제출 #1355988

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1355988		FaresSTH	악어의 지하 도시 (IOI11_crocodile)	C++20	컴파일 에러	0 ms	0 KiB

crocodile

#include"bits/stdc++.h"
using namespace std;
using ll=long long;
#define S second
#define F first
const int mxn=1001;
vector<pair<int,int>>g[mxn];
bool ex[mxn];
int dfs(int i,int p){
	if(ex[i])return 0;
	int mn[]={(int)2e9,(int)2e9};
	for(auto j:g[i]){
		if(j.F==p)continue;
		int val=j.S+dfs(j.F,i);
		if(val<=mn[0]){
			mn[1]=mn[0];
			mn[0]=val;
		}
		else if(val<mn[1])mn[1]=val;
	}
	return mn[1];
}
int travel_plan(int n,int m,int r[][2],int l[],int k,int p[]){
	for(int i=0;i<m;i++){
		g[r[i][0]].push_back({r[i][1],l[i]});
		g[r[i][1]].push_back({r[i][0],l[i]});
	}
	for(int i:p)ex[i]=1;
	return dfs(0,0);
}

컴파일 시 표준 에러 (stderr) 메시지

crocodile.cpp: In function 'int travel_plan(int, int, int (*)[2], int*, int, int*)':
crocodile.cpp:28:19: error: 'begin' was not declared in this scope
   28 |         for(int i:p)ex[i]=1;
      |                   ^
crocodile.cpp:28:19: note: suggested alternatives:
In file included from /usr/include/x86_64-linux-gnu/c++/13/bits/stdc++.h:166,
                 from crocodile.cpp:1:
/usr/include/c++/13/valarray:1238:5: note:   'std::begin'
 1238 |     begin(const valarray<_Tp>& __va) noexcept
      |     ^~~~~
In file included from /usr/include/c++/13/bits/ranges_algobase.h:38,
                 from /usr/include/c++/13/bits/ranges_algo.h:38,
                 from /usr/include/c++/13/algorithm:63,
                 from /usr/include/x86_64-linux-gnu/c++/13/bits/stdc++.h:51:
/usr/include/c++/13/bits/ranges_base.h:489:44: note:   'std::ranges::__cust::begin'
  489 |     inline constexpr __cust_access::_Begin begin{};
      |                                            ^~~~~
In file included from /usr/include/c++/13/filesystem:50,
                 from /usr/include/x86_64-linux-gnu/c++/13/bits/stdc++.h:200:
/usr/include/c++/13/bits/fs_dir.h:607:3: note:   'std::filesystem::__cxx11::begin'
  607 |   begin(recursive_directory_iterator __iter) noexcept
      |   ^~~~~
In file included from /usr/include/c++/13/bits/stl_iterator_base_types.h:71,
                 from /usr/include/c++/13/bits/stl_algobase.h:65,
                 from /usr/include/c++/13/algorithm:60:
/usr/include/c++/13/bits/iterator_concepts.h:984:10: note:   'std::ranges::__cust_access::begin'
  984 |     void begin(const auto&) = delete;
      |          ^~~~~
crocodile.cpp:28:19: error: 'end' was not declared in this scope
   28 |         for(int i:p)ex[i]=1;
      |                   ^
crocodile.cpp:28:19: note: suggested alternatives:
/usr/include/c++/13/valarray:1265:5: note:   'std::end'
 1265 |     end(const valarray<_Tp>& __va) noexcept
      |     ^~~
/usr/include/c++/13/bits/ranges_base.h:490:42: note:   'std::ranges::__cust::end'
  490 |     inline constexpr __cust_access::_End end{};
      |                                          ^~~
/usr/include/c++/13/bits/fs_dir.h:612:3: note:   'std::filesystem::__cxx11::end'
  612 |   end(recursive_directory_iterator) noexcept
      |   ^~~
/usr/include/c++/13/bits/ranges_base.h:137:10: note:   'std::ranges::__cust_access::end'
  137 |     void end(const auto&) = delete;
      |          ^~~