QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#661842 | #8242. V-Diagram | Fluoresce# | RE | 74ms | 3984kb | C++20 | 1.4kb | 2024-10-20 18:28:09 | 2024-10-20 18:28:12 |
Judging History
answer
#include<bits/stdc++.h>
#include<unordered_map>
#include<unordered_set>
typedef long long ll;
typedef long double ld;
typedef unsigned long long ull;
#define debug(a) cout<<a<<'\n'
#define Pll pair<ll,ll>
#define PII pair<int,int>
#define ft first
#define sd second
#define vec vector
#define pushk push_back
#define ump unordered_map
#define pl p<<1
#define pr p<<1|1
using namespace std;
const int N = 1e5 + 10, M = 4e5 + 10, mod = 1e9 + 7;
const ll inf = 1e18;
const ld eps = 1e-13;
int mov[4][2] = { {0,1},{1,0},{-1,0},{0,-1} }, dx, dy, _ = 1, __ = 1;
void bout(bool f) {
if (f)cout << "Yes\n";
else cout << "No\n";
}
ll n, m, k,d;
ll a[N];
void ini() {
}
void solve() {
ld ans=0;
cin>>n;
ll x,y,z,pos,sum=0;
x=1e18;
for(int i=1;i<=n;++i){
cin>>a[i];
if(x>a[i]){
x=a[i];
pos=i;
}
sum+=a[i];
}
x=0;
for(int i=1;i<pos-1;++i){
x+=a[i];
ans=max(ans,(ld)(sum-x)/(n-i));
}
x=0;
for(int i=n;i>pos+1;--i){
x+=a[i];
ans=max(ans,(ld)(sum-x)/(i-1));
}
ans=max(ans,(ld)sum/n);
cout<<fixed<<setprecision(12)<<ans<<'\n';
}
int main() {
ios::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
#ifndef ONLINE_JUDGE
streambuf* cinbackup = cin.rdbuf(), * coutbackup = cout.rdbuf();
ifstream fin("in.txt");
ofstream fout("out.txt");
cin.rdbuf(fin.rdbuf());
cout.rdbuf(fout.rdbuf());
#endif
cin >> _;
__ = _;
ini();
while (_--) {
solve();
}
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 0ms
memory: 3784kb
input:
2 4 8 2 7 10 6 9 6 5 3 4 8
output:
6.750000000000 5.833333333333
result:
ok 2 numbers
Test #2:
score: 0
Accepted
time: 74ms
memory: 3860kb
input:
100000 3 948511478 739365502 813471668 3 881046825 27458122 398507422 3 987554257 399092415 924260278 3 984128569 125199021 716360525 3 529589236 45783262 313507287 3 645443456 85994112 226010681 3 914820717 228360911 572267310 3 418958362 56703604 195276041 3 64461646 26764720 26995581 3 914535039 ...
output:
833782882.666666666686 435670789.666666666657 770302316.666666666686 608562705.000000000000 296293261.666666666657 319149416.333333333343 571816312.666666666686 223646002.333333333328 39407315.666666666668 383253737.666666666657 734363638.666666666686 779975824.333333333314 490276408.333333333343 57...
result:
ok 100000 numbers
Test #3:
score: 0
Accepted
time: 21ms
memory: 3920kb
input:
10000 4 194123849 79274911 191162487 570110764 86 957917218 915359202 914726017 873273226 867724859 867674150 809652204 805531383 745262007 743835491 727071232 714782071 645394643 639432679 594879540 587173904 583418126 560538589 518721836 469558994 427721766 411582333 404948350 402948978 357228675 ...
output:
258668002.750000000000 527118856.755555555545 495489050.352941176476 525232841.149999999994 472025965.700000000012 546154003.125000000000 543366581.516129032243 254833443.199999999997 428466450.049999999988 502458665.384615384624 564217787.333333333314 479468115.118279569899 466246020.204545454559 5...
result:
ok 10000 numbers
Test #4:
score: 0
Accepted
time: 16ms
memory: 3880kb
input:
1000 357 999039850 998470288 997001139 994662646 991895879 986310400 986201443 971759917 969292691 967648767 963962459 963603069 959189978 954532156 936459732 927268934 925199105 918559276 906725073 903024522 891346023 886340039 872105565 871168803 867996002 862017068 851751458 849013653 847967471 8...
output:
493655540.627450980392 515292672.416666666657 498032099.981481481489 481127839.625000000000 526924843.336283185839 488725771.457191780821 533287305.946428571420 438471966.333333333343 536630212.257575757569 560617979.739726027416 489475479.028169014084 484316845.366197183088 535619161.371428571438 5...
result:
ok 1000 numbers
Test #5:
score: 0
Accepted
time: 19ms
memory: 3984kb
input:
100 1152 999672457 998726401 995956848 990786177 990411263 984766135 983346495 982593760 982250360 980153123 975942408 974567443 973232196 970303426 967381747 966555245 966400114 965308448 961378668 960953166 960451796 957742285 957273419 956986267 956737190 956352393 954265694 953272327 952096100 9...
output:
504372755.029159519734 495156421.177481974475 511090599.621761658025 497554816.124314442422 514036973.345568487013 509664056.912052117259 500937804.963666391413 515638734.543239951279 500934821.109582760197 518390767.739205526770 504669526.958182549250 501996849.059280855203 504619908.646973365627 5...
result:
ok 100 numbers
Test #6:
score: -100
Runtime Error
input:
10 29043 999960631 999958134 999901247 999737433 999520614 999519045 999460207 999379140 999279078 999214335 999048733 998866618 998693991 998649435 998636721 998575997 998542938 998513617 998477418 998422985 998403836 998262102 998124856 998017139 998013085 997959891 997944356 997893923 997524695 9...