oj.uz

Submission #528205

# Submission time Handle Problem Language Result Execution time Memory
528205 2022-02-19T16:57:54 Z Rafi22 Newspapers (CEOI21_newspapers) C++14
50 / 100
 17 ms 460 KB 
#include <bits/stdc++.h>

using namespace std;

#define endl '\n'
#define st first
#define nd second
#define pb push_back
#define sz(x) (int)(x).size()
#define all(x) (x).begin(), (x).end()
#define ll long long
ll mod=1000000007;
int inf=1000000007;
ll infl=1000000000000000007;

vector<int>G[1007];
int d[1007];
vector<int>res;
bool ok;

void dfs(int v,int o)
{
    bool was=0;
    d[v]=1;
    for(auto u:G[v])
    {
        if(u==o) continue;
        dfs(u,v);
        d[v]=max(d[v],d[u]+1);
        if(d[u]>2)
        {
            if(was) ok=0;
            was=1;
        }
    }
}

int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int n,m,a,b;
    cin>>n>>m;
    if(m!=n-1)
    {
        cout<<"NO"<<endl;
        return 0;
    }
    for(int i=0;i<n-1;i++)
    {
        cin>>a>>b;
        G[a].pb(b);
        G[b].pb(a);
    }
    vector<int>ans;
    bool is=0;
    for(int i=1;i<=n;i++)
    {
        ok=1;
        res.clear();
        dfs(i,0);
        if(ok)
        {
            is=1;
        }
    }
    if(!is) cout<<"NO"<<endl;
    else
    {
        cout<<"YES"<<endl;
        cout<<1<<endl<<1<<endl;
        //for(auto x:ans) cout<<1<<" ";
    }

    return 0;
}

Subtask #1
6.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
3 Partially correct 1 ms 332 KB Failed to provide a successful strategy.
4 Partially correct 1 ms 332 KB Failed to provide a successful strategy.
5 Partially correct 1 ms 332 KB Failed to provide a successful strategy.
6 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
7 Correct 0 ms 332 KB Output is correct
8 Partially correct 1 ms 332 KB Failed to provide a successful strategy.
9 Correct 0 ms 332 KB Output is correct
10 Partially correct 1 ms 332 KB Failed to provide a successful strategy.
11 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
12 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
13 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
14 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
15 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
16 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
17 Partially correct 1 ms 332 KB Failed to provide a successful strategy.
18 Partially correct 1 ms 332 KB Failed to provide a successful strategy.
19 Partially correct 1 ms 332 KB Failed to provide a successful strategy.
20 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
21 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
22 Partially correct 1 ms 332 KB Failed to provide a successful strategy.
23 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
24 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
25 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
26 Partially correct 1 ms 332 KB Failed to provide a successful strategy.
27 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
28 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
29 Correct 0 ms 332 KB Output is correct
30 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
31 Partially correct 1 ms 332 KB Failed to provide a successful strategy.
32 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
33 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
34 Correct 0 ms 332 KB Output is correct
35 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
36 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
37 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
38 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
39 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
40 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
41 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
42 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
43 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
44 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
45 Correct 0 ms 332 KB Output is correct
46 Correct 1 ms 332 KB Output is correct
47 Correct 0 ms 332 KB Output is correct
48 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
49 Correct 1 ms 344 KB Output is correct
50 Correct 1 ms 332 KB Output is correct
51 Partially correct 1 ms 332 KB Failed to provide a successful strategy.
52 Correct 1 ms 332 KB Output is correct
53 Correct 1 ms 340 KB Output is correct
54 Partially correct 1 ms 332 KB Failed to provide a successful strategy.
55 Correct 1 ms 332 KB Output is correct
56 Correct 0 ms 332 KB Output is correct
57 Correct 1 ms 332 KB Output is correct
58 Correct 1 ms 332 KB Output is correct
59 Correct 1 ms 340 KB Output is correct
60 Correct 0 ms 336 KB Output is correct
61 Correct 1 ms 340 KB Output is correct
62 Correct 1 ms 332 KB Output is correct
63 Correct 0 ms 332 KB Output is correct
64 Correct 1 ms 332 KB Output is correct

Subtask #2
4.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
3 Partially correct 1 ms 332 KB Failed to provide a successful strategy.
4 Partially correct 1 ms 332 KB Failed to provide a successful strategy.
5 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
6 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
7 Partially correct 1 ms 332 KB Failed to provide a successful strategy.
8 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
9 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
10 Partially correct 1 ms 332 KB Failed to provide a successful strategy.
11 Partially correct 9 ms 440 KB Failed to provide a successful strategy.
12 Partially correct 3 ms 332 KB Failed to provide a successful strategy.
13 Partially correct 4 ms 332 KB Failed to provide a successful strategy.
14 Partially correct 5 ms 332 KB Failed to provide a successful strategy.
15 Partially correct 5 ms 332 KB Failed to provide a successful strategy.
16 Partially correct 10 ms 332 KB Failed to provide a successful strategy.
17 Partially correct 13 ms 444 KB Failed to provide a successful strategy.
18 Partially correct 11 ms 332 KB Failed to provide a successful strategy.
19 Partially correct 11 ms 332 KB Failed to provide a successful strategy.
20 Partially correct 11 ms 332 KB Failed to provide a successful strategy.

Subtask #3
40.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
3 Partially correct 1 ms 332 KB Failed to provide a successful strategy.
4 Partially correct 1 ms 332 KB Failed to provide a successful strategy.
5 Partially correct 1 ms 332 KB Failed to provide a successful strategy.
6 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
7 Correct 0 ms 332 KB Output is correct
8 Partially correct 1 ms 332 KB Failed to provide a successful strategy.
9 Correct 0 ms 332 KB Output is correct
10 Partially correct 1 ms 332 KB Failed to provide a successful strategy.
11 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
12 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
13 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
14 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
15 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
16 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
17 Partially correct 1 ms 332 KB Failed to provide a successful strategy.
18 Partially correct 1 ms 332 KB Failed to provide a successful strategy.
19 Partially correct 1 ms 332 KB Failed to provide a successful strategy.
20 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
21 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
22 Partially correct 1 ms 332 KB Failed to provide a successful strategy.
23 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
24 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
25 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
26 Partially correct 1 ms 332 KB Failed to provide a successful strategy.
27 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
28 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
29 Correct 0 ms 332 KB Output is correct
30 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
31 Partially correct 1 ms 332 KB Failed to provide a successful strategy.
32 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
33 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
34 Correct 0 ms 332 KB Output is correct
35 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
36 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
37 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
38 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
39 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
40 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
41 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
42 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
43 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
44 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
45 Correct 0 ms 332 KB Output is correct
46 Correct 1 ms 332 KB Output is correct
47 Correct 0 ms 332 KB Output is correct
48 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
49 Correct 1 ms 344 KB Output is correct
50 Correct 1 ms 332 KB Output is correct
51 Partially correct 1 ms 332 KB Failed to provide a successful strategy.
52 Correct 1 ms 332 KB Output is correct
53 Correct 1 ms 340 KB Output is correct
54 Partially correct 1 ms 332 KB Failed to provide a successful strategy.
55 Correct 1 ms 332 KB Output is correct
56 Correct 0 ms 332 KB Output is correct
57 Correct 1 ms 332 KB Output is correct
58 Correct 1 ms 332 KB Output is correct
59 Correct 1 ms 340 KB Output is correct
60 Correct 0 ms 336 KB Output is correct
61 Correct 1 ms 340 KB Output is correct
62 Correct 1 ms 332 KB Output is correct
63 Correct 0 ms 332 KB Output is correct
64 Correct 1 ms 332 KB Output is correct
65 Correct 1 ms 332 KB Output is correct
66 Partially correct 1 ms 332 KB Failed to provide a successful strategy.
67 Partially correct 1 ms 340 KB Failed to provide a successful strategy.
68 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
69 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
70 Partially correct 1 ms 340 KB Failed to provide a successful strategy.
71 Correct 1 ms 332 KB Output is correct
72 Partially correct 1 ms 332 KB Failed to provide a successful strategy.
73 Correct 0 ms 332 KB Output is correct
74 Partially correct 0 ms 332 KB Failed to provide a successful strategy.
75 Partially correct 1 ms 332 KB Failed to provide a successful strategy.
76 Partially correct 1 ms 332 KB Failed to provide a successful strategy.
77 Partially correct 1 ms 332 KB Failed to provide a successful strategy.
78 Partially correct 1 ms 332 KB Failed to provide a successful strategy.
79 Correct 12 ms 332 KB Output is correct
80 Correct 11 ms 332 KB Output is correct
81 Correct 10 ms 380 KB Output is correct
82 Correct 13 ms 344 KB Output is correct
83 Correct 11 ms 384 KB Output is correct
84 Correct 10 ms 380 KB Output is correct
85 Correct 9 ms 380 KB Output is correct
86 Correct 10 ms 332 KB Output is correct
87 Correct 11 ms 332 KB Output is correct
88 Correct 9 ms 380 KB Output is correct
89 Partially correct 15 ms 348 KB Failed to provide a successful strategy.
90 Partially correct 11 ms 412 KB Failed to provide a successful strategy.
91 Partially correct 11 ms 332 KB Failed to provide a successful strategy.
92 Partially correct 9 ms 332 KB Failed to provide a successful strategy.
93 Partially correct 13 ms 412 KB Failed to provide a successful strategy.
94 Partially correct 10 ms 332 KB Failed to provide a successful strategy.
95 Partially correct 15 ms 332 KB Failed to provide a successful strategy.
96 Partially correct 14 ms 412 KB Failed to provide a successful strategy.
97 Partially correct 8 ms 332 KB Failed to provide a successful strategy.
98 Partially correct 14 ms 420 KB Failed to provide a successful strategy.
99 Partially correct 10 ms 332 KB Failed to provide a successful strategy.
100 Partially correct 14 ms 412 KB Failed to provide a successful strategy.
101 Partially correct 11 ms 332 KB Failed to provide a successful strategy.
102 Partially correct 12 ms 332 KB Failed to provide a successful strategy.
103 Partially correct 12 ms 332 KB Failed to provide a successful strategy.
104 Partially correct 9 ms 404 KB Failed to provide a successful strategy.
105 Partially correct 9 ms 332 KB Failed to provide a successful strategy.
106 Partially correct 11 ms 352 KB Failed to provide a successful strategy.
107 Partially correct 9 ms 400 KB Failed to provide a successful strategy.
108 Partially correct 14 ms 420 KB Failed to provide a successful strategy.
109 Partially correct 11 ms 332 KB Failed to provide a successful strategy.
110 Partially correct 12 ms 460 KB Failed to provide a successful strategy.
111 Partially correct 9 ms 408 KB Failed to provide a successful strategy.
112 Partially correct 10 ms 404 KB Failed to provide a successful strategy.
113 Partially correct 13 ms 332 KB Failed to provide a successful strategy.
114 Partially correct 12 ms 332 KB Failed to provide a successful strategy.
115 Partially correct 10 ms 400 KB Failed to provide a successful strategy.
116 Partially correct 12 ms 332 KB Failed to provide a successful strategy.
117 Partially correct 15 ms 332 KB Failed to provide a successful strategy.
118 Partially correct 12 ms 412 KB Failed to provide a successful strategy.
119 Partially correct 11 ms 408 KB Failed to provide a successful strategy.
120 Partially correct 13 ms 412 KB Failed to provide a successful strategy.
121 Partially correct 12 ms 332 KB Failed to provide a successful strategy.
122 Partially correct 10 ms 332 KB Failed to provide a successful strategy.
123 Partially correct 8 ms 332 KB Failed to provide a successful strategy.
124 Partially correct 14 ms 416 KB Failed to provide a successful strategy.
125 Partially correct 9 ms 332 KB Failed to provide a successful strategy.
126 Partially correct 9 ms 404 KB Failed to provide a successful strategy.
127 Partially correct 11 ms 332 KB Failed to provide a successful strategy.
128 Partially correct 17 ms 332 KB Failed to provide a successful strategy.
129 Correct 14 ms 336 KB Output is correct
130 Correct 13 ms 332 KB Output is correct
131 Correct 14 ms 332 KB Output is correct
132 Correct 13 ms 384 KB Output is correct
133 Correct 14 ms 384 KB Output is correct
134 Correct 0 ms 332 KB Output is correct
135 Correct 1 ms 332 KB Output is correct
136 Correct 1 ms 332 KB Output is correct
137 Correct 1 ms 332 KB Output is correct
138 Correct 1 ms 332 KB Output is correct
139 Correct 1 ms 332 KB Output is correct
140 Correct 1 ms 360 KB Output is correct
141 Correct 1 ms 332 KB Output is correct
142 Correct 1 ms 332 KB Output is correct
143 Correct 1 ms 352 KB Output is correct
144 Partially correct 10 ms 332 KB Failed to provide a successful strategy.
145 Partially correct 11 ms 456 KB Failed to provide a successful strategy.