oj.uz

Submission #1097508

# Submission time Handle Problem Language Result Execution time Memory
1097508 2024-10-07T14:00:03 Z alexander707070 Newspapers (CEOI21_newspapers) C++14
50 / 100
 125 ms 22352 KB 
#include<bits/stdc++.h>
#define MAXN 600007
using namespace std;

int n,m,a,b,ver,cnt;
vector<int> v[MAXN];
vector<int> path;

bool dfs(int x,int p,int dep){
    if(dep==1)return true;
    
    for(int i:v[x]){
        if(i==p)continue;
        if(dfs(i,x,dep-1))return true;
    }

    return false;
}

void dfs2(int x,int p){
    if(cnt<ver)path.push_back(x);

    cnt++;

    for(int i:v[x]){
        if(i==p or v[i].size()==1)continue;
        dfs2(i,x);
        if(cnt<ver)path.push_back(x);
    }
}

int main(){

    cin>>n>>m;
    for(int i=1;i<=m;i++){
        cin>>a>>b;
        v[a].push_back(b);
        v[b].push_back(a);
    }

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

    for(int i=1;i<=n;i++){
        if(v[i].size()<=2)continue;

        int br=0;
        for(int f:v[i]){
            if(dfs(f,i,3))br++;
        }

        if(br>2){
            cout<<"NO\n";
            return 0;
        }
    }

    cout<<"YES\n";
    if(n==1)cout<<"1\n1\n";
    else if(n==2)cout<<"2\n1 1\n";
    else{
        for(int i=1;i<=n;i++){
            if(v[i].size()>1)ver++;
        }

        for(int i=1;i<=n;i++){            
            if(v[i].size()==1)continue;
            dfs2(i,0);

            cout<<path.size()*2<<"\n";
            for(int f:path)cout<<f<<" ";
            for(int f:path)cout<<f<<" ";
            cout<<"\n";

            return 0;
        }
    }

    return 0;
}

Subtask #1
6.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 14680 KB Output is correct
2 Correct 7 ms 14428 KB Output is correct
3 Correct 6 ms 14428 KB Output is correct
4 Partially correct 6 ms 14528 KB Failed to provide a successful strategy.
5 Correct 7 ms 14424 KB Output is correct
6 Partially correct 7 ms 14428 KB Failed to provide a successful strategy.
7 Correct 6 ms 14424 KB Output is correct
8 Partially correct 7 ms 14428 KB Failed to provide a successful strategy.
9 Correct 7 ms 14420 KB Output is correct
10 Partially correct 6 ms 14428 KB Failed to provide a successful strategy.
11 Partially correct 6 ms 14428 KB Provide a successful but not optimal strategy.
12 Partially correct 6 ms 14428 KB Failed to provide a successful strategy.
13 Partially correct 7 ms 14428 KB Failed to provide a successful strategy.
14 Correct 7 ms 14428 KB Output is correct
15 Partially correct 7 ms 14428 KB Failed to provide a successful strategy.
16 Partially correct 7 ms 14428 KB Provide a successful but not optimal strategy.
17 Partially correct 6 ms 14388 KB Provide a successful but not optimal strategy.
18 Partially correct 7 ms 14428 KB Provide a successful but not optimal strategy.
19 Partially correct 7 ms 14496 KB Failed to provide a successful strategy.
20 Partially correct 6 ms 14428 KB Failed to provide a successful strategy.
21 Partially correct 7 ms 14428 KB Failed to provide a successful strategy.
22 Partially correct 8 ms 14428 KB Failed to provide a successful strategy.
23 Partially correct 6 ms 14312 KB Provide a successful but not optimal strategy.
24 Correct 7 ms 14428 KB Output is correct
25 Partially correct 7 ms 14424 KB Provide a successful but not optimal strategy.
26 Partially correct 7 ms 14428 KB Failed to provide a successful strategy.
27 Partially correct 6 ms 14424 KB Provide a successful but not optimal strategy.
28 Partially correct 6 ms 14428 KB Provide a successful but not optimal strategy.
29 Correct 7 ms 14428 KB Output is correct
30 Partially correct 7 ms 14428 KB Failed to provide a successful strategy.
31 Partially correct 9 ms 14512 KB Failed to provide a successful strategy.
32 Partially correct 7 ms 14428 KB Failed to provide a successful strategy.
33 Partially correct 7 ms 14532 KB Failed to provide a successful strategy.
34 Correct 6 ms 14424 KB Output is correct
35 Correct 6 ms 14428 KB Output is correct
36 Partially correct 7 ms 14428 KB Failed to provide a successful strategy.
37 Partially correct 7 ms 14424 KB Failed to provide a successful strategy.
38 Partially correct 7 ms 14424 KB Provide a successful but not optimal strategy.
39 Partially correct 6 ms 14428 KB Failed to provide a successful strategy.
40 Partially correct 6 ms 14428 KB Provide a successful but not optimal strategy.
41 Partially correct 7 ms 14428 KB Failed to provide a successful strategy.
42 Partially correct 6 ms 14428 KB Failed to provide a successful strategy.
43 Partially correct 7 ms 14528 KB Failed to provide a successful strategy.
44 Partially correct 7 ms 14428 KB Failed to provide a successful strategy.
45 Correct 7 ms 14428 KB Output is correct
46 Correct 6 ms 14428 KB Output is correct
47 Correct 6 ms 14428 KB Output is correct
48 Partially correct 7 ms 14428 KB Failed to provide a successful strategy.
49 Correct 6 ms 14428 KB Output is correct
50 Correct 6 ms 14428 KB Output is correct
51 Partially correct 8 ms 14428 KB Failed to provide a successful strategy.
52 Correct 7 ms 14428 KB Output is correct
53 Correct 7 ms 14428 KB Output is correct
54 Partially correct 7 ms 14360 KB Failed to provide a successful strategy.
55 Correct 7 ms 14428 KB Output is correct
56 Correct 7 ms 14428 KB Output is correct
57 Correct 7 ms 14428 KB Output is correct
58 Correct 7 ms 14404 KB Output is correct
59 Correct 7 ms 14428 KB Output is correct
60 Correct 7 ms 14428 KB Output is correct
61 Correct 7 ms 14428 KB Output is correct
62 Correct 5 ms 14404 KB Output is correct
63 Correct 7 ms 14428 KB Output is correct
64 Correct 7 ms 14532 KB Output is correct

Subtask #2
4.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 14428 KB Output is correct
2 Correct 7 ms 14428 KB Output is correct
3 Correct 6 ms 14428 KB Output is correct
4 Partially correct 7 ms 14428 KB Failed to provide a successful strategy.
5 Correct 6 ms 14428 KB Output is correct
6 Partially correct 6 ms 14504 KB Failed to provide a successful strategy.
7 Correct 7 ms 14428 KB Output is correct
8 Partially correct 6 ms 14348 KB Failed to provide a successful strategy.
9 Correct 6 ms 14404 KB Output is correct
10 Partially correct 7 ms 14428 KB Failed to provide a successful strategy.
11 Partially correct 7 ms 14384 KB Failed to provide a successful strategy.
12 Correct 7 ms 14428 KB Output is correct
13 Partially correct 7 ms 14428 KB Failed to provide a successful strategy.
14 Partially correct 7 ms 14428 KB Failed to provide a successful strategy.
15 Correct 8 ms 14428 KB Output is correct
16 Partially correct 7 ms 14428 KB Failed to provide a successful strategy.
17 Correct 7 ms 14424 KB Output is correct
18 Partially correct 8 ms 14428 KB Failed to provide a successful strategy.
19 Correct 7 ms 14424 KB Output is correct
20 Partially correct 7 ms 14428 KB Failed to provide a successful strategy.

Subtask #3
40.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 14680 KB Output is correct
2 Correct 7 ms 14428 KB Output is correct
3 Correct 6 ms 14428 KB Output is correct
4 Partially correct 6 ms 14528 KB Failed to provide a successful strategy.
5 Correct 7 ms 14424 KB Output is correct
6 Partially correct 7 ms 14428 KB Failed to provide a successful strategy.
7 Correct 6 ms 14424 KB Output is correct
8 Partially correct 7 ms 14428 KB Failed to provide a successful strategy.
9 Correct 7 ms 14420 KB Output is correct
10 Partially correct 6 ms 14428 KB Failed to provide a successful strategy.
11 Partially correct 6 ms 14428 KB Provide a successful but not optimal strategy.
12 Partially correct 6 ms 14428 KB Failed to provide a successful strategy.
13 Partially correct 7 ms 14428 KB Failed to provide a successful strategy.
14 Correct 7 ms 14428 KB Output is correct
15 Partially correct 7 ms 14428 KB Failed to provide a successful strategy.
16 Partially correct 7 ms 14428 KB Provide a successful but not optimal strategy.
17 Partially correct 6 ms 14388 KB Provide a successful but not optimal strategy.
18 Partially correct 7 ms 14428 KB Provide a successful but not optimal strategy.
19 Partially correct 7 ms 14496 KB Failed to provide a successful strategy.
20 Partially correct 6 ms 14428 KB Failed to provide a successful strategy.
21 Partially correct 7 ms 14428 KB Failed to provide a successful strategy.
22 Partially correct 8 ms 14428 KB Failed to provide a successful strategy.
23 Partially correct 6 ms 14312 KB Provide a successful but not optimal strategy.
24 Correct 7 ms 14428 KB Output is correct
25 Partially correct 7 ms 14424 KB Provide a successful but not optimal strategy.
26 Partially correct 7 ms 14428 KB Failed to provide a successful strategy.
27 Partially correct 6 ms 14424 KB Provide a successful but not optimal strategy.
28 Partially correct 6 ms 14428 KB Provide a successful but not optimal strategy.
29 Correct 7 ms 14428 KB Output is correct
30 Partially correct 7 ms 14428 KB Failed to provide a successful strategy.
31 Partially correct 9 ms 14512 KB Failed to provide a successful strategy.
32 Partially correct 7 ms 14428 KB Failed to provide a successful strategy.
33 Partially correct 7 ms 14532 KB Failed to provide a successful strategy.
34 Correct 6 ms 14424 KB Output is correct
35 Correct 6 ms 14428 KB Output is correct
36 Partially correct 7 ms 14428 KB Failed to provide a successful strategy.
37 Partially correct 7 ms 14424 KB Failed to provide a successful strategy.
38 Partially correct 7 ms 14424 KB Provide a successful but not optimal strategy.
39 Partially correct 6 ms 14428 KB Failed to provide a successful strategy.
40 Partially correct 6 ms 14428 KB Provide a successful but not optimal strategy.
41 Partially correct 7 ms 14428 KB Failed to provide a successful strategy.
42 Partially correct 6 ms 14428 KB Failed to provide a successful strategy.
43 Partially correct 7 ms 14528 KB Failed to provide a successful strategy.
44 Partially correct 7 ms 14428 KB Failed to provide a successful strategy.
45 Correct 7 ms 14428 KB Output is correct
46 Correct 6 ms 14428 KB Output is correct
47 Correct 6 ms 14428 KB Output is correct
48 Partially correct 7 ms 14428 KB Failed to provide a successful strategy.
49 Correct 6 ms 14428 KB Output is correct
50 Correct 6 ms 14428 KB Output is correct
51 Partially correct 8 ms 14428 KB Failed to provide a successful strategy.
52 Correct 7 ms 14428 KB Output is correct
53 Correct 7 ms 14428 KB Output is correct
54 Partially correct 7 ms 14360 KB Failed to provide a successful strategy.
55 Correct 7 ms 14428 KB Output is correct
56 Correct 7 ms 14428 KB Output is correct
57 Correct 7 ms 14428 KB Output is correct
58 Correct 7 ms 14404 KB Output is correct
59 Correct 7 ms 14428 KB Output is correct
60 Correct 7 ms 14428 KB Output is correct
61 Correct 7 ms 14428 KB Output is correct
62 Correct 5 ms 14404 KB Output is correct
63 Correct 7 ms 14428 KB Output is correct
64 Correct 7 ms 14532 KB Output is correct
65 Correct 6 ms 14428 KB Output is correct
66 Correct 6 ms 14428 KB Output is correct
67 Correct 6 ms 14428 KB Output is correct
68 Partially correct 6 ms 14428 KB Failed to provide a successful strategy.
69 Correct 5 ms 14428 KB Output is correct
70 Partially correct 6 ms 14428 KB Failed to provide a successful strategy.
71 Correct 6 ms 14432 KB Output is correct
72 Partially correct 7 ms 14428 KB Failed to provide a successful strategy.
73 Correct 6 ms 14428 KB Output is correct
74 Partially correct 5 ms 14524 KB Failed to provide a successful strategy.
75 Partially correct 6 ms 14428 KB Provide a successful but not optimal strategy.
76 Partially correct 7 ms 14332 KB Failed to provide a successful strategy.
77 Partially correct 6 ms 14428 KB Failed to provide a successful strategy.
78 Correct 5 ms 14532 KB Output is correct
79 Correct 6 ms 14576 KB Output is correct
80 Correct 6 ms 14428 KB Output is correct
81 Correct 6 ms 14428 KB Output is correct
82 Correct 6 ms 14428 KB Output is correct
83 Correct 6 ms 14428 KB Output is correct
84 Correct 6 ms 14428 KB Output is correct
85 Correct 6 ms 14428 KB Output is correct
86 Correct 6 ms 14532 KB Output is correct
87 Correct 6 ms 14428 KB Output is correct
88 Correct 6 ms 14428 KB Output is correct
89 Partially correct 6 ms 14424 KB Failed to provide a successful strategy.
90 Partially correct 7 ms 14424 KB Failed to provide a successful strategy.
91 Partially correct 6 ms 14428 KB Failed to provide a successful strategy.
92 Partially correct 6 ms 14428 KB Failed to provide a successful strategy.
93 Partially correct 6 ms 14424 KB Failed to provide a successful strategy.
94 Partially correct 7 ms 14428 KB Failed to provide a successful strategy.
95 Partially correct 7 ms 14424 KB Failed to provide a successful strategy.
96 Partially correct 8 ms 14428 KB Failed to provide a successful strategy.
97 Partially correct 7 ms 14428 KB Failed to provide a successful strategy.
98 Partially correct 7 ms 14428 KB Failed to provide a successful strategy.
99 Partially correct 7 ms 14532 KB Failed to provide a successful strategy.
100 Partially correct 7 ms 14428 KB Failed to provide a successful strategy.
101 Partially correct 7 ms 14428 KB Failed to provide a successful strategy.
102 Partially correct 7 ms 14428 KB Failed to provide a successful strategy.
103 Partially correct 7 ms 14428 KB Failed to provide a successful strategy.
104 Partially correct 7 ms 14424 KB Failed to provide a successful strategy.
105 Partially correct 6 ms 14424 KB Failed to provide a successful strategy.
106 Partially correct 6 ms 14424 KB Failed to provide a successful strategy.
107 Partially correct 7 ms 14536 KB Failed to provide a successful strategy.
108 Partially correct 7 ms 14424 KB Failed to provide a successful strategy.
109 Partially correct 7 ms 14428 KB Failed to provide a successful strategy.
110 Partially correct 7 ms 14424 KB Failed to provide a successful strategy.
111 Partially correct 7 ms 14512 KB Failed to provide a successful strategy.
112 Partially correct 7 ms 14424 KB Failed to provide a successful strategy.
113 Partially correct 7 ms 14424 KB Failed to provide a successful strategy.
114 Partially correct 8 ms 14428 KB Failed to provide a successful strategy.
115 Partially correct 7 ms 14428 KB Failed to provide a successful strategy.
116 Partially correct 7 ms 14428 KB Failed to provide a successful strategy.
117 Partially correct 7 ms 14424 KB Failed to provide a successful strategy.
118 Partially correct 7 ms 14428 KB Failed to provide a successful strategy.
119 Partially correct 7 ms 14428 KB Failed to provide a successful strategy.
120 Partially correct 7 ms 14424 KB Failed to provide a successful strategy.
121 Partially correct 7 ms 14424 KB Failed to provide a successful strategy.
122 Partially correct 9 ms 14428 KB Failed to provide a successful strategy.
123 Partially correct 7 ms 14424 KB Failed to provide a successful strategy.
124 Partially correct 7 ms 14484 KB Failed to provide a successful strategy.
125 Partially correct 7 ms 14428 KB Failed to provide a successful strategy.
126 Partially correct 7 ms 14428 KB Failed to provide a successful strategy.
127 Partially correct 6 ms 14428 KB Failed to provide a successful strategy.
128 Partially correct 6 ms 14424 KB Failed to provide a successful strategy.
129 Correct 8 ms 14568 KB Output is correct
130 Correct 7 ms 14428 KB Output is correct
131 Correct 6 ms 14428 KB Output is correct
132 Correct 6 ms 14428 KB Output is correct
133 Correct 6 ms 14524 KB Output is correct
134 Correct 30 ms 16036 KB Output is correct
135 Correct 26 ms 15960 KB Output is correct
136 Correct 59 ms 19536 KB Output is correct
137 Correct 44 ms 17492 KB Output is correct
138 Correct 79 ms 18688 KB Output is correct
139 Correct 122 ms 21840 KB Output is correct
140 Correct 24 ms 15448 KB Output is correct
141 Correct 11 ms 14680 KB Output is correct
142 Correct 114 ms 21524 KB Output is correct
143 Correct 125 ms 22352 KB Output is correct
144 Correct 6 ms 14424 KB Output is correct
145 Partially correct 6 ms 14428 KB Failed to provide a successful strategy.