對map成員進行transform和sort，會的請進-有解無憂

#include<iostream>

#include<vector>

#include<string>

#include <map>

#include<iterator>

#include <algorithm>



using namespace std;

int	criterion;	//分數線



pair< string, int > function1( pair< string, int > &p )

{

	if( p.second >= criterion )

		return p;

}



bool function2( pair< string, int > &a ,pair< string, int > &b )

{

	return a.second < b.second;

}



int main()

{

	int examinees;	//考生人數

	int question_n;	//題數

	



	while( cin >> examinees && examinees != 0 && cin >> question_n >> criterion )

	{



		map<string,int> course;

		vector<int> que_cource;

		int tmp;



		//輸入題目的分數

		while( question_n-- != 0 && cin >> tmp )

			que_cource.push_back( tmp );



		while( examinees-- != 0 )

		{

			string name;	//姓名

			int solve;	//解題數

			

			

			cin >> name >> solve;

			course.insert( make_pair(name,0) );



			int n;

			int sum = 0; //總分

			while( solve-- != 0 && cin >> n )

			{

				sum += que_cource[n-1];

			}

			//記錄該學生總分

			course[name] = sum;

		}

		

		//符合人數

		map<string,int> out;

		transform( course.begin(),course.end(), back_inserter(out), function1 );



		//排序

		sort( out.begin(), out.end(), function2 );



		map<string,int>::iterator iter = out.begin();

		//輸出結果

		cout << out.size() << endl;

		for( ; iter != out.end(); iter++ )

		{

			cout << iter->first << " " << iter->second << endl;

		}

	}

	return 0;

}

出現了這樣的錯誤：

1>------ 已啟動生成: 專案: 排名, 配置: Debug Win32 ------
1>生成啟動時間為 2013/5/14 15:33:37。
1>InitializeBuildStatus:
1>  正在對“Debug\排名.unsuccessfulbuild”執行 Touch 任務。
1>ClCompile:
1>  main.cpp
1>e:\microsoft visual studio 10.0\vc\include\algorithm(3806): error C2784: “_RanIt1::difference_type std::operator -(std::move_iterator<_RanIt> &,const std::move_iterator<_RanIt2> &)”: 未能從“std::_Tree_iterator<_Mytree>”為“std::move_iterator<_RanIt> &”推導模板引數
1>          with
1>          [
1>              _Mytree=std::_Tree_val<std::_Tmap_traits<std::string,int,std::less<std::string>,std::allocator<std::pair<const std::string,int>>,false>>
1>          ]
1>          e:\microsoft visual studio 10.0\vc\include\iterator(344) : 參見“std::operator -”的宣告
1>          e:\visual studio 2010\projects\acm\排名\排名\main.cpp(63): 參見對正在編譯的函式模板實體化“void std::sort<std::_Tree_iterator<_Mytree>,bool(__cdecl *)(std::pair<_Ty1,_Ty2> &,std::pair<_Ty1,_Ty2> &)>(_RanIt,_RanIt,_Pr)”的參考
1>          with
1>          [
1>              _Mytree=std::_Tree_val<std::_Tmap_traits<std::string,int,std::less<std::string>,std::allocator<std::pair<const std::string,int>>,false>>,
1>              _Ty1=std::string,
1>              _Ty2=int,
1>              _RanIt=std::_Tree_iterator<std::_Tree_val<std::_Tmap_traits<std::string,int,std::less<std::string>,std::allocator<std::pair<const std::string,int>>,false>>>,
1>              _Pr=bool (__cdecl *)(std::pair<std::string,int> &,std::pair<std::string,int> &)
1>          ]
1>e:\microsoft visual studio 10.0\vc\include\algorithm(3806): error C2784: “_RanIt1::difference_type std::operator -(std::move_iterator<_RanIt> &,const std::move_iterator<_RanIt2> &)”: 未能從“std::_Tree_iterator<_Mytree>”為“std::move_iterator<_RanIt> &”推導模板引數
1>          with
1>          [
1>              _Mytree=std::_Tree_val<std::_Tmap_traits<std::string,int,std::less<std::string>,std::allocator<std::pair<const std::string,int>>,false>>
1>          ]
1>          e:\microsoft visual studio 10.0\vc\include\iterator(344) : 參見“std::operator -”的宣告
1>e:\microsoft visual studio 10.0\vc\include\algorithm(3806): error C2784: “_RanIt1::difference_type std::operator -(std::move_iterator<_RanIt> &,const std::move_iterator<_RanIt2> &)”: 未能從“std::_Tree_iterator<_Mytree>”為“std::move_iterator<_RanIt> &”推導模板引數
1>          with
1>          [
1>              _Mytree=std::_Tree_val<std::_Tmap_traits<std::string,int,std::less<std::string>,std::allocator<std::pair<const std::string,int>>,false>>
1>          ]
1>          e:\microsoft visual studio 10.0\vc\include\iterator(344) : 參見“std::operator -”的宣告
1>e:\microsoft visual studio 10.0\vc\include\algorithm(3806): error C2784: “_RanIt1::difference_type std::operator -(std::move_iterator<_RanIt> &,const std::move_iterator<_RanIt2> &)”: 未能從“std::_Tree_iterator<_Mytree>”為“std::move_iterator<_RanIt> &”推導模板引數
1>          with
1>          [
1>              _Mytree=std::_Tree_val<std::_Tmap_traits<std::string,int,std::less<std::string>,std::allocator<std::pair<const std::string,int>>,false>>
1>          ]
1>          e:\microsoft visual studio 10.0\vc\include\iterator(344) : 參見“std::operator -”的宣告
1>e:\microsoft visual studio 10.0\vc\include\algorithm(3806): error C2784: “_RanIt1::difference_type std::operator -(std::move_iterator<_RanIt> &,const std::move_iterator<_RanIt2> &)”: 未能從“std::_Tree_iterator<_Mytree>”為“std::move_iterator<_RanIt> &”推導模板引數
1>          with
1>          [
1>              _Mytree=std::_Tree_val<std::_Tmap_traits<std::string,int,std::less<std::string>,std::allocator<std::pair<const std::string,int>>,false>>
1>          ]
1>          e:\microsoft visual studio 10.0\vc\include\iterator(344) : 參見“std::operator -”的宣告
1>e:\microsoft visual studio 10.0\vc\include\algorithm(3806): error C2784: “reverse_iterator<_RanIt>::difference_type std::operator -(const std::reverse_iterator<_RanIt> &,const std::reverse_iterator<_RanIt2> &)”: 未能從“std::_Tree_iterator<_Mytree>”為“const std::reverse_iterator<_RanIt> &”推導模板引數
1>          with
1>          [
1>              _Mytree=std::_Tree_val<std::_Tmap_traits<std::string,int,std::less<std::string>,std::allocator<std::pair<const std::string,int>>,false>>
1>          ]
1>          e:\microsoft visual studio 10.0\vc\include\xutility(1332) : 參見“std::operator -”的宣告
1>e:\microsoft visual studio 10.0\vc\include\algorithm(3806): error C2784: “reverse_iterator<_RanIt>::difference_type std::operator -(const std::reverse_iterator<_RanIt> &,const std::reverse_iterator<_RanIt2> &)”: 未能從“std::_Tree_iterator<_Mytree>”為“const std::reverse_iterator<_RanIt> &”推導模板引數
1>          with
1>          [
1>              _Mytree=std::_Tree_val<std::_Tmap_traits<std::string,int,std::less<std::string>,std::allocator<std::pair<const std::string,int>>,false>>
1>          ]
1>          e:\microsoft visual studio 10.0\vc\include\xutility(1332) : 參見“std::operator -”的宣告
1>e:\microsoft visual studio 10.0\vc\include\algorithm(3806): error C2784: “reverse_iterator<_RanIt>::difference_type std::operator -(const std::reverse_iterator<_RanIt> &,const std::reverse_iterator<_RanIt2> &)”: 未能從“std::_Tree_iterator<_Mytree>”為“const std::reverse_iterator<_RanIt> &”推導模板引數
1>          with
1>          [
1>              _Mytree=std::_Tree_val<std::_Tmap_traits<std::string,int,std::less<std::string>,std::allocator<std::pair<const std::string,int>>,false>>
1>          ]
1>          e:\microsoft visual studio 10.0\vc\include\xutility(1332) : 參見“std::operator -”的宣告
1>e:\microsoft visual studio 10.0\vc\include\algorithm(3806): error C2784: “reverse_iterator<_RanIt>::difference_type std::operator -(const std::reverse_iterator<_RanIt> &,const std::reverse_iterator<_RanIt2> &)”: 未能從“std::_Tree_iterator<_Mytree>”為“const std::reverse_iterator<_RanIt> &”推導模板引數
1>          with
1>          [
1>              _Mytree=std::_Tree_val<std::_Tmap_traits<std::string,int,std::less<std::string>,std::allocator<std::pair<const std::string,int>>,false>>
1>          ]
1>          e:\microsoft visual studio 10.0\vc\include\xutility(1332) : 參見“std::operator -”的宣告
1>e:\microsoft visual studio 10.0\vc\include\algorithm(3806): error C2784: “reverse_iterator<_RanIt>::difference_type std::operator -(const std::reverse_iterator<_RanIt> &,const std::reverse_iterator<_RanIt2> &)”: 未能從“std::_Tree_iterator<_Mytree>”為“const std::reverse_iterator<_RanIt> &”推導模板引數
1>          with
1>          [
1>              _Mytree=std::_Tree_val<std::_Tmap_traits<std::string,int,std::less<std::string>,std::allocator<std::pair<const std::string,int>>,false>>
1>          ]
1>          e:\microsoft visual studio 10.0\vc\include\xutility(1332) : 參見“std::operator -”的宣告
1>e:\microsoft visual studio 10.0\vc\include\algorithm(3806): error C2784: “_Base1::difference_type std::operator -(const std::_Revranit<_RanIt,_Base> &,const std::_Revranit<_RanIt2,_Base2> &)”: 未能從“std::_Tree_iterator<_Mytree>”為“const std::_Revranit<_RanIt,_Base> &”推導模板引數
1>          with
1>          [
1>              _Mytree=std::_Tree_val<std::_Tmap_traits<std::string,int,std::less<std::string>,std::allocator<std::pair<const std::string,int>>,false>>
1>          ]
1>          e:\microsoft visual studio 10.0\vc\include\xutility(1146) : 參見“std::operator -”的宣告
1>e:\microsoft visual studio 10.0\vc\include\algorithm(3806): error C2784: “_Base1::difference_type std::operator -(const std::_Revranit<_RanIt,_Base> &,const std::_Revranit<_RanIt2,_Base2> &)”: 未能從“std::_Tree_iterator<_Mytree>”為“const std::_Revranit<_RanIt,_Base> &”推導模板引數
1>          with
1>          [
1>              _Mytree=std::_Tree_val<std::_Tmap_traits<std::string,int,std::less<std::string>,std::allocator<std::pair<const std::string,int>>,false>>
1>          ]
1>          e:\microsoft visual studio 10.0\vc\include\xutility(1146) : 參見“std::operator -”的宣告
1>e:\microsoft visual studio 10.0\vc\include\algorithm(3806): error C2784: “_Base1::difference_type std::operator -(const std::_Revranit<_RanIt,_Base> &,const std::_Revranit<_RanIt2,_Base2> &)”: 未能從“std::_Tree_iterator<_Mytree>”為“const std::_Revranit<_RanIt,_Base> &”推導模板引數
1>          with
1>          [
1>              _Mytree=std::_Tree_val<std::_Tmap_traits<std::string,int,std::less<std::string>,std::allocator<std::pair<const std::string,int>>,false>>
1>          ]
1>          e:\microsoft visual studio 10.0\vc\include\xutility(1146) : 參見“std::operator -”的宣告
1>e:\microsoft visual studio 10.0\vc\include\algorithm(3806): error C2784: “_Base1::difference_type std::operator -(const std::_Revranit<_RanIt,_Base> &,const std::_Revranit<_RanIt2,_Base2> &)”: 未能從“std::_Tree_iterator<_Mytree>”為“const std::_Revranit<_RanIt,_Base> &”推導模板引數
1>          with
1>          [
1>

轉載請註明出處，本文鏈接：https://www.uj5u.com/houduan/146085.html

標籤：基礎類

上一篇：獲取當前瀏覽器的url

下一篇：LeetCode 1146. 快照陣列（哈希map + 有序map）