oj.uz

Submission #1067404

# Submission time Handle Problem Language Result Execution time Memory
1067404 2024-08-20T16:28:09 Z Andrey Newspapers (CEOI21_newspapers) C++14
50 / 100
 48 ms 8528 KB 
#include<bits/stdc++.h>
using namespace std;

vector<int> haha[10000];
vector<int> wow(0);
vector<int> wut(0);
int n,m;

void dfs(int a, int t, int d) {
    if(d%2) {
        wow.push_back(a);
    }
    else {
        wut.push_back(a);
    }
    for(int v: haha[a]) {
        if(v != t) {
            dfs(v,a,d+1);
        }
    }
}

bool check() {
    vector<int> br(n+1);
    vector<int> br1(n+1);
    for(int i = 1; i <= n; i++) {
        br[i] = haha[i].size();
    }
    for(int i = 1; i <= n; i++) {
        if(haha[i].size() == 1) {
            br[haha[i][0]]--;
            br[i] = -1;
        }
    }
    for(int i = 1; i <= n; i++) {
        br1[i] = br[i];
    }
    for(int i = 1; i <= n; i++) {
        if(br1[i] == 1) {
            for(int v: haha[i]) {
                br[v]--;
            }
            br[i] = -1;
        }
    }
    for(int i = 1; i <= n; i++) {
        if(br[i] > 2) {
            return false;
        }
    }
    return true;
}

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    cin >> n >> m;
    int a,b;
    for(int i = 0; i < m; i++) {
        cin >> a >> b;
        haha[a].push_back(b);
        haha[b].push_back(a);
    }
    if(m > n-1) {
        cout << "NO" << endl;
        return 0;
    }
    dfs(1,-1,0);
    if(check()) {
        cout << "YES" << endl;
        cout << 1 << endl << 1 << endl;
    }
    else {
        swap(wow,wut);
        if(check()) {
            cout << "YES" << endl;
            cout << 1 << endl << 1 << endl;
        }
        else {
            cout << "NO" << endl;
        }
    }
    return 0;
}

Subtask #1
6.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 604 KB Output is correct
2 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
3 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
4 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
5 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
6 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
7 Correct 0 ms 604 KB Output is correct
8 Partially correct 1 ms 600 KB Failed to provide a successful strategy.
9 Correct 0 ms 604 KB Output is correct
10 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
11 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
12 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
13 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
14 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
15 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
16 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
17 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
18 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
19 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
20 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
21 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
22 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
23 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
24 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
25 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
26 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
27 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
28 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
29 Correct 0 ms 604 KB Output is correct
30 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
31 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
32 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
33 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
34 Correct 0 ms 604 KB Output is correct
35 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
36 Partially correct 0 ms 600 KB Failed to provide a successful strategy.
37 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
38 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
39 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
40 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
41 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
42 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
43 Partially correct 1 ms 600 KB Failed to provide a successful strategy.
44 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
45 Correct 0 ms 604 KB Output is correct
46 Correct 0 ms 604 KB Output is correct
47 Correct 0 ms 604 KB Output is correct
48 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
49 Correct 0 ms 604 KB Output is correct
50 Correct 0 ms 604 KB Output is correct
51 Partially correct 0 ms 696 KB Failed to provide a successful strategy.
52 Correct 1 ms 604 KB Output is correct
53 Correct 0 ms 684 KB Output is correct
54 Partially correct 1 ms 600 KB Failed to provide a successful strategy.
55 Correct 0 ms 604 KB Output is correct
56 Correct 0 ms 600 KB Output is correct
57 Correct 0 ms 608 KB Output is correct
58 Correct 0 ms 604 KB Output is correct
59 Correct 0 ms 604 KB Output is correct
60 Correct 1 ms 604 KB Output is correct
61 Correct 0 ms 604 KB Output is correct
62 Correct 0 ms 604 KB Output is correct
63 Correct 0 ms 604 KB Output is correct
64 Correct 0 ms 604 KB Output is correct

Subtask #2
4.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 604 KB Output is correct
2 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
3 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
4 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
5 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
6 Partially correct 0 ms 600 KB Failed to provide a successful strategy.
7 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
8 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
9 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
10 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
11 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
12 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
13 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
14 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
15 Partially correct 0 ms 600 KB Failed to provide a successful strategy.
16 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
17 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
18 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
19 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
20 Partially correct 1 ms 604 KB Failed to provide a successful strategy.

Subtask #3
40.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 604 KB Output is correct
2 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
3 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
4 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
5 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
6 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
7 Correct 0 ms 604 KB Output is correct
8 Partially correct 1 ms 600 KB Failed to provide a successful strategy.
9 Correct 0 ms 604 KB Output is correct
10 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
11 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
12 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
13 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
14 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
15 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
16 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
17 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
18 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
19 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
20 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
21 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
22 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
23 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
24 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
25 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
26 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
27 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
28 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
29 Correct 0 ms 604 KB Output is correct
30 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
31 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
32 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
33 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
34 Correct 0 ms 604 KB Output is correct
35 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
36 Partially correct 0 ms 600 KB Failed to provide a successful strategy.
37 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
38 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
39 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
40 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
41 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
42 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
43 Partially correct 1 ms 600 KB Failed to provide a successful strategy.
44 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
45 Correct 0 ms 604 KB Output is correct
46 Correct 0 ms 604 KB Output is correct
47 Correct 0 ms 604 KB Output is correct
48 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
49 Correct 0 ms 604 KB Output is correct
50 Correct 0 ms 604 KB Output is correct
51 Partially correct 0 ms 696 KB Failed to provide a successful strategy.
52 Correct 1 ms 604 KB Output is correct
53 Correct 0 ms 684 KB Output is correct
54 Partially correct 1 ms 600 KB Failed to provide a successful strategy.
55 Correct 0 ms 604 KB Output is correct
56 Correct 0 ms 600 KB Output is correct
57 Correct 0 ms 608 KB Output is correct
58 Correct 0 ms 604 KB Output is correct
59 Correct 0 ms 604 KB Output is correct
60 Correct 1 ms 604 KB Output is correct
61 Correct 0 ms 604 KB Output is correct
62 Correct 0 ms 604 KB Output is correct
63 Correct 0 ms 604 KB Output is correct
64 Correct 0 ms 604 KB Output is correct
65 Correct 0 ms 604 KB Output is correct
66 Partially correct 0 ms 696 KB Failed to provide a successful strategy.
67 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
68 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
69 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
70 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
71 Correct 1 ms 604 KB Output is correct
72 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
73 Correct 0 ms 604 KB Output is correct
74 Partially correct 0 ms 700 KB Failed to provide a successful strategy.
75 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
76 Partially correct 0 ms 696 KB Failed to provide a successful strategy.
77 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
78 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
79 Correct 1 ms 700 KB Output is correct
80 Correct 0 ms 604 KB Output is correct
81 Correct 1 ms 604 KB Output is correct
82 Correct 1 ms 604 KB Output is correct
83 Correct 1 ms 696 KB Output is correct
84 Correct 0 ms 604 KB Output is correct
85 Correct 1 ms 604 KB Output is correct
86 Correct 1 ms 648 KB Output is correct
87 Correct 0 ms 604 KB Output is correct
88 Correct 0 ms 604 KB Output is correct
89 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
90 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
91 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
92 Partially correct 1 ms 600 KB Failed to provide a successful strategy.
93 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
94 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
95 Partially correct 1 ms 700 KB Failed to provide a successful strategy.
96 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
97 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
98 Partially correct 1 ms 600 KB Failed to provide a successful strategy.
99 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
100 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
101 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
102 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
103 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
104 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
105 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
106 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
107 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
108 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
109 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
110 Partially correct 0 ms 608 KB Failed to provide a successful strategy.
111 Partially correct 1 ms 856 KB Failed to provide a successful strategy.
112 Partially correct 1 ms 600 KB Failed to provide a successful strategy.
113 Partially correct 1 ms 600 KB Failed to provide a successful strategy.
114 Partially correct 1 ms 600 KB Failed to provide a successful strategy.
115 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
116 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
117 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
118 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
119 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
120 Partially correct 1 ms 600 KB Failed to provide a successful strategy.
121 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
122 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
123 Partially correct 1 ms 600 KB Failed to provide a successful strategy.
124 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
125 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
126 Partially correct 1 ms 600 KB Failed to provide a successful strategy.
127 Partially correct 0 ms 604 KB Failed to provide a successful strategy.
128 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
129 Correct 1 ms 600 KB Output is correct
130 Correct 1 ms 604 KB Output is correct
131 Correct 0 ms 604 KB Output is correct
132 Correct 0 ms 604 KB Output is correct
133 Correct 0 ms 604 KB Output is correct
134 Correct 9 ms 2140 KB Output is correct
135 Correct 9 ms 2136 KB Output is correct
136 Correct 21 ms 5724 KB Output is correct
137 Correct 13 ms 3672 KB Output is correct
138 Correct 23 ms 4900 KB Output is correct
139 Correct 45 ms 8232 KB Output is correct
140 Correct 6 ms 1628 KB Output is correct
141 Correct 3 ms 856 KB Output is correct
142 Correct 48 ms 7888 KB Output is correct
143 Correct 44 ms 8528 KB Output is correct
144 Partially correct 1 ms 604 KB Failed to provide a successful strategy.
145 Partially correct 1 ms 604 KB Failed to provide a successful strategy.