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Submission #558090

# Submission time Handle Problem Language Result Execution time Memory
558090 2022-05-06T19:04:52 Z status_coding Newspapers (CEOI21_newspapers) C++14
50 / 100
 3 ms 2772 KB 
#include <bits/stdc++.h>

using namespace std;

int n,m;

vector<int> v[100005];

int dp[100005];

void dfs(int p, int par)
{
    dp[p] = 1;
    bool can=true;

    for(int it : v[p])
    {
        if(it == par)
            continue;

        if((int)v[it].size() == 1)
            continue;

        dfs(it, p);

        if(dp[it] == -1)
        {
            dp[p] = -1;
            return;
        }

        dp[p] = 2;

        if(dp[it] == 1)
            continue;

        if(can)
            can = false;
        else
        {
            dp[p] = -1;
            return;
        }
    }
}

int main()
{
    cin>>n>>m;

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

    for(int i=1;i<n;i++)
    {
        int x, y;
        cin>>x>>y;

        v[x].push_back(y);
        v[y].push_back(x);
    }

    for(int i=1;i<=n;i++)
    {
        dfs(i, 0);

        if(dp[i] != -1)
        {
            cout<<"YES\n";
            cout<<"1 1";
            return 0;
        }
    }

    cout<<"NO";
    return 0;
}

Subtask #1
6.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2644 KB Output is correct
2 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
3 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
4 Partially correct 1 ms 2644 KB Failed to provide a successful strategy.
5 Partially correct 1 ms 2644 KB Failed to provide a successful strategy.
6 Partially correct 1 ms 2644 KB Failed to provide a successful strategy.
7 Correct 2 ms 2644 KB Output is correct
8 Partially correct 1 ms 2644 KB Failed to provide a successful strategy.
9 Correct 2 ms 2644 KB Output is correct
10 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
11 Partially correct 1 ms 2644 KB Failed to provide a successful strategy.
12 Partially correct 1 ms 2644 KB Failed to provide a successful strategy.
13 Partially correct 1 ms 2644 KB Failed to provide a successful strategy.
14 Partially correct 1 ms 2644 KB Failed to provide a successful strategy.
15 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
16 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
17 Partially correct 1 ms 2644 KB Failed to provide a successful strategy.
18 Partially correct 2 ms 2656 KB Failed to provide a successful strategy.
19 Partially correct 1 ms 2644 KB Failed to provide a successful strategy.
20 Partially correct 1 ms 2644 KB Failed to provide a successful strategy.
21 Partially correct 1 ms 2644 KB Failed to provide a successful strategy.
22 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
23 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
24 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
25 Partially correct 1 ms 2644 KB Failed to provide a successful strategy.
26 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
27 Partially correct 1 ms 2644 KB Failed to provide a successful strategy.
28 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
29 Correct 2 ms 2644 KB Output is correct
30 Partially correct 1 ms 2644 KB Failed to provide a successful strategy.
31 Partially correct 2 ms 2596 KB Failed to provide a successful strategy.
32 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
33 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
34 Correct 2 ms 2644 KB Output is correct
35 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
36 Partially correct 1 ms 2644 KB Failed to provide a successful strategy.
37 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
38 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
39 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
40 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
41 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
42 Partially correct 2 ms 2652 KB Failed to provide a successful strategy.
43 Partially correct 2 ms 2656 KB Failed to provide a successful strategy.
44 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
45 Correct 2 ms 2644 KB Output is correct
46 Correct 1 ms 2644 KB Output is correct
47 Correct 2 ms 2656 KB Output is correct
48 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
49 Correct 1 ms 2644 KB Output is correct
50 Correct 2 ms 2644 KB Output is correct
51 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
52 Correct 2 ms 2656 KB Output is correct
53 Correct 2 ms 2644 KB Output is correct
54 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
55 Correct 2 ms 2644 KB Output is correct
56 Correct 2 ms 2644 KB Output is correct
57 Correct 2 ms 2644 KB Output is correct
58 Correct 2 ms 2644 KB Output is correct
59 Correct 2 ms 2644 KB Output is correct
60 Correct 2 ms 2644 KB Output is correct
61 Correct 2 ms 2660 KB Output is correct
62 Correct 2 ms 2644 KB Output is correct
63 Correct 2 ms 2644 KB Output is correct
64 Correct 1 ms 2660 KB Output is correct

Subtask #2
4.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2644 KB Output is correct
2 Partially correct 1 ms 2644 KB Failed to provide a successful strategy.
3 Partially correct 1 ms 2644 KB Failed to provide a successful strategy.
4 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
5 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
6 Partially correct 1 ms 2644 KB Failed to provide a successful strategy.
7 Partially correct 1 ms 2644 KB Failed to provide a successful strategy.
8 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
9 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
10 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
11 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
12 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
13 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
14 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
15 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
16 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
17 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
18 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
19 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
20 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.

Subtask #3
40.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2644 KB Output is correct
2 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
3 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
4 Partially correct 1 ms 2644 KB Failed to provide a successful strategy.
5 Partially correct 1 ms 2644 KB Failed to provide a successful strategy.
6 Partially correct 1 ms 2644 KB Failed to provide a successful strategy.
7 Correct 2 ms 2644 KB Output is correct
8 Partially correct 1 ms 2644 KB Failed to provide a successful strategy.
9 Correct 2 ms 2644 KB Output is correct
10 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
11 Partially correct 1 ms 2644 KB Failed to provide a successful strategy.
12 Partially correct 1 ms 2644 KB Failed to provide a successful strategy.
13 Partially correct 1 ms 2644 KB Failed to provide a successful strategy.
14 Partially correct 1 ms 2644 KB Failed to provide a successful strategy.
15 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
16 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
17 Partially correct 1 ms 2644 KB Failed to provide a successful strategy.
18 Partially correct 2 ms 2656 KB Failed to provide a successful strategy.
19 Partially correct 1 ms 2644 KB Failed to provide a successful strategy.
20 Partially correct 1 ms 2644 KB Failed to provide a successful strategy.
21 Partially correct 1 ms 2644 KB Failed to provide a successful strategy.
22 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
23 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
24 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
25 Partially correct 1 ms 2644 KB Failed to provide a successful strategy.
26 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
27 Partially correct 1 ms 2644 KB Failed to provide a successful strategy.
28 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
29 Correct 2 ms 2644 KB Output is correct
30 Partially correct 1 ms 2644 KB Failed to provide a successful strategy.
31 Partially correct 2 ms 2596 KB Failed to provide a successful strategy.
32 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
33 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
34 Correct 2 ms 2644 KB Output is correct
35 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
36 Partially correct 1 ms 2644 KB Failed to provide a successful strategy.
37 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
38 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
39 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
40 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
41 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
42 Partially correct 2 ms 2652 KB Failed to provide a successful strategy.
43 Partially correct 2 ms 2656 KB Failed to provide a successful strategy.
44 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
45 Correct 2 ms 2644 KB Output is correct
46 Correct 1 ms 2644 KB Output is correct
47 Correct 2 ms 2656 KB Output is correct
48 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
49 Correct 1 ms 2644 KB Output is correct
50 Correct 2 ms 2644 KB Output is correct
51 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
52 Correct 2 ms 2656 KB Output is correct
53 Correct 2 ms 2644 KB Output is correct
54 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
55 Correct 2 ms 2644 KB Output is correct
56 Correct 2 ms 2644 KB Output is correct
57 Correct 2 ms 2644 KB Output is correct
58 Correct 2 ms 2644 KB Output is correct
59 Correct 2 ms 2644 KB Output is correct
60 Correct 2 ms 2644 KB Output is correct
61 Correct 2 ms 2660 KB Output is correct
62 Correct 2 ms 2644 KB Output is correct
63 Correct 2 ms 2644 KB Output is correct
64 Correct 1 ms 2660 KB Output is correct
65 Correct 2 ms 2644 KB Output is correct
66 Partially correct 2 ms 2656 KB Failed to provide a successful strategy.
67 Partially correct 2 ms 2580 KB Failed to provide a successful strategy.
68 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
69 Partially correct 2 ms 2652 KB Failed to provide a successful strategy.
70 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
71 Correct 2 ms 2644 KB Output is correct
72 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
73 Correct 2 ms 2644 KB Output is correct
74 Partially correct 2 ms 2660 KB Failed to provide a successful strategy.
75 Partially correct 3 ms 2644 KB Failed to provide a successful strategy.
76 Partially correct 2 ms 2656 KB Failed to provide a successful strategy.
77 Partially correct 2 ms 2652 KB Failed to provide a successful strategy.
78 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
79 Correct 3 ms 2656 KB Output is correct
80 Correct 3 ms 2644 KB Output is correct
81 Correct 2 ms 2644 KB Output is correct
82 Correct 3 ms 2644 KB Output is correct
83 Correct 2 ms 2644 KB Output is correct
84 Correct 2 ms 2644 KB Output is correct
85 Correct 3 ms 2656 KB Output is correct
86 Correct 2 ms 2644 KB Output is correct
87 Correct 2 ms 2644 KB Output is correct
88 Correct 2 ms 2664 KB Output is correct
89 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
90 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
91 Partially correct 2 ms 2664 KB Failed to provide a successful strategy.
92 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
93 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
94 Partially correct 3 ms 2644 KB Failed to provide a successful strategy.
95 Partially correct 2 ms 2664 KB Failed to provide a successful strategy.
96 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
97 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
98 Partially correct 2 ms 2656 KB Failed to provide a successful strategy.
99 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
100 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
101 Partially correct 2 ms 2656 KB Failed to provide a successful strategy.
102 Partially correct 2 ms 2660 KB Failed to provide a successful strategy.
103 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
104 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
105 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
106 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
107 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
108 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
109 Partially correct 2 ms 2660 KB Failed to provide a successful strategy.
110 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
111 Partially correct 2 ms 2660 KB Failed to provide a successful strategy.
112 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
113 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
114 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
115 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
116 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
117 Partially correct 3 ms 2660 KB Failed to provide a successful strategy.
118 Partially correct 2 ms 2660 KB Failed to provide a successful strategy.
119 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
120 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
121 Partially correct 3 ms 2644 KB Failed to provide a successful strategy.
122 Partially correct 3 ms 2772 KB Failed to provide a successful strategy.
123 Partially correct 2 ms 2772 KB Failed to provide a successful strategy.
124 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
125 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
126 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
127 Partially correct 2 ms 2664 KB Failed to provide a successful strategy.
128 Partially correct 2 ms 2644 KB Failed to provide a successful strategy.
129 Correct 2 ms 2644 KB Output is correct
130 Correct 3 ms 2644 KB Output is correct
131 Correct 2 ms 2644 KB Output is correct
132 Correct 2 ms 2644 KB Output is correct
133 Correct 2 ms 2644 KB Output is correct
134 Correct 1 ms 2644 KB Output is correct
135 Correct 2 ms 2644 KB Output is correct
136 Correct 2 ms 2644 KB Output is correct
137 Correct 1 ms 2676 KB Output is correct
138 Correct 2 ms 2644 KB Output is correct
139 Correct 2 ms 2644 KB Output is correct
140 Correct 2 ms 2644 KB Output is correct
141 Correct 2 ms 2644 KB Output is correct
142 Correct 1 ms 2644 KB Output is correct
143 Correct 2 ms 2672 KB Output is correct
144 Partially correct 2 ms 2772 KB Failed to provide a successful strategy.
145 Partially correct 3 ms 2772 KB Failed to provide a successful strategy.