제출 #1209923

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1209923		PlayVoltz	Easter Eggs (info1cup17_eastereggs)	C++20	컴파일 에러	0 ms	0 KiB

eastereggs

#include <bits/stdc++.h>
#include "grader.h"
using namespace std;

#define pii pair<int, int>
#define mp make_pair
#define pb push_back
#define fi first
#define se second

vector<int> ord;
vector<vector<int> > graph;

void dfs(int node, int p){
	ord.pb(node);
	for (auto num:graph[node])if (num!=par)dfs(num, node);
}

int findEgg (int n, vector<pii> edges){
	graph.clear();
	ord.clear();
	graph.resize(n+1);
	for (auto c:edges){
		graph[c.fi].pb(c.se);
		graph[c.se].pb(c.fi);
	}
	dfs(1, -1);
	int low=0, high=n;
	while (low+1<high){
		int mid=(low+high)/2;
		vector<int> temp;
		for (int i=0; i<mid)temp.pb(ord[i]);
		if (query(temp))high=mid;
		else low=mid;
	}
	return ord[high-1];
}

컴파일 시 표준 에러 (stderr) 메시지

eastereggs.cpp: In function 'void dfs(int, int)':
eastereggs.cpp:16:44: error: 'par' was not declared in this scope; did you mean '__pstl::execution::v1::par'?
   16 |         for (auto num:graph[node])if (num!=par)dfs(num, node);
      |                                            ^~~
      |                                            __pstl::execution::v1::par
In file included from /usr/include/c++/11/pstl/glue_algorithm_defs.h:15,
                 from /usr/include/c++/11/algorithm:74,
                 from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:65,
                 from eastereggs.cpp:1:
/usr/include/c++/11/pstl/execution_defs.h:111:27: note: '__pstl::execution::v1::par' declared here
  111 | constexpr parallel_policy par{};
      |                           ^~~
eastereggs.cpp: In function 'int findEgg(int, std::vector<std::pair<int, int> >)':
eastereggs.cpp:32:36: error: expected ';' before ')' token
   32 |                 for (int i=0; i<mid)temp.pb(ord[i]);
      |                                    ^
      |                                    ;