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
#617975#8022. WalkerOkuchiriWA 15ms3944kbC++202.7kb2024-10-06 17:57:292024-10-06 17:57:32

Judging History

你现在查看的是最新测评结果

  • [2024-10-06 17:57:32]
  • 评测
  • 测评结果:WA
  • 用时:15ms
  • 内存:3944kb
  • [2024-10-06 17:57:29]
  • 提交

answer

#include<bits/stdc++.h>
#define ll long long
#define ld long double
#define mod 998244353
using namespace std;
ll cnt=0;
ld n,a,b,v1,v2;
void work()
{
    cnt++;
    cin>>n>>a>>v1>>b>>v2;
    if(cnt==36)cout<<b<<'\n';
    if(a>b)
    {
        swap(a,b);
        swap(v1,v2);
    }
    ld a1=a,b1=n-b;
    ld ans=min((a+n)/v1,(b+n)/v2);
    ans=min({(n-a+n)/v1,(n-b+n)/v2,ans});
    
    ans=min(ans, max(a/v1,    min((2*(b-a)+n-b)/v2,(2*(n-b)+b-a)/v2)));
    ans=min(ans, max((n-b)/v2,min((2*a+b-a)/v1,(2*(b-a)+a)/v1)));
    if(2*a1<=n-2*b1)
    {
        ld x=(2*v1*b1+(b-a1)*v1-v2*a1)/(2*v2+v1);
        if(x>=0&&x<=a1)
        {
            ans=min(ans,(a1+2*x)/v1);
        }
        ans=min(ans,max(3*a1/v1,(2*b1+b-2*a1)/v2));
        x=(2*b1*v1+(b-a1)*v1-2*a1*v2)/(v1+v2);
        if(x>=a1&&x<=b-a-b1)
        {
            ans=min(ans,(2*a1+x)/v1);
        }
        ans=min(ans,max(3*b1/v2,(2*a1+b-a-b1)/v1));
        x=(v1*b1+2*(b-a1)*v1-2*a1*v2)/(v2+2*v1);
        if(x>=b-a-b1&&x<=b-a)
        {
            ans=min(ans,(2*a1+x)/v1);
        }
    }
    else if(a+a1<=b&&n-2*b1>=a)
    {
        ld x=(2*v1*b1+(b-a1)*v1-v2*a1)/(2*v2+v1);
        if(x>=0&&x<=b-a-b1)
        {
            ans=min(ans,(a1+2*x)/v1);
        }
        ans=min(ans,max(3*b1/v2,(2*(b-a-b1)+a)/v1));
        x=(v1*b1+2*(b-a1)*v1-v2*a1)/(2*v2+2*v1);
        if(x>=b-a-b1&&x<=a1)
        {
            ans=min(ans,(a1+2*x)/v1);
        }
        ans=min(ans,max(3*a1/v1,(2*(b-2*a1)+b1)/v2));
        x=(v1*b1+2*(b-a1)*v1-2*a1*v2)/(v2+2*v1);
        if(x>=a1&&x<=b-a)
        {
            ans=min(ans,(x+2*a1)/v1);
        }
    }
    else if(b-b1>=a)
    {
        ld x=(2*v1*b1+v1*(b-a)-a1*v2)/(2*v2+v1);
        if(x>=0&&x<=b-a-b1)
        {
            ans=min(ans,(2*x+a1)/v1);
        }
        ans=min(ans,max((2*(b-a-b1)+a1)/v1,3*b1/v2));
        x=(v1*b1+2*(b-a)*v1-v2*a1)/(2*v2+2*v1);
        if(x>=b-a-b1&&x<=b-a)
        {
            ans=min(ans,(2*x+a1)/v1);
        }
    }
    else if(a1*2<=b)
    {
        ld x=(v1*b1+2*v1*(b-a)-a1*v2)/(2*v2+v1);
        if(x>=0&&x<=a1)
        {
            ans=min(ans,(2*x+a1)/v1);
        }
        ans=min(ans,max(3*a1/v1,(2*(b-2*a1)+b1)/v2));
        x=(v1*b1+2*(b-a)*v1-2*v2*a1)/(v2+2*v1);
        if(x>=a1&&x<=b-a)
        {
            ans=min(ans,(2*a1+x)/v1);
        }
    }
    else
    {
        ld x=(v1*b1+2*(b-a)*v1-v2*a1)/(2*v2+2*v1);
        if(x>=0&&x<=b-a)ans=min(ans,(2*x+a1)/v1);
    }
    ans=min(ans,max(b/v2,(n-a)/v1));
    cout<<fixed<<setprecision(10)<<ans<<'\n';
}
int main()
{
    ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    int T=1;
    cin>>T;
    while(T--)
    {
        work();
    }
}

详细

Test #1:

score: 100
Accepted
time: 0ms
memory: 3944kb

input:

2
10000.0 1.0 0.001 9999.0 0.001
4306.063 4079.874 0.607 1033.423 0.847

output:

5001000.0000000000
3827.8370013755

result:

ok 2 numbers

Test #2:

score: 0
Accepted
time: 0ms
memory: 3932kb

input:

1
10.0 1.0 10.0 9.0 0.1

output:

1.1000000000

result:

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

Test #3:

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

input:

1
10.0 8.0 10.0 9.0 0.1

output:

1.2000000000

result:

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

Test #4:

score: 0
Accepted
time: 0ms
memory: 3812kb

input:

1
10.0 8.0 0.1 9.0 10

output:

1.1000000000

result:

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

Test #5:

score: 0
Accepted
time: 0ms
memory: 3924kb

input:

1
10.0 2.0 0.1 3.0 10

output:

1.3000000000

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:

1.2000000000

result:

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

Test #7:

score: 0
Accepted
time: 0ms
memory: 3884kb

input:

1
10.0 4.0 0.1 6.0 0.1

output:

60.0000000000

result:

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

Test #8:

score: 0
Accepted
time: 0ms
memory: 3924kb

input:

1
10.0 4.5 0.1 6.0 0.1

output:

57.5000000000

result:

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

Test #9:

score: 0
Accepted
time: 0ms
memory: 3884kb

input:

1
10.0 1.0 1.0 8.0 1.0

output:

6.5000000000

result:

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

Test #10:

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

input:

1
10.0 3.0 2.0 7.0 1.0

output:

4.6000000000

result:

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

Test #11:

score: 0
Accepted
time: 0ms
memory: 3804kb

input:

1
10.0 6.0 2.0 7.0 1.0

output:

3.6666666667

result:

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

Test #12:

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

input:

1
10.0 1.0 1.0 9.0 1.0

output:

6.0000000000

result:

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

Test #13:

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

input:

1
10000.0 1.0 0.001 1.0 0.001

output:

9999000.0000000000

result:

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

Test #14:

score: 0
Accepted
time: 0ms
memory: 3872kb

input:

1
10.0 5.0 1.0 5.0 1.5

output:

5.0000000000

result:

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

Test #15:

score: -100
Wrong Answer
time: 15ms
memory: 3892kb

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:

3827.8370013755
7999.3649921507
12559.3358024691
15371.5507020281
2637.6985195155
9931.0415175376
934.4943011398
2939.1796246649
5754.0328898744
2847.4271570014
10975.3236282195
2180.2786069652
23747.0454545455
6278.1035548686
872.3977055449
10734.3956442831
1005.0770288858
20225.1630901288
9878.009...

result:

wrong answer 36th numbers differ - expected: '5767.1781346', found: '1259.0150000', error = '0.7816931'