Submission #1192645

#	Time	Username	Problem	Language	Result	Execution time	Memory
1192645		JooDdae	Memory 2 (JOI16_memory2)	C++20	Compilation error	0 ms	0 KiB

memory2

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

void Solve(int T, int N) {
	int M = N+N;
	vector<vector<int>> q(M, vector<int>(M, -1));

	array<int, 2> v = {0, 1};
	q[0][1] = q[1][0] = Flip(0, 1);
	for(int i=2;i<M;i++) {
		auto [x, y] = v;
		q[x][i] = q[i][x] = Flip(x, i);
		q[y][i] = q[y][i] = Flip(y, i);

		if(q[x][i] == q[x][y]) v = {y, i};
		else if(q[y][i] == q[x][y]) v = {x, i};
	}
	Answer(v[0], v[1], N-1);

	vector<int> c(N, -1);
	for(int i=0;i<M;i++) if(i != v[0] && i != v[1]) {
		int u = Flip(i, v[0]);

		if(c[u] != -1) Answer(c[u], i, u);
		else c[u] = i;
	}
}

Compilation message (stderr)

memory2.cpp: In function 'void Solve(int, int)':
memory2.cpp:9:29: error: 'Flip' was not declared in this scope
    9 |         q[0][1] = q[1][0] = Flip(0, 1);
      |                             ^~~~
memory2.cpp:18:9: error: 'Answer' was not declared in this scope
   18 |         Answer(v[0], v[1], N-1);
      |         ^~~~~~