Submission #823074

#	Time	Username	Problem	Language	Result	Execution time	Memory
823074		Sohsoh84	Carnival Tickets (IOI20_tickets)	C++17	Compilation error	0 ms	0 KiB

tickets

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

using namespace std;

const int MAXN = 1e5 + 10;

int f[MAXN], sz[MAXN], L[MAXN];

int construct(vector<vector<int>> p) {
	int n = p.size();
	vector<vector<int>> answer;
	for (int i = 0; i < n; i++) {
		vector<int> row;
		row.resize(n, 0);
		answer.push_back(row);
	}

	for (int i = 1; i < n; i++) {
		int lst = i;
		for (int j = 0; j < i; j++)
			if (p[i][j])
				if (lst == i) lst = j;

		f[i] = i;
		f[i] = f[lst];
		L[f[i]] = i;
		sz[f[i]]++;

		if (lst < i) answer[i][lst] = answer[lst][i] = 1;
	}

	for (int i = 0; i < n; i++)
		for (int j = i + 1; j < n; j++)
			if (p[i][j] ^ (f[i] == f[j]))
				return 0;

	for (int i = 0; i < n; i++) {
		if (sz[i] == 1 || sz[i] == 2)
			return 0;
	
		if (sz[i])
			answer[L[i]][i] = answer[i][L[i]] = 1;
	}

	build(answer);
	return 1;
}

Compilation message (stderr)

tickets.cpp:1:10: fatal error: supertrees.h: No such file or directory
    1 | #include "supertrees.h"
      |          ^~~~~~~~~~~~~~
compilation terminated.