Submission #464168

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
464168	2021-08-12T13:24:27 Z	koioi.org-dennisstar	Chameleon's Love (JOI20_chameleon)	C++17	Compilation error	0 ms	0 KB

chameleon

#include "chameleon.h"
#include <bits/stdc++.h>

using namespace std;

void Solve(int n) {
	vector<vector<int>> adj(n+1);
	for (int i=1; i<n; i++) for (int j=i+1; j<=n; j++) {
		vector<int> v(2);
		v[0]=i, v[1]=j;
		if (Query(v)==1) adj[i].emplace_back(j), adj[j].emplace_back(i);
	}
	auto chk(int x, int y) = [&] {
		int f1=0, f2=0;
		vector<int> v(3);
		v[0]=x, v[1]=y;
		for (auto &i:adj[x]) if (i!=y) {
			v[2]=i;
			if (Query(v)==1) { f1=1; break; }
		}
		for (auto &i:adj[y]) if (i!=x) {
			v[2]=i;
			if (Query(v)==1) { f2=1; break; }
		}
		return f1&&f2;
	};
	for (int i=1; i<=n; i++) for (auto &j:adj[i]) if (chk(i, j)) {
		Answer(i, j);
		adj[j].clear();
		break;
	}
}

Compilation message

chameleon.cpp: In function 'void Solve(int)':
chameleon.cpp:13:23: warning: declaration of 'auto chk(int, int)' has 'extern' and is initialized
   13 |  auto chk(int x, int y) = [&] {
      |                       ^
chameleon.cpp:13:28: error: invalid pure specifier (only '= 0' is allowed) before '&' token
   13 |  auto chk(int x, int y) = [&] {
      |                            ^
chameleon.cpp:13:7: error: function 'auto chk(int, int)' is initialized like a variable
   13 |  auto chk(int x, int y) = [&] {
      |       ^~~
chameleon.cpp:27:60: error: use of 'auto chk(int, int)' before deduction of 'auto'
   27 |  for (int i=1; i<=n; i++) for (auto &j:adj[i]) if (chk(i, j)) {
      |                                                            ^