1.0 0.5 1.0 1....
output:
1
result:
ok found '1.0000000', expected '1.0000000', error '0.0000000'
Test #19:
score: 0
Accepted
time: 56ms
memory: 218340kb
input:
5000 2600 1.0 1.0 0.5 0.5 0.5 1.0 0.5 0.5 0.5 0.5 1.0 0.5 0.5 1.0 1.0 1.0 0.5 0.5 1.0 1.0 0.5 0.5 0.5 0.5 0.5 1.0 1.0 0.5 0.5 1.0 0.5 0.5 1.0 0.5 0.5 0.5 0.5 1.0 0.5 1.0 0.5 1.0 1.0 1.0 1.0 0.5 1.0 0.5 1.0 1.0 1.0 0.5 1.0 1.0 0.5 0.5 0.5 1.0 0.5 1.0 1.0 0.5 0.5 0.5 0.5 0.5 1.0 1.0 1.0 0.5 0.5 0.5 1....
output:
0.113237
result:
ok found '0.1132370', expected '0.1132373', error '0.0000003'
Test #20:
score: 0
Accepted
time: 68ms
memory: 218464kb
input:
5000 3000 0.7 0.6 0.6 0.6 0.6 0.7 0.7 0.7 0.6 0.7 0.7 0.6 0.6 0.6 0.6 0.6 0.6 0.7 0.7 0.7 0.7 0.7 0.6 0.7 0.7 0.7 0.7 0.7 0.6 0.7 0.6 0.6 0.7 0.6 0.6 0.7 0.7 0.6 0.7 0.7 0.6 0.6 0.7 0.6 0.7 0.6 0.6 0.7 0.6 0.6 0.6 0.6 0.7 0.7 0.6 0.6 0.6 0.7 0.7 0.6 0.7 0.7 0.7 0.7 0.6 0.7 0.7 0.6 0.7 0.6 0.7 0.7 0....
output:
8.80391e-120
result:
ok found '0.0000000', expected '0.0000000', error '0.0000000'
Test #21:
score: 0
Accepted
time: 36ms
memory: 218536kb
input:
5000 5000 0.9999 0.9999 0.9999 0.99999 0.99999 0.9999 0.99999 0.99999 0.99999 0.99999 0.9999 0.99999 0.9999 0.99999 0.9999 0.99999 0.9999 0.99999 0.99999 0.9999 0.99999 0.99999 0.99999 0.99999 0.9999 0.9999 0.9999 0.9999 0.99999 0.9999 0.9999 0.99999 0.9999 0.99999 0.99999 0.9999 0.99999 0.9999 0.99...
output:
0.764776
result:
ok found '0.7647760', expected '0.7647760', error '0.0000000'
Test #22:
score: 0
Accepted
time: 85ms
memory: 218348kb
input:
5000 1 0.50001 0.50001 0.50001 0.50001 0.50001 0.50001 0.50001 0.50001 0.5 0.5 0.50001 0.50001 0.50001 0.5 0.50001 0.5 0.50001 0.50001 0.50001 0.5 0.5 0.5 0.50001 0.5 0.50001 0.5 0.5 0.5 0.50001 0.5 0.5 0.50001 0.50001 0.50001 0.5 0.5 0.5 0.50001 0.50001 0.50001 0.50001 0.50001 0.50001 0.5 0.5 0.500...
output:
0.5004
result:
ok found '0.5004000', expected '0.5003999', error '0.0000001'
Test #23:
score: 0
Accepted
time: 68ms
memory: 218332kb
input:
5000 2550 0.99999 0.99999 0.99999 0.99999 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.99999 0.99999 0.5 0.99999 0.5 0.99999 0.5 0.5 0.99999 0.99999 0.5 0.99999 0.99999 0.5 0.99999 0.5 0.5 0.5 0.99999 0.99999 0.99999 0.99999 0.5 0.99999 0.5 0.5 0.99999 0.99999 0.5 0.99999 0.99999 0.5 0.5 0.99999 0.5 0.5 0.99999 0....
output:
0.188926
result:
ok found '0.1889260', expected '0.1889263', error '0.0000003'
Test #24:
score: 0
Accepted
time: 57ms
memory: 218452kb
input:
5000 1000 0.573979 0.66648 0.837479 0.646164 0.82281 0.503116 0.750598 0.506659 0.590989 0.723873 0.814274 0.533182 0.55926 0.500155 0.643449 0.895303 0.953762 0.545179 0.700636 0.614141 0.50281 0.601696 0.89439 0.784236 0.732711 0.612275 0.713909 0.505734 0.781685 0.557303 0.634015 0.809354 0.52173...
output:
0.999977
result:
ok found '0.9999770', expected '0.9999770', error '0.0000000'
Test #25:
score: 0
Accepted
time: 83ms
memory: 218340kb
input:
5000 1250 0.558686 0.504831 0.794092 0.55769 0.613812 0.51749 0.675135 0.90028 0.643215 0.747141 0.680045 0.763593 0.790229 0.634649 0.54581 0.521091 0.882598 0.939849 0.588177 0.847337 0.608842 0.632905 0.771339 0.659504 0.525063 0.84975 0.503895 0.528513 0.622738 0.534078 0.508869 0.577018 0.53623...
output:
0.51925
result:
ok found '0.5192500', expected '0.5192497', error '0.0000003'
Test #26:
score: 0
Accepted
time: 91ms
memory: 218332kb
input:
5000 1500 0.566069 0.654367 0.574283 0.530919 0.577292 0.622283 0.569832 0.780864 0.622053 0.522289 0.846109 0.617616 0.598611 0.550527 0.523834 0.55392 0.780419 0.511342 0.548441 0.640521 0.918236 0.856115 0.521631 0.772784 0.582256 0.66865 0.533183 0.797523 0.902415 0.794695 0.512854 0.501768 0.52...
output:
0.000208704
result:
ok found '0.0002087', expected '0.0002087', error '0.0000000'
Test #27:
score: 0
Accepted
time: 48ms
memory: 218468kb
input:
5000 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0...
output:
0.9
result:
ok found '0.9000000', expected '0.9000000', error '0.0000000'
Test #28:
score: 0
Accepted
time: 85ms
memory: 218384kb
input:
5000 2 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0...
output:
0.81
result:
ok found '0.8100000', expected '0.8100000', error '0.0000000'
Test #29:
score: 0
Accepted
time: 60ms
memory: 218384kb
input:
5000 3 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0...
output:
0.497743
result:
ok found '0.4977430', expected '0.4977430', error '0.0000000'