Submission #946832

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
946832	2024-03-15T06:16:29 Z	Halym2007	Newspapers (CEOI21_newspapers)	C++17	54 / 100	152 ms	8268 KB

newspapers

#include <bits/stdc++.h>
using namespace std;
#define pb push_back
const int N = 1e3 + 5;
vector <int> v[N];
int uzyn[N], par[N], vis[N], bolonok, val, dia[N];
 
void dfs (int x, int pr) {
	for (int i : v[x]) {
		if (i == pr) continue;
		uzyn[i] = uzyn[x] + 1;
		par[i] = x;
		dfs (i, x);
	}
}
 
void barla (int x, int pr) {
//	cout << x << " " << pr << "\n"; 
	for (int i : v[x]) {
		if (i == pr) continue;
		if (vis[i]) continue;
		val++;
		if (val >= 3) {
			bolonok = 1;
		}
		barla (i, x);
		val--;
	}
}
 
 
int main () {
//	freopen ("input.txt", "r", stdin);
	int n, m, subtask1 = 0;
	cin >> n >> m;
	for (int i = 1; i <= m; ++i) {
		int l, r;
		cin >> l >> r;
		v[l].pb (r);
		v[r].pb (l);
		if (r - l != 1) subtask1 = 1;
	}
	if (m >= n) {
		cout << "NO\n";
	}
	else if (n <= 2) {
		cout << "YES\n";
		cout << n << "\n";
		for (int i = 1; i <= n; ++i) {
			cout << n << " ";
		}
	}
	else if (!subtask1) {
		cout << "YES\n";
		cout << 2*n - 4 << "\n";
		for (int i = 2; i < n; ++i) {
			cout << i << " ";
		}
		for (int i = n - 1; i > 1; i--) {
			cout << i << " ";
		}
	}
	else {
		dfs (1, -1);
		int a = 0;
		for (int i = 1; i <= n; ++i) {
			if (uzyn[a] < uzyn[i]) a = i;
 		}
 		uzyn[a] = 0;
 		par[a] = -1;
 		dfs (a, -1);
 		int b = 0;
 		for (int i = 1; i <= n; ++i) {
 			if (uzyn[b] < uzyn[i]) b = i;
		}
		int x = b;
		while (x != -1) {
			vis[x] = 1;
			x = par[x];
		}
		for (int i = 1; i <= n; ++i) {
			if (vis[i]) {
				val = 0;
				barla(i, -1);
			}
		}
		if (bolonok) cout << "NO";
		else {
			cout << "YES\n";
			cout << n << "\n";
			for (int i = 1; i <= n; ++i) cout << i << " ";
		}
		cout << "\n";
	}
}

Subtask #1

6.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	464 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	344 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Partially correct	0 ms	348 KB	Failed to provide a successful strategy.
6	Partially correct	0 ms	428 KB	Failed to provide a successful strategy.
7	Correct	0 ms	348 KB	Output is correct
8	Partially correct	0 ms	344 KB	Failed to provide a successful strategy.
9	Correct	1 ms	348 KB	Output is correct
10	Partially correct	0 ms	460 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	0 ms	348 KB	Failed to provide a successful strategy.
14	Partially correct	0 ms	348 KB	Failed to provide a successful strategy.
15	Partially correct	1 ms	348 KB	Failed to provide a successful strategy.
16	Partially correct	1 ms	348 KB	Failed to provide a successful strategy.
17	Partially correct	1 ms	344 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	1 ms	344 KB	Failed to provide a successful strategy.
21	Partially correct	0 ms	344 KB	Failed to provide a successful strategy.
22	Partially correct	0 ms	344 KB	Failed to provide a successful strategy.
23	Partially correct	0 ms	344 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	344 KB	Failed to provide a successful strategy.
28	Partially correct	0 ms	348 KB	Failed to provide a successful strategy.
29	Correct	1 ms	348 KB	Output is correct
30	Partially correct	1 ms	348 KB	Failed to provide a successful strategy.
31	Partially correct	1 ms	604 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	344 KB	Failed to provide a successful strategy.
34	Correct	0 ms	344 KB	Output is correct
35	Partially correct	0 ms	344 KB	Failed to provide a successful strategy.
36	Partially correct	1 ms	344 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	600 KB	Failed to provide a successful strategy.
40	Partially correct	1 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	464 KB	Failed to provide a successful strategy.
44	Partially correct	1 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	0 ms	348 KB	Output is correct
48	Partially correct	0 ms	348 KB	Failed to provide a successful strategy.
49	Correct	1 ms	344 KB	Output is correct
50	Correct	1 ms	604 KB	Output is correct
51	Partially correct	1 ms	344 KB	Failed to provide a successful strategy.
52	Correct	1 ms	348 KB	Output is correct
53	Correct	0 ms	348 KB	Output is correct
54	Partially correct	0 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	1 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	464 KB	Output is correct
64	Correct	0 ms	344 KB	Output is correct

Subtask #2

8.0 / 8.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	344 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	344 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	396 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	344 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	472 KB	Output is correct
16	Correct	1 ms	432 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	348 KB	Output is correct
20	Correct	1 ms	348 KB	Output is correct

Subtask #3

40.0 / 80.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	464 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	344 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Partially correct	0 ms	348 KB	Failed to provide a successful strategy.
6	Partially correct	0 ms	428 KB	Failed to provide a successful strategy.
7	Correct	0 ms	348 KB	Output is correct
8	Partially correct	0 ms	344 KB	Failed to provide a successful strategy.
9	Correct	1 ms	348 KB	Output is correct
10	Partially correct	0 ms	460 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	0 ms	348 KB	Failed to provide a successful strategy.
14	Partially correct	0 ms	348 KB	Failed to provide a successful strategy.
15	Partially correct	1 ms	348 KB	Failed to provide a successful strategy.
16	Partially correct	1 ms	348 KB	Failed to provide a successful strategy.
17	Partially correct	1 ms	344 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	1 ms	344 KB	Failed to provide a successful strategy.
21	Partially correct	0 ms	344 KB	Failed to provide a successful strategy.
22	Partially correct	0 ms	344 KB	Failed to provide a successful strategy.
23	Partially correct	0 ms	344 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	344 KB	Failed to provide a successful strategy.
28	Partially correct	0 ms	348 KB	Failed to provide a successful strategy.
29	Correct	1 ms	348 KB	Output is correct
30	Partially correct	1 ms	348 KB	Failed to provide a successful strategy.
31	Partially correct	1 ms	604 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	344 KB	Failed to provide a successful strategy.
34	Correct	0 ms	344 KB	Output is correct
35	Partially correct	0 ms	344 KB	Failed to provide a successful strategy.
36	Partially correct	1 ms	344 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	600 KB	Failed to provide a successful strategy.
40	Partially correct	1 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	464 KB	Failed to provide a successful strategy.
44	Partially correct	1 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	0 ms	348 KB	Output is correct
48	Partially correct	0 ms	348 KB	Failed to provide a successful strategy.
49	Correct	1 ms	344 KB	Output is correct
50	Correct	1 ms	604 KB	Output is correct
51	Partially correct	1 ms	344 KB	Failed to provide a successful strategy.
52	Correct	1 ms	348 KB	Output is correct
53	Correct	0 ms	348 KB	Output is correct
54	Partially correct	0 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	1 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	464 KB	Output is correct
64	Correct	0 ms	344 KB	Output is correct
65	Correct	0 ms	348 KB	Output is correct
66	Correct	0 ms	348 KB	Output is correct
67	Correct	0 ms	344 KB	Output is correct
68	Correct	0 ms	348 KB	Output is correct
69	Partially correct	1 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	348 KB	Output is correct
72	Partially correct	0 ms	348 KB	Failed to provide a successful strategy.
73	Correct	1 ms	348 KB	Output is correct
74	Partially correct	0 ms	348 KB	Failed to provide a successful strategy.
75	Partially correct	0 ms	600 KB	Failed to provide a successful strategy.
76	Partially correct	0 ms	344 KB	Failed to provide a successful strategy.
77	Partially correct	0 ms	344 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	348 KB	Output is correct
82	Correct	1 ms	348 KB	Output is correct
83	Correct	1 ms	348 KB	Output is correct
84	Correct	1 ms	344 KB	Output is correct
85	Correct	1 ms	348 KB	Output is correct
86	Correct	1 ms	344 KB	Output is correct
87	Correct	1 ms	348 KB	Output is correct
88	Correct	1 ms	344 KB	Output is correct
89	Partially correct	1 ms	348 KB	Failed to provide a successful strategy.
90	Partially correct	1 ms	344 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	344 KB	Failed to provide a successful strategy.
93	Partially correct	1 ms	344 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	604 KB	Failed to provide a successful strategy.
98	Partially correct	1 ms	344 KB	Failed to provide a successful strategy.
99	Partially correct	1 ms	600 KB	Failed to provide a successful strategy.
100	Partially correct	1 ms	348 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	600 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	344 KB	Failed to provide a successful strategy.
107	Partially correct	1 ms	344 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	344 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	348 KB	Failed to provide a successful strategy.
115	Partially correct	1 ms	344 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	600 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	344 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	344 KB	Failed to provide a successful strategy.
128	Partially correct	1 ms	348 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	30 ms	1872 KB	Output is correct
135	Correct	25 ms	1880 KB	Output is correct
136	Correct	67 ms	5440 KB	Output is correct
137	Correct	45 ms	3664 KB	Output is correct
138	Correct	79 ms	4828 KB	Output is correct
139	Correct	136 ms	8016 KB	Output is correct
140	Correct	19 ms	1436 KB	Output is correct
141	Correct	7 ms	860 KB	Output is correct
142	Correct	124 ms	7508 KB	Output is correct
143	Correct	152 ms	8268 KB	Output is correct
144	Correct	1 ms	344 KB	Output is correct
145	Correct	1 ms	348 KB	Output is correct