답안 #590944

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
590944	2022-07-06T15:15:40 Z	cheissmart	Newspapers (CEOI21_newspapers)	C++14	50 / 100	1 ms	400 KB

newspapers

#include <bits/stdc++.h>
#define IO_OP std::ios::sync_with_stdio(0); std::cin.tie(0);
#define F first
#define S second
#define V vector
#define PB push_back
#define EB emplace_back
#define MP make_pair
#define SZ(v) int((v).size())
#define ALL(v) (v).begin(), (v).end()

using namespace std;

typedef long long ll;
typedef pair<int, int> pi;
typedef V<int> vi;

string _reset = "\u001b[0m", _yellow = "\u001b[33m", _bold = "\u001b[1m";
void DBG() { cerr << "]" << _reset << endl; }
template<class H, class...T> void DBG(H h, T ...t) {
	cerr << to_string(h);
	if(sizeof ...(t)) cerr << ", ";
	DBG(t...);
}
#ifdef CHEISSMART
#define debug(...) cerr << _yellow << _bold << "Line(" << __LINE__ << ") -> [" << #__VA_ARGS__ << "]: [", DBG(__VA_ARGS__)
#else
#define debug(...)
#endif

const int INF = 1e9 + 7, N = 1003;

vi G[N];
int d[N], p[N];
bool onpath[N];

void dfs(int u, int pa = -1, int depth = 0) {
	d[u] = depth, p[u] = pa;
	for(int v:G[u]) if(v != pa)
		dfs(v, u, depth + 1);
}

int mx_depth(int u, int pa) {
	int mx = 0;
	for(int v:G[u]) if(v != pa)
		mx = max(mx, mx_depth(v, u) + 1);
	return mx;
}

signed main()
{
	IO_OP;

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

	if(m != n - 1) {
		cout << "NO" << '\n';
		return 0;
	}
	if(n == 1) {
		cout << "YES\n" << 1 << "\n" << 1 << '\n';
		return 0;
	}
	if(n == 2) {
		cout << "YES\n" << 2 << '\n' << "1 1\n";
		return 0;
	}

	for(int i = 0; i < m; i++) {
		int u, v;
		cin >> u >> v;
		G[u].PB(v);
		G[v].PB(u);
	}

	dfs(1);
	int s = max_element(d + 1, d + n + 1) - d;
	dfs(s);
	int t = max_element(d + 1, d + n + 1) - d;

	vi path;
	while(SZ(path) == 0 || path.back() != s) {
		path.PB(t);
		onpath[t] = true;
		t = p[t];
	}
	assert(SZ(path) >= 3);
	vi ans;

	for(int i = 1; i < SZ(path) - 1; i++) {
		int u = path[i];
		vi aux;
		for(int v:G[u]) if(!onpath[v]) {
			int tt = mx_depth(v, u);
			if(tt > 1) {
				cout << "NO\n";
				return 0;
			}
			if(tt == 1)
				aux.PB(v);
		}
		if(aux.empty()) {
			ans.PB(u);
		} else {
			for(int v:aux) {
				ans.PB(u), ans.PB(v), ans.PB(u);
			}
		}
	}

	ans.PB(path[SZ(path) - 2]);

	cout << "YES\n";
	cout << SZ(ans) << '\n';
	for(int u:ans) cout << u << " ";
	cout << '\n';

}

Subtask #1
6.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	340 KB	Output is correct
2	Correct	0 ms	340 KB	Output is correct
3	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
4	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
5	Correct	0 ms	340 KB	Output is correct
6	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
7	Correct	0 ms	340 KB	Output is correct
8	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
9	Correct	0 ms	340 KB	Output is correct
10	Partially correct	0 ms	340 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	340 KB	Failed to provide a successful strategy.
14	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
15	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
16	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
17	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
18	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
19	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
20	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
21	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
22	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
23	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
24	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
25	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
26	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
27	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
28	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
29	Correct	0 ms	340 KB	Output is correct
30	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
31	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
32	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
33	Partially correct	1 ms	340 KB	Failed to provide a successful strategy.
34	Correct	0 ms	340 KB	Output is correct
35	Partially correct	1 ms	340 KB	Failed to provide a successful strategy.
36	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
37	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
38	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
39	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
40	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
41	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
42	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
43	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
44	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
45	Correct	0 ms	340 KB	Output is correct
46	Correct	0 ms	340 KB	Output is correct
47	Correct	0 ms	340 KB	Output is correct
48	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
49	Correct	0 ms	340 KB	Output is correct
50	Correct	0 ms	340 KB	Output is correct
51	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
52	Correct	0 ms	340 KB	Output is correct
53	Correct	0 ms	340 KB	Output is correct
54	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
55	Correct	0 ms	340 KB	Output is correct
56	Correct	0 ms	340 KB	Output is correct
57	Correct	0 ms	340 KB	Output is correct
58	Correct	0 ms	340 KB	Output is correct
59	Correct	0 ms	340 KB	Output is correct
60	Correct	0 ms	340 KB	Output is correct
61	Correct	0 ms	340 KB	Output is correct
62	Correct	0 ms	340 KB	Output is correct
63	Correct	0 ms	340 KB	Output is correct
64	Correct	0 ms	340 KB	Output is correct

Subtask #2
4.0 / 8.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	340 KB	Output is correct
2	Correct	0 ms	340 KB	Output is correct
3	Correct	0 ms	340 KB	Output is correct
4	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
5	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
6	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
7	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
8	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
9	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
10	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
11	Partially correct	1 ms	340 KB	Failed to provide a successful strategy.
12	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
13	Partially correct	1 ms	340 KB	Failed to provide a successful strategy.
14	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
15	Partially correct	1 ms	340 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	340 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	340 KB	Failed to provide a successful strategy.

Subtask #3
40.0 / 80.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	340 KB	Output is correct
2	Correct	0 ms	340 KB	Output is correct
3	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
4	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
5	Correct	0 ms	340 KB	Output is correct
6	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
7	Correct	0 ms	340 KB	Output is correct
8	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
9	Correct	0 ms	340 KB	Output is correct
10	Partially correct	0 ms	340 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	340 KB	Failed to provide a successful strategy.
14	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
15	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
16	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
17	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
18	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
19	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
20	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
21	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
22	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
23	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
24	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
25	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
26	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
27	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
28	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
29	Correct	0 ms	340 KB	Output is correct
30	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
31	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
32	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
33	Partially correct	1 ms	340 KB	Failed to provide a successful strategy.
34	Correct	0 ms	340 KB	Output is correct
35	Partially correct	1 ms	340 KB	Failed to provide a successful strategy.
36	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
37	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
38	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
39	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
40	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
41	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
42	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
43	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
44	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
45	Correct	0 ms	340 KB	Output is correct
46	Correct	0 ms	340 KB	Output is correct
47	Correct	0 ms	340 KB	Output is correct
48	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
49	Correct	0 ms	340 KB	Output is correct
50	Correct	0 ms	340 KB	Output is correct
51	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
52	Correct	0 ms	340 KB	Output is correct
53	Correct	0 ms	340 KB	Output is correct
54	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
55	Correct	0 ms	340 KB	Output is correct
56	Correct	0 ms	340 KB	Output is correct
57	Correct	0 ms	340 KB	Output is correct
58	Correct	0 ms	340 KB	Output is correct
59	Correct	0 ms	340 KB	Output is correct
60	Correct	0 ms	340 KB	Output is correct
61	Correct	0 ms	340 KB	Output is correct
62	Correct	0 ms	340 KB	Output is correct
63	Correct	0 ms	340 KB	Output is correct
64	Correct	0 ms	340 KB	Output is correct
65	Correct	1 ms	340 KB	Output is correct
66	Correct	0 ms	340 KB	Output is correct
67	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
68	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
69	Correct	0 ms	340 KB	Output is correct
70	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
71	Correct	0 ms	340 KB	Output is correct
72	Partially correct	1 ms	340 KB	Failed to provide a successful strategy.
73	Correct	0 ms	340 KB	Output is correct
74	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
75	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
76	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
77	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
78	Partially correct	0 ms	340 KB	Failed to provide a successful strategy.
79	Correct	0 ms	340 KB	Output is correct
80	Correct	1 ms	340 KB	Output is correct
81	Correct	1 ms	340 KB	Output is correct
82	Correct	1 ms	340 KB	Output is correct
83	Correct	0 ms	340 KB	Output is correct
84	Correct	1 ms	340 KB	Output is correct
85	Correct	1 ms	340 KB	Output is correct
86	Correct	0 ms	340 KB	Output is correct
87	Correct	1 ms	340 KB	Output is correct
88	Correct	1 ms	340 KB	Output is correct
89	Partially correct	1 ms	340 KB	Failed to provide a successful strategy.
90	Partially correct	1 ms	340 KB	Failed to provide a successful strategy.
91	Partially correct	1 ms	340 KB	Failed to provide a successful strategy.
92	Partially correct	1 ms	340 KB	Failed to provide a successful strategy.
93	Partially correct	1 ms	340 KB	Failed to provide a successful strategy.
94	Partially correct	1 ms	340 KB	Failed to provide a successful strategy.
95	Partially correct	1 ms	340 KB	Failed to provide a successful strategy.
96	Partially correct	1 ms	340 KB	Failed to provide a successful strategy.
97	Partially correct	1 ms	340 KB	Failed to provide a successful strategy.
98	Partially correct	1 ms	340 KB	Failed to provide a successful strategy.
99	Partially correct	1 ms	340 KB	Failed to provide a successful strategy.
100	Partially correct	1 ms	340 KB	Failed to provide a successful strategy.
101	Partially correct	1 ms	340 KB	Failed to provide a successful strategy.
102	Partially correct	1 ms	340 KB	Failed to provide a successful strategy.
103	Partially correct	1 ms	340 KB	Failed to provide a successful strategy.
104	Partially correct	1 ms	340 KB	Failed to provide a successful strategy.
105	Partially correct	1 ms	340 KB	Failed to provide a successful strategy.
106	Partially correct	1 ms	340 KB	Failed to provide a successful strategy.
107	Partially correct	1 ms	340 KB	Failed to provide a successful strategy.
108	Partially correct	1 ms	340 KB	Failed to provide a successful strategy.
109	Partially correct	1 ms	340 KB	Failed to provide a successful strategy.
110	Partially correct	1 ms	340 KB	Failed to provide a successful strategy.
111	Partially correct	1 ms	340 KB	Failed to provide a successful strategy.
112	Partially correct	1 ms	340 KB	Failed to provide a successful strategy.
113	Partially correct	1 ms	340 KB	Failed to provide a successful strategy.
114	Partially correct	1 ms	340 KB	Failed to provide a successful strategy.
115	Partially correct	1 ms	340 KB	Failed to provide a successful strategy.
116	Partially correct	1 ms	340 KB	Failed to provide a successful strategy.
117	Partially correct	1 ms	340 KB	Failed to provide a successful strategy.
118	Partially correct	1 ms	340 KB	Failed to provide a successful strategy.
119	Partially correct	1 ms	340 KB	Failed to provide a successful strategy.
120	Partially correct	1 ms	400 KB	Failed to provide a successful strategy.
121	Partially correct	1 ms	340 KB	Failed to provide a successful strategy.
122	Partially correct	1 ms	340 KB	Failed to provide a successful strategy.
123	Partially correct	1 ms	340 KB	Failed to provide a successful strategy.
124	Partially correct	1 ms	340 KB	Failed to provide a successful strategy.
125	Partially correct	1 ms	340 KB	Failed to provide a successful strategy.
126	Partially correct	1 ms	340 KB	Failed to provide a successful strategy.
127	Partially correct	1 ms	340 KB	Failed to provide a successful strategy.
128	Partially correct	1 ms	340 KB	Failed to provide a successful strategy.
129	Correct	1 ms	340 KB	Output is correct
130	Correct	0 ms	340 KB	Output is correct
131	Correct	1 ms	340 KB	Output is correct
132	Correct	1 ms	340 KB	Output is correct
133	Correct	1 ms	340 KB	Output is correct
134	Correct	1 ms	340 KB	Output is correct
135	Correct	0 ms	340 KB	Output is correct
136	Correct	0 ms	340 KB	Output is correct
137	Correct	0 ms	340 KB	Output is correct
138	Correct	0 ms	340 KB	Output is correct
139	Correct	0 ms	340 KB	Output is correct
140	Correct	0 ms	340 KB	Output is correct
141	Correct	0 ms	340 KB	Output is correct
142	Correct	0 ms	340 KB	Output is correct
143	Correct	0 ms	340 KB	Output is correct
144	Partially correct	1 ms	340 KB	Failed to provide a successful strategy.
145	Partially correct	1 ms	340 KB	Failed to provide a successful strategy.

답안 #590944

Compilation message

Subtask #1 6.0 / 12.0

Subtask #2 4.0 / 8.0

Subtask #3 40.0 / 80.0

Subtask #1
6.0 / 12.0

Subtask #2
4.0 / 8.0

Subtask #3
40.0 / 80.0