oj.uz

Submission #948027

# Submission time Handle Problem Language Result Execution time Memory
948027 2024-03-17T13:45:48 Z Darren0724 Newspapers (CEOI21_newspapers) C++17
50 / 100
 29 ms 11612 KB 
#include <bits/stdc++.h>
using namespace std;
#define LCBorz ios_base::sync_with_stdio(false); cin.tie(0);
#define int long long
#define all(x) x.begin(), x.end()
#define endl '\n'
const int N=200005;
const int INF=1e18;
vector<int> adj[N],vis(N),a[N];

void dfs(int k,int pa,int deep){
    vis[k]=1;
    a[k].push_back(deep);
    for(int j:adj[k]){
        if(j==pa)continue;
        dfs(j,k,deep+1);
        a[k].push_back(a[j][0]);
    }
    sort(all(a[k]),greater<int>());
}
int32_t main() {
    LCBorz;
    int n,m;cin>>n>>m;
    if(m>=n){
        cout<<"NO"<<endl;
        return 0;
    }
    if(n==1){
        cout<<"YES\n1\n1\n";
        return 0;
    }
    if(n==2){
        cout<<"YES\n2\n1 1\n";
        return 0;
    }
    for(int i=1;i<n;i++){
        int a,b;cin>>a>>b;
        adj[a].push_back(b);
        adj[b].push_back(a);
    }
    for(int i=1;i<=n;i++){
        for(int j=1;j<=n;j++){
            a[j].clear();
        }
        dfs(i,i,0);
        if(a[i].size()<3){
            continue;
        }
        if(a[i][2]>=3){
            cout<<"NO"<<endl;
            return 0;
        }
    }
    cout<<"YES\n1\n1";

    return 0;
}

Subtask #1
6.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 11356 KB Output is correct
2 Correct 4 ms 11356 KB Output is correct
3 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
4 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
5 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
6 Partially correct 6 ms 11356 KB Failed to provide a successful strategy.
7 Correct 3 ms 11352 KB Output is correct
8 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
9 Correct 3 ms 11352 KB Output is correct
10 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
11 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
12 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
13 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
14 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
15 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
16 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
17 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
18 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
19 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
20 Partially correct 4 ms 11356 KB Failed to provide a successful strategy.
21 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
22 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
23 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
24 Partially correct 3 ms 11216 KB Failed to provide a successful strategy.
25 Partially correct 4 ms 11356 KB Failed to provide a successful strategy.
26 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
27 Partially correct 3 ms 11352 KB Failed to provide a successful strategy.
28 Partially correct 3 ms 11352 KB Failed to provide a successful strategy.
29 Correct 3 ms 11356 KB Output is correct
30 Partially correct 4 ms 11588 KB Failed to provide a successful strategy.
31 Partially correct 3 ms 11392 KB Failed to provide a successful strategy.
32 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
33 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
34 Correct 3 ms 11356 KB Output is correct
35 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
36 Partially correct 3 ms 11352 KB Failed to provide a successful strategy.
37 Partially correct 4 ms 11352 KB Failed to provide a successful strategy.
38 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
39 Partially correct 4 ms 11356 KB Failed to provide a successful strategy.
40 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
41 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
42 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
43 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
44 Partially correct 3 ms 11608 KB Failed to provide a successful strategy.
45 Correct 3 ms 11356 KB Output is correct
46 Correct 4 ms 11356 KB Output is correct
47 Correct 4 ms 11356 KB Output is correct
48 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
49 Correct 3 ms 11356 KB Output is correct
50 Correct 3 ms 11356 KB Output is correct
51 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
52 Correct 3 ms 11356 KB Output is correct
53 Correct 3 ms 11356 KB Output is correct
54 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
55 Correct 3 ms 11356 KB Output is correct
56 Correct 3 ms 11356 KB Output is correct
57 Correct 3 ms 11356 KB Output is correct
58 Correct 3 ms 11608 KB Output is correct
59 Correct 3 ms 11356 KB Output is correct
60 Correct 4 ms 11356 KB Output is correct
61 Correct 3 ms 11356 KB Output is correct
62 Correct 3 ms 11356 KB Output is correct
63 Correct 3 ms 11356 KB Output is correct
64 Correct 4 ms 11356 KB Output is correct

Subtask #2
4.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 11356 KB Output is correct
2 Correct 3 ms 11356 KB Output is correct
3 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
4 Partially correct 4 ms 11352 KB Failed to provide a successful strategy.
5 Partially correct 4 ms 11608 KB Failed to provide a successful strategy.
6 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
7 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
8 Partially correct 4 ms 11356 KB Failed to provide a successful strategy.
9 Partially correct 3 ms 11352 KB Failed to provide a successful strategy.
10 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
11 Partially correct 17 ms 11612 KB Failed to provide a successful strategy.
12 Partially correct 9 ms 11612 KB Failed to provide a successful strategy.
13 Partially correct 9 ms 11356 KB Failed to provide a successful strategy.
14 Partially correct 10 ms 11540 KB Failed to provide a successful strategy.
15 Partially correct 12 ms 11356 KB Failed to provide a successful strategy.
16 Partially correct 19 ms 11612 KB Failed to provide a successful strategy.
17 Partially correct 20 ms 11612 KB Failed to provide a successful strategy.
18 Partially correct 18 ms 11436 KB Failed to provide a successful strategy.
19 Partially correct 23 ms 11608 KB Failed to provide a successful strategy.
20 Partially correct 24 ms 11612 KB Failed to provide a successful strategy.

Subtask #3
40.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 11356 KB Output is correct
2 Correct 4 ms 11356 KB Output is correct
3 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
4 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
5 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
6 Partially correct 6 ms 11356 KB Failed to provide a successful strategy.
7 Correct 3 ms 11352 KB Output is correct
8 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
9 Correct 3 ms 11352 KB Output is correct
10 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
11 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
12 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
13 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
14 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
15 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
16 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
17 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
18 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
19 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
20 Partially correct 4 ms 11356 KB Failed to provide a successful strategy.
21 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
22 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
23 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
24 Partially correct 3 ms 11216 KB Failed to provide a successful strategy.
25 Partially correct 4 ms 11356 KB Failed to provide a successful strategy.
26 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
27 Partially correct 3 ms 11352 KB Failed to provide a successful strategy.
28 Partially correct 3 ms 11352 KB Failed to provide a successful strategy.
29 Correct 3 ms 11356 KB Output is correct
30 Partially correct 4 ms 11588 KB Failed to provide a successful strategy.
31 Partially correct 3 ms 11392 KB Failed to provide a successful strategy.
32 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
33 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
34 Correct 3 ms 11356 KB Output is correct
35 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
36 Partially correct 3 ms 11352 KB Failed to provide a successful strategy.
37 Partially correct 4 ms 11352 KB Failed to provide a successful strategy.
38 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
39 Partially correct 4 ms 11356 KB Failed to provide a successful strategy.
40 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
41 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
42 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
43 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
44 Partially correct 3 ms 11608 KB Failed to provide a successful strategy.
45 Correct 3 ms 11356 KB Output is correct
46 Correct 4 ms 11356 KB Output is correct
47 Correct 4 ms 11356 KB Output is correct
48 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
49 Correct 3 ms 11356 KB Output is correct
50 Correct 3 ms 11356 KB Output is correct
51 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
52 Correct 3 ms 11356 KB Output is correct
53 Correct 3 ms 11356 KB Output is correct
54 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
55 Correct 3 ms 11356 KB Output is correct
56 Correct 3 ms 11356 KB Output is correct
57 Correct 3 ms 11356 KB Output is correct
58 Correct 3 ms 11608 KB Output is correct
59 Correct 3 ms 11356 KB Output is correct
60 Correct 4 ms 11356 KB Output is correct
61 Correct 3 ms 11356 KB Output is correct
62 Correct 3 ms 11356 KB Output is correct
63 Correct 3 ms 11356 KB Output is correct
64 Correct 4 ms 11356 KB Output is correct
65 Correct 4 ms 11356 KB Output is correct
66 Correct 3 ms 11356 KB Output is correct
67 Partially correct 4 ms 11352 KB Failed to provide a successful strategy.
68 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
69 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
70 Partially correct 3 ms 11608 KB Failed to provide a successful strategy.
71 Correct 3 ms 11356 KB Output is correct
72 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
73 Correct 4 ms 11356 KB Output is correct
74 Partially correct 4 ms 11356 KB Failed to provide a successful strategy.
75 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
76 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
77 Partially correct 3 ms 11356 KB Failed to provide a successful strategy.
78 Partially correct 4 ms 11356 KB Failed to provide a successful strategy.
79 Correct 3 ms 11356 KB Output is correct
80 Correct 4 ms 11356 KB Output is correct
81 Correct 5 ms 11356 KB Output is correct
82 Correct 4 ms 11352 KB Output is correct
83 Correct 4 ms 11352 KB Output is correct
84 Correct 3 ms 11352 KB Output is correct
85 Correct 3 ms 11356 KB Output is correct
86 Correct 4 ms 11356 KB Output is correct
87 Correct 3 ms 11356 KB Output is correct
88 Correct 4 ms 11352 KB Output is correct
89 Partially correct 28 ms 11556 KB Failed to provide a successful strategy.
90 Partially correct 17 ms 11544 KB Failed to provide a successful strategy.
91 Partially correct 15 ms 11356 KB Failed to provide a successful strategy.
92 Partially correct 16 ms 11512 KB Failed to provide a successful strategy.
93 Partially correct 20 ms 11352 KB Failed to provide a successful strategy.
94 Partially correct 15 ms 11356 KB Failed to provide a successful strategy.
95 Partially correct 21 ms 11356 KB Failed to provide a successful strategy.
96 Partially correct 29 ms 11352 KB Failed to provide a successful strategy.
97 Partially correct 13 ms 11356 KB Failed to provide a successful strategy.
98 Partially correct 21 ms 11556 KB Failed to provide a successful strategy.
99 Partially correct 17 ms 11512 KB Failed to provide a successful strategy.
100 Partially correct 17 ms 11544 KB Failed to provide a successful strategy.
101 Partially correct 20 ms 11352 KB Failed to provide a successful strategy.
102 Partially correct 16 ms 11540 KB Failed to provide a successful strategy.
103 Partially correct 23 ms 11432 KB Failed to provide a successful strategy.
104 Partially correct 17 ms 11524 KB Failed to provide a successful strategy.
105 Partially correct 14 ms 11352 KB Failed to provide a successful strategy.
106 Partially correct 26 ms 11548 KB Failed to provide a successful strategy.
107 Partially correct 14 ms 11356 KB Failed to provide a successful strategy.
108 Partially correct 22 ms 11352 KB Failed to provide a successful strategy.
109 Partially correct 17 ms 11428 KB Failed to provide a successful strategy.
110 Partially correct 23 ms 11532 KB Failed to provide a successful strategy.
111 Partially correct 14 ms 11532 KB Failed to provide a successful strategy.
112 Partially correct 17 ms 11356 KB Failed to provide a successful strategy.
113 Partially correct 21 ms 11432 KB Failed to provide a successful strategy.
114 Partially correct 18 ms 11356 KB Failed to provide a successful strategy.
115 Partially correct 15 ms 11356 KB Failed to provide a successful strategy.
116 Partially correct 20 ms 11356 KB Failed to provide a successful strategy.
117 Partially correct 21 ms 11352 KB Failed to provide a successful strategy.
118 Partially correct 18 ms 11548 KB Failed to provide a successful strategy.
119 Partially correct 16 ms 11356 KB Failed to provide a successful strategy.
120 Partially correct 19 ms 11352 KB Failed to provide a successful strategy.
121 Partially correct 18 ms 11356 KB Failed to provide a successful strategy.
122 Partially correct 22 ms 11356 KB Failed to provide a successful strategy.
123 Partially correct 14 ms 11356 KB Failed to provide a successful strategy.
124 Partially correct 25 ms 11556 KB Failed to provide a successful strategy.
125 Partially correct 13 ms 11436 KB Failed to provide a successful strategy.
126 Partially correct 14 ms 11352 KB Failed to provide a successful strategy.
127 Partially correct 17 ms 11428 KB Failed to provide a successful strategy.
128 Partially correct 21 ms 11356 KB Failed to provide a successful strategy.
129 Correct 3 ms 11352 KB Output is correct
130 Correct 3 ms 11352 KB Output is correct
131 Correct 3 ms 11352 KB Output is correct
132 Correct 4 ms 11356 KB Output is correct
133 Correct 4 ms 11352 KB Output is correct
134 Correct 4 ms 11356 KB Output is correct
135 Correct 3 ms 11352 KB Output is correct
136 Correct 3 ms 11356 KB Output is correct
137 Correct 4 ms 11356 KB Output is correct
138 Correct 3 ms 11356 KB Output is correct
139 Correct 3 ms 11352 KB Output is correct
140 Correct 3 ms 11356 KB Output is correct
141 Correct 3 ms 11356 KB Output is correct
142 Correct 4 ms 11356 KB Output is correct
143 Correct 3 ms 11352 KB Output is correct
144 Partially correct 18 ms 11608 KB Failed to provide a successful strategy.
145 Partially correct 19 ms 11612 KB Failed to provide a successful strategy.