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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 |
|---|---|---|---|---|---|---|---|---|---|
| #105009 | #5170. 加速度 | haoren | Compile Error | / | / | C++14 | 1.5kb | 2023-05-12 20:20:20 | 2023-05-12 20:20:22 |
Judging History
你现在查看的是最新测评结果
- [2023-08-10 23:21:45]
- System Update: QOJ starts to keep a history of the judgings of all the submissions.
- [2023-05-12 20:20:22]
- 评测
- 测评结果：Compile Error
- 用时：0ms
- 内存：0kb
- [2023-05-12 20:20:20]
- 提交
answer
#include<bits/stdc++.h>
#define int long long
using namespace std;
inline int read()
{
int aa=0,f=1;char ch=getchar();
while(ch<'0'||ch>'9') {if(ch=='-') f=-1;ch=getchar();}
while(ch>='0'&&ch<='9')aa=(aa<<3)+(aa<<1)+ch-'0',ch=getchar();
return aa*f;
}
const int M=5e3+10;
int n,a;
int s[M],l[M],r[M];
double f[M],ans=1e18;
main(){
n=read();a=read();for(int i=1;i<=n+1;i++) s[i]=read();for(int i=1;i<=n+1;i++) l[i]=read(),r[i]=read();r[1]=0;
for(int i=1;i<=n;i++){
double l1=0,l2=0,r1=1e18,r2=f[i];
//路径需要等待时间/提供等待时间
//路径速度限制
for(int j=i+1;j<=n;j++){
//无初速度
if(r[j]<r[i]) break;double t=sqrt(2.0*(s[j]-s[i])*1.0/(1.0*a)),wt=r[j]-r[i]-t;//等待时间
if(wt>=l1&&wt<=r1) f[j]=max(f[j],t*1.0*a);if(l[j]>r[i]) l1=max(l1,l[j]-r[i]-t);r1=min(r1,wt);
//有初速度
double v0=(s[j]-s[i])*1.0/(1.0*(r[j]-r[i]))-0.5*a*((r[j]-r[i])*1.0);
if(v0>=l2&&v0<=r2) f[j]=max(f[j],sqrt(2.0*a*(1.0*(s[j]-s[i]))+v0*v0));
if(l[j]>r[i]) r2=min(r2,(s[j]-s[i])*1.0/(1.0*(l[j]-r[i]))-0.5*a*(1.0*(l[j]-r[i])));l2=max(l2,v0);
if(j==n){
if(l1<=r1&&sqrt(2.0*(s[n+1]-s[i])*1.0/(1.0*a))<=r[n+1]) ans=min(ans,sqrt(2.0*(s[n+1]-s[i])*1.0/(1.0*a))+l1+r[i]);
if(l2<=r2){double vmax=sqrt((s[n+1]-s[i])*1.0*a*2.0+r2*r2);
cout<<(vmax-r2)*1.0/(1.0*a)+r[i]<<'\n';
ans=min(ans,(vmax-r2)*1.0/(1.0*a)+r[i]);}
}
}
}
if(ans==1e18) cout<<"kaibai";
else printf("%0.6lf",max(ans,l[n+1]));
}
详细
answer.code:15:1: warning: ISO C++ forbids declaration of ‘main’ with no type [-Wreturn-type]
15 | main(){
| ^~~~
answer.code: In function ‘int main()’:
answer.code:38:33: error: no matching function for call to ‘max(double&, long long int&)’
38 | else printf("%0.6lf",max(ans,l[n+1]));
| ~~~^~~~~~~~~~~~
In file included from /usr/include/c++/11/bits/char_traits.h:39,
from /usr/include/c++/11/ios:40,
from /usr/include/c++/11/istream:38,
from /usr/include/c++/11/sstream:38,
from /usr/include/c++/11/complex:45,
from /usr/include/c++/11/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54,
from answer.code:1:
/usr/include/c++/11/bits/stl_algobase.h:254:5: note: candidate: ‘template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)’
254 | max(const _Tp& __a, const _Tp& __b)
| ^~~
/usr/include/c++/11/bits/stl_algobase.h:254:5: note: template argument deduction/substitution failed:
answer.code:38:33: note: deduced conflicting types for parameter ‘const _Tp’ (‘double’ and ‘long long int’)
38 | else printf("%0.6lf",max(ans,l[n+1]));
| ~~~^~~~~~~~~~~~
In file included from /usr/include/c++/11/bits/char_traits.h:39,
from /usr/include/c++/11/ios:40,
from /usr/include/c++/11/istream:38,
from /usr/include/c++/11/sstream:38,
from /usr/include/c++/11/complex:45,
from /usr/include/c++/11/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54,
from answer.code:1:
/usr/include/c++/11/bits/stl_algobase.h:300:5: note: candidate: ‘template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)’
300 | max(const _Tp& __a, const _Tp& __b, _Compare __comp)
| ^~~
/usr/include/c++/11/bits/stl_algobase.h:300:5: note: template argument deduction/substitution failed:
answer.code:38:33: note: deduced conflicting types for parameter ‘const _Tp’ (‘double’ and ‘long long int’)
38 | else printf("%0.6lf",max(ans,l[n+1]));
| ~~~^~~~~~~~~~~~
In file included from /usr/include/c++/11/algorithm:62,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:65,
from answer.code:1:
/usr/include/c++/11/bits/stl_algo.h:3461:5: note: candidate: ‘template<class _Tp> constexpr _Tp std::max(std::initializer_list<_Tp>)’
3461 | max(initializer_list<_Tp> __l)
| ^~~
/usr/include/c++/11/bits/stl_algo.h:3461:5: note: template argument deduction/substitution failed:
answer.code:38:33: note: mismatched types ‘std::initializer_list<_Tp>’ and ‘double’
38 | else printf("%0.6lf",max(ans,l[n+1]));
| ~~~^~~~~~~~~~~~
In file included from /usr/include/c++/11/algorithm:62,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:65,
from answer.code:1:
/usr/include/c++/11/bits/stl_algo.h:3467:5: note: candidate: ‘template<class _Tp, class _Compare> constexpr _Tp std::max(std::initializer_list<_Tp>, _Compare)’
3467 | max(initializer_list<_Tp> __l, _Compare __comp)
| ^~~
/usr/include/c++/11/bits/stl_algo.h:3467:5: note: template argument deduction/substitution failed:
answer.code:38:33: note: mismatched types ‘std::initializer_list<_Tp>’ and ‘double’
38 | else printf("%0.6lf",max(ans,l[n+1]));
| ~~~^~~~~~~~~~~~