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Submission #572450

# Submission time Handle Problem Language Result Execution time Memory
572450 2022-06-04T11:51:56 Z valerikk Newspapers (CEOI21_newspapers) C++17
4 / 100
 1 ms 340 KB 
#include <bits/stdc++.h>

using namespace std;

int main() {
	ios::sync_with_stdio(false);
	cin.tie(0);

	int n, m;
	cin >> n >> m;

	for (int i = 0; i < m; ++i) {
		int u, v;
		cin >> u >> v;
	}

	if (m > n - 1) {
		cout << "NO\n";
		return 0;
	}

	cout << "YES\n";

	if (n == 1) {
		cout << "1\n1\n";
		return 0;
	}

	if (n == 2) {
		cout << "2\n1 1\n";
		return 0;
	}

	cout << 2 * n - 4 << "\n";
	for (int i = 2; i <= n - 1; ++i) {
		cout << i << " " << i << " ";
	}
	cout << "\n";
	return 0;
}

Subtask #1
0.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
4 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
5 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
6 Partially correct 0 ms 316 KB Failed to provide a successful strategy.
7 Correct 0 ms 212 KB Output is correct
8 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
9 Incorrect 0 ms 212 KB Output isn't correct
10 Halted 0 ms 0 KB -

Subtask #2
4.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
5 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
6 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
7 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
8 Partially correct 0 ms 316 KB Failed to provide a successful strategy.
9 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
10 Partially correct 1 ms 320 KB Failed to provide a successful strategy.
11 Partially correct 1 ms 340 KB Failed to provide a successful strategy.
12 Partially correct 1 ms 340 KB Failed to provide a successful strategy.
13 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
14 Partially correct 1 ms 340 KB Failed to provide a successful strategy.
15 Partially correct 1 ms 324 KB Failed to provide a successful strategy.
16 Partially correct 1 ms 340 KB Failed to provide a successful strategy.
17 Partially correct 1 ms 340 KB Failed to provide a successful strategy.
18 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
19 Partially correct 1 ms 340 KB Failed to provide a successful strategy.
20 Partially correct 1 ms 212 KB Failed to provide a successful strategy.

Subtask #3
0.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
4 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
5 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
6 Partially correct 0 ms 316 KB Failed to provide a successful strategy.
7 Correct 0 ms 212 KB Output is correct
8 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
9 Incorrect 0 ms 212 KB Output isn't correct
10 Halted 0 ms 0 KB -