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#65159#5117. Find Maximumdad11Compile Error//C++141.5kb2022-11-27 20:53:422022-11-27 20:53:45

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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.
  • [2022-11-27 20:53:45]
  • 评测
  • [2022-11-27 20:53:42]
  • 提交

answer

#include <cstring>
#include <algorithm>
#include <iostream>
#include <vector>
using namespace std;
typedef long long LL;
const int N=40;

int f(int x)
{
	if(x==2) return 3;
	if(x==1) return 2;
	if(x==3) return 3;
	if(x==4) return 4;
}

int main()
{
	int t;
	cin>>t;
	while(t--)
	{
		LL l,r;
		cin>>l>>r;
		if(r<=4)
		{
			cout<<f(r)<<endl;
			continue;
		} 
		vector<int> a,b;
		while(l)
		{
			a.push_back(l%3);
			l/=3;
		}
		while(r)
		{
			b.push_back(r%3);
			r/=3;
		}
		reverse(a.begin(),a.end());
		reverse(b.begin(),b.end());
		
		if(a.size()==b.size())
		{
			LL ans1=0;
			for(int i=0;i<b.size();i++) ans1+=b[i];
			ans1+=b.size();
			int pos=0;
			for(int i=0;i<b.size();i++)
			{
				if(b[i]>a[i])
				{
					pos=i;
					break;
				}
			}
			for(int i=pos+1;i<b.size();i++) b[i]=2;
			b[pos]-=1;
			LL ans=0;
			for(int i=0;i<b.size();i++) ans+=b[i];
			ans+=b.size();
			cout<<max(ans,ans1)<<endl;
		}
		else
		{
			LL ans=0;
			LL cnt=0;
			for(int i=0;i<b.size();i++) cnt+=b[i];
			if(cnt==2*b.size()) ans=3*b.size();
			else 
			{
				LL maxn=0;
				for(int i=0;i<b.size();i++) maxn+=b[i];
				maxn+=b.size();
				if(b[0]==2||(cnt-b[0]==2*(b.size()-1)))
				{
					ans=2*(b.size()-1)+1+b.size();
				}
				else ans=3*(b.size()-1);
			}
			if(b[0]==1&&b[1]==2&&b.size()>=2)
			{
				ans=max(ans,2*(b.size()-1)+b.size());
			}
			ans=max(ans,maxn);
			cout<<ans<<endl;
		}
	}
	return 0;
}

详细

answer.code: In function ‘int main()’:
answer.code:84:40: error: no matching function for call to ‘max(LL&, std::vector<int>::size_type)’
   84 |                                 ans=max(ans,2*(b.size()-1)+b.size());
      |                                     ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/11/algorithm:61,
                 from answer.code:2:
/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:84:40: note:   deduced conflicting types for parameter ‘const _Tp’ (‘long long int’ and ‘std::vector<int>::size_type’ {aka ‘long unsigned int’})
   84 |                                 ans=max(ans,2*(b.size()-1)+b.size());
      |                                     ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/11/algorithm:61,
                 from answer.code:2:
/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:84:40: note:   deduced conflicting types for parameter ‘const _Tp’ (‘long long int’ and ‘std::vector<int>::size_type’ {aka ‘long unsigned int’})
   84 |                                 ans=max(ans,2*(b.size()-1)+b.size());
      |                                     ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/11/algorithm:62,
                 from answer.code:2:
/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:84:40: note:   mismatched types ‘std::initializer_list<_Tp>’ and ‘long long int’
   84 |                                 ans=max(ans,2*(b.size()-1)+b.size());
      |                                     ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/11/algorithm:62,
                 from answer.code:2:
/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:84:40: note:   mismatched types ‘std::initializer_list<_Tp>’ and ‘long long int’
   84 |                                 ans=max(ans,2*(b.size()-1)+b.size());
      |                                     ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
answer.code:86:37: error: ‘maxn’ was not declared in this scope; did you mean ‘main’?
   86 |                         ans=max(ans,maxn);
      |                                     ^~~~
      |                                     main
answer.code: In function ‘int f(int)’:
answer.code:15:1: warning: control reaches end of non-void function [-Wreturn-type]
   15 | }
      | ^