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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#471200#8022. WalkerlonlynessWA 22ms4020kbC++231.7kb2024-07-10 19:13:162024-07-10 19:13:17

Judging History

你现在查看的是最新测评结果

  • [2024-07-10 19:13:17]
  • 评测
  • 测评结果:WA
  • 用时:22ms
  • 内存:4020kb
  • [2024-07-10 19:13:16]
  • 提交

answer

#include<iostream>
#include<algorithm>
#include<cstring>
#include<queue>
#include<vector>
#include<set>
#include<map>
#include<cmath>
using namespace std;
#define int long long 
#define endl "\n"
const int N = 2e5+10;
const double esp=1e-8;
typedef pair<int,int> PII;
double n,q1,v1,q2,v2;
bool check(double mid)
{
    bool flag1=1,flag2=1;
    double x2= v2*mid;
    double cnt2=0;
    double cnt1=0;
    if(x2<n-q2)flag2=0;
    else {
        cnt2=max((double)(x2+q2-n)/2.0,(double)(x2-(n-q2)*2.0));
    }
    double x1=v1*mid;
    if(x1<q1)flag1=0;
    else {
        cnt1=max((double)(x1-q1)/2.0,(double)x1-q1*2);
    }
    if(!flag1)
    {
        if(!flag2)return false;
        else {
            if(cnt2>=q2)return true;
            else return false;
        }
    }
    else if(!flag2){
        if(!flag1)return false;
        else {
            if(cnt1>=n-q1)return true;
            else return false;
        }
    }
    else {
        if(cnt1+cnt2>=q2-q1)return true;
        else return false;
    }
}
void solve()  
{
    cin>>n>>q1>>v1>>q2>>v2;
    // cout<<n<<' '<<q1<<' '<<v1<<' '<<q2<<' '<<v2<<endl;
    if(q1>q2){
        swap(q1,q2);
        swap(v1,v2);
    }
    double l = 0,r= 1e7+10;
    int cnt = 0;
    // check(5002000.2);
    while(r-l>esp)
    {
        // cnt++;
        // if(cnt>100)break;
        double mid = (double)(r+l)/2;
        if(check(mid))r= mid;
        else l = mid;
        // printf("%.8f %.8f %.8f\n",r,l,mid);
        
    }
    printf("%.8f\n",l);
}
signed  main()
{
    // ios_base::sync_with_stdio(0); cin.tie(0);cout.tie(0);
  int t=1;
  cin>>t;
  while(t--)
  {
      solve();
  }
    return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 0ms
memory: 4020kb

input:

2
10000.0 1.0 0.001 9999.0 0.001
4306.063 4079.874 0.607 1033.423 0.847

output:

5000999.99999999
3827.83700138

result:

ok 2 numbers

Test #2:

score: 0
Accepted
time: 0ms
memory: 4016kb

input:

1
10.0 1.0 10.0 9.0 0.1

output:

1.09999999

result:

ok found '1.1000000', expected '1.1000000', error '0.0000000'

Test #3:

score: 0
Accepted
time: 0ms
memory: 3960kb

input:

1
10.0 8.0 10.0 9.0 0.1

output:

1.19999999

result:

ok found '1.2000000', expected '1.2000000', error '0.0000000'

Test #4:

score: 0
Accepted
time: 0ms
memory: 3956kb

input:

1
10.0 8.0 0.1 9.0 10

output:

1.09999999

result:

ok found '1.1000000', expected '1.1000000', error '0.0000000'

Test #5:

score: 0
Accepted
time: 0ms
memory: 3892kb

input:

1
10.0 2.0 0.1 3.0 10

output:

1.30000000

result:

ok found '1.3000000', expected '1.3000000', error '0.0000000'

Test #6:

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

input:

1
10.0 9.0 0.1 8.0 10.0

output:

1.19999999

result:

ok found '1.2000000', expected '1.2000000', error '0.0000000'

Test #7:

score: 0
Accepted
time: 0ms
memory: 3840kb

input:

1
10.0 4.0 0.1 6.0 0.1

output:

59.99999999

result:

ok found '60.0000000', expected '60.0000000', error '0.0000000'

Test #8:

score: 0
Accepted
time: 0ms
memory: 3844kb

input:

1
10.0 4.5 0.1 6.0 0.1

output:

57.50000000

result:

ok found '57.5000000', expected '57.5000000', error '0.0000000'

Test #9:

score: 0
Accepted
time: 0ms
memory: 3960kb

input:

1
10.0 1.0 1.0 8.0 1.0

output:

6.49999999

result:

ok found '6.5000000', expected '6.5000000', error '0.0000000'

Test #10:

score: 0
Accepted
time: 0ms
memory: 3960kb

input:

1
10.0 3.0 2.0 7.0 1.0

output:

4.60000000

result:

ok found '4.6000000', expected '4.6000000', error '0.0000000'

Test #11:

score: 0
Accepted
time: 0ms
memory: 3840kb

input:

1
10.0 6.0 2.0 7.0 1.0

output:

3.66666667

result:

ok found '3.6666667', expected '3.6666667', error '0.0000000'

Test #12:

score: 0
Accepted
time: 0ms
memory: 3852kb

input:

1
10.0 1.0 1.0 9.0 1.0

output:

5.99999999

result:

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

Test #13:

score: 0
Accepted
time: 0ms
memory: 3952kb

input:

1
10000.0 1.0 0.001 1.0 0.001

output:

9998999.99999999

result:

ok found '9999000.0000000', expected '9999000.0000000', error '0.0000000'

Test #14:

score: 0
Accepted
time: 0ms
memory: 3848kb

input:

1
10.0 5.0 1.0 5.0 1.5

output:

5.00000000

result:

ok found '5.0000000', expected '5.0000000', error '0.0000000'

Test #15:

score: -100
Wrong Answer
time: 22ms
memory: 3948kb

input:

10000
4306.063 4079.874 0.607 1033.423 0.847
8967.336 8026.500 0.398 283.019 0.876
9568.147 4481.616 0.405 800.114 0.684
9867.264 6184.040 0.312 9853.164 0.641
3344.364 730.612 0.539 1305.868 0.947
9336.180 3672.113 0.773 432.686 0.312
1468.243 59.762 0.840 1438.446 0.827
1355.133 1096.314 0.373 109...

output:

3827.83700138
7999.36499214
12559.33580247
15415.54446178
2637.69851951
9931.04151753
934.49430114
4326.94906166
5754.03288987
2847.42715700
10975.32362821
2902.17910448
24531.53636363
6278.10355486
1030.00000000
10734.39564428
1005.07702888
24249.74678111
9878.00994575
22899.25925925
12409.89777777...

result:

wrong answer 4th numbers differ - expected: '15371.5507020', found: '15415.5444618', error = '0.0028620'