oj.uz

Submission #881964

# Submission time Handle Problem Language Result Execution time Memory
881964 2023-12-02T10:38:36 Z TAhmed33 Newspapers (CEOI21_newspapers) C++
54 / 100
 148 ms 6760 KB 
#include <bits/stdc++.h>
using namespace std;
const int MAXN = 1e3 + 25;
vector <int> adj[MAXN];
int n, m;
int dfs (int pos, int par, int dep = 0) {
	if (dep == 3) {
		return 1;
	}
	int cnt = 0;
	for (auto j : adj[pos]) if (j != par) cnt += dfs(j, pos, dep + 1);
	if (!dep) return cnt;
	return cnt >= 1;
}
int main () {
	cin >> n >> m;
	bool flag = 1;
	for (int i = 1; i <= m; i++) {
		int a, b;
		cin >> a >> b;
		if (a > b) swap(a, b);
		flag &= a + 1 == b;
		adj[a].push_back(b);
		adj[b].push_back(a);
	}
	if (m != n - 1) {
		cout << "NO\n";
		return 0;
	}
	if (flag) {
		cout << "YES\n";
		if (n == 1) {
			cout << "1\n1\n";
			return 0;
		}
		if (n == 2) {
			cout << "2\n2 2\n";
			return 0;
		}
		cout << 2 * (n - 2) << '\n';
		for (int i = 2; i < n; i++) cout << i << " ";
		for (int i = n - 1; i >= 2; i--) cout << i << " ";
		cout << '\n';
		return 0;
	}
	for (int i = 1; i <= n; i++) {
		if (dfs(i, -1) >= 3) {
			cout << "NO\n"; return 0;
		}
	}
	cout << "YES\n";
	cout << "1\n1\n";
}

Subtask #1
6.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Partially correct 0 ms 600 KB Failed to provide a successful strategy.
6 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
7 Correct 0 ms 348 KB Output is correct
8 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
9 Correct 0 ms 348 KB Output is correct
10 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
11 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
12 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
13 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
14 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
15 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
16 Partially correct 0 ms 344 KB Failed to provide a successful strategy.
17 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
18 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
19 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
20 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
21 Partially correct 1 ms 460 KB Failed to provide a successful strategy.
22 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
23 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
24 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
25 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
26 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
27 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
28 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
29 Correct 0 ms 348 KB Output is correct
30 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
31 Partially correct 0 ms 456 KB Failed to provide a successful strategy.
32 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
33 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
34 Correct 0 ms 348 KB Output is correct
35 Partially correct 0 ms 460 KB Failed to provide a successful strategy.
36 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
37 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
38 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
39 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
40 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
41 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
42 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
43 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
44 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
45 Correct 0 ms 348 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 1 ms 348 KB Output is correct
48 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
49 Correct 0 ms 348 KB Output is correct
50 Correct 0 ms 348 KB Output is correct
51 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
52 Correct 0 ms 348 KB Output is correct
53 Correct 0 ms 456 KB Output is correct
54 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
55 Correct 0 ms 348 KB Output is correct
56 Correct 0 ms 348 KB Output is correct
57 Correct 0 ms 348 KB Output is correct
58 Correct 0 ms 348 KB Output is correct
59 Correct 0 ms 348 KB Output is correct
60 Correct 0 ms 348 KB Output is correct
61 Correct 0 ms 348 KB Output is correct
62 Correct 0 ms 348 KB Output is correct
63 Correct 1 ms 348 KB Output is correct
64 Correct 1 ms 348 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 352 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 1 ms 344 KB Output is correct

Subtask #3
40.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Partially correct 0 ms 600 KB Failed to provide a successful strategy.
6 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
7 Correct 0 ms 348 KB Output is correct
8 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
9 Correct 0 ms 348 KB Output is correct
10 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
11 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
12 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
13 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
14 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
15 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
16 Partially correct 0 ms 344 KB Failed to provide a successful strategy.
17 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
18 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
19 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
20 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
21 Partially correct 1 ms 460 KB Failed to provide a successful strategy.
22 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
23 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
24 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
25 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
26 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
27 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
28 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
29 Correct 0 ms 348 KB Output is correct
30 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
31 Partially correct 0 ms 456 KB Failed to provide a successful strategy.
32 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
33 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
34 Correct 0 ms 348 KB Output is correct
35 Partially correct 0 ms 460 KB Failed to provide a successful strategy.
36 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
37 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
38 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
39 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
40 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
41 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
42 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
43 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
44 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
45 Correct 0 ms 348 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 1 ms 348 KB Output is correct
48 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
49 Correct 0 ms 348 KB Output is correct
50 Correct 0 ms 348 KB Output is correct
51 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
52 Correct 0 ms 348 KB Output is correct
53 Correct 0 ms 456 KB Output is correct
54 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
55 Correct 0 ms 348 KB Output is correct
56 Correct 0 ms 348 KB Output is correct
57 Correct 0 ms 348 KB Output is correct
58 Correct 0 ms 348 KB Output is correct
59 Correct 0 ms 348 KB Output is correct
60 Correct 0 ms 348 KB Output is correct
61 Correct 0 ms 348 KB Output is correct
62 Correct 0 ms 348 KB Output is correct
63 Correct 1 ms 348 KB Output is correct
64 Correct 1 ms 348 KB Output is correct
65 Correct 0 ms 348 KB Output is correct
66 Correct 1 ms 348 KB Output is correct
67 Correct 0 ms 348 KB Output is correct
68 Correct 0 ms 460 KB Output is correct
69 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
70 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
71 Correct 0 ms 600 KB Output is correct
72 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
73 Correct 0 ms 348 KB Output is correct
74 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
75 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
76 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
77 Partially correct 0 ms 348 KB Failed to provide a successful strategy.
78 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
79 Correct 1 ms 348 KB Output is correct
80 Correct 1 ms 348 KB Output is correct
81 Correct 1 ms 484 KB Output is correct
82 Correct 1 ms 344 KB Output is correct
83 Correct 1 ms 348 KB Output is correct
84 Correct 1 ms 348 KB Output is correct
85 Correct 1 ms 348 KB Output is correct
86 Correct 1 ms 348 KB Output is correct
87 Correct 1 ms 348 KB Output is correct
88 Correct 1 ms 348 KB Output is correct
89 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
90 Partially correct 1 ms 464 KB Failed to provide a successful strategy.
91 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
92 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
93 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
94 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
95 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
96 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
97 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
98 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
99 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
100 Partially correct 1 ms 460 KB Failed to provide a successful strategy.
101 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
102 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
103 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
104 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
105 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
106 Partially correct 1 ms 464 KB Failed to provide a successful strategy.
107 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
108 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
109 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
110 Partially correct 1 ms 652 KB Failed to provide a successful strategy.
111 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
112 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
113 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
114 Partially correct 1 ms 600 KB Failed to provide a successful strategy.
115 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
116 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
117 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
118 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
119 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
120 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
121 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
122 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
123 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
124 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
125 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
126 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
127 Partially correct 1 ms 348 KB Failed to provide a successful strategy.
128 Partially correct 1 ms 412 KB Failed to provide a successful strategy.
129 Correct 1 ms 348 KB Output is correct
130 Correct 1 ms 348 KB Output is correct
131 Correct 1 ms 348 KB Output is correct
132 Correct 1 ms 348 KB Output is correct
133 Correct 1 ms 348 KB Output is correct
134 Correct 32 ms 1940 KB Output is correct
135 Correct 23 ms 1628 KB Output is correct
136 Correct 64 ms 4856 KB Output is correct
137 Correct 41 ms 2900 KB Output is correct
138 Correct 72 ms 3928 KB Output is correct
139 Correct 132 ms 6760 KB Output is correct
140 Correct 18 ms 1372 KB Output is correct
141 Correct 6 ms 604 KB Output is correct
142 Correct 117 ms 6244 KB Output is correct
143 Correct 148 ms 6552 KB Output is correct
144 Correct 1 ms 348 KB Output is correct
145 Correct 1 ms 348 KB Output is correct