oj.uz

Submission #779354

# Submission time Handle Problem Language Result Execution time Memory
779354 2023-07-11T11:06:32 Z FEDIKUS Newspapers (CEOI21_newspapers) C++17
50 / 100
 155 ms 8236 KB 
#include<bits/stdc++.h>

using namespace std;

const int maxn=1010;
bool moze=true;

vector<int> g[maxn];

int dfs(int node,int parent=-1){
    int ret=0;
    int klk=0;
    for(int i:g[node]){
        if(i==parent) continue;
        auto temp=dfs(i,node);
        ret=max(ret,temp);
        if(temp>2) klk++;
    }
    if(klk>2) moze=false;
    ret++;
    return ret;
}

int main(){
    int n,m;
    cin>>n>>m;
    for(int i=1;i<=m;i++){
        int u,v;
        cin>>u>>v;
        g[u].push_back(v);
        g[v].push_back(u);
    }
    if(m!=n-1){
        cout<<"NO\n";
        return 0;
    }
    for(int i=1;i<=n;i++) dfs(i);
    if(moze) cout<<"YES\n1\n1";
    else cout<<"NO\n";
    return 0;
}
/*
7 6
1 2
1 3
1 4
1 5
1 6
1 7

6 6
1 2
2 3
3 1
1 4
2 5
3 6
*/

Subtask #1
6.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
3 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
4 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
5 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
6 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
7 Correct 0 ms 212 KB Output is correct
8 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
9 Correct 1 ms 212 KB Output is correct
10 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
11 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
12 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
13 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
14 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
15 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
16 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
17 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
18 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
19 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
20 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
21 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
22 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
23 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
24 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
25 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
26 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
27 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
28 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
29 Correct 0 ms 212 KB Output is correct
30 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
31 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
32 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
33 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
34 Correct 0 ms 212 KB Output is correct
35 Partially correct 0 ms 320 KB Failed to provide a successful strategy.
36 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
37 Partially correct 1 ms 324 KB Failed to provide a successful strategy.
38 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
39 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
40 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
41 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
42 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
43 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
44 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
45 Correct 1 ms 212 KB Output is correct
46 Correct 1 ms 324 KB Output is correct
47 Correct 1 ms 212 KB Output is correct
48 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
49 Correct 1 ms 320 KB Output is correct
50 Correct 1 ms 212 KB Output is correct
51 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
52 Correct 0 ms 212 KB Output is correct
53 Correct 0 ms 212 KB Output is correct
54 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
55 Correct 0 ms 324 KB Output is correct
56 Correct 0 ms 212 KB Output is correct
57 Correct 1 ms 212 KB Output is correct
58 Correct 0 ms 212 KB Output is correct
59 Correct 1 ms 212 KB Output is correct
60 Correct 0 ms 212 KB Output is correct
61 Correct 1 ms 328 KB Output is correct
62 Correct 1 ms 212 KB Output is correct
63 Correct 0 ms 328 KB Output is correct
64 Correct 0 ms 212 KB Output is correct

Subtask #2
4.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
3 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
4 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
5 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
6 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
7 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
8 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
9 Partially correct 0 ms 264 KB Failed to provide a successful strategy.
10 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
11 Partially correct 8 ms 400 KB Failed to provide a successful strategy.
12 Partially correct 2 ms 340 KB Failed to provide a successful strategy.
13 Partially correct 4 ms 340 KB Failed to provide a successful strategy.
14 Partially correct 3 ms 340 KB Failed to provide a successful strategy.
15 Partially correct 3 ms 340 KB Failed to provide a successful strategy.
16 Partially correct 7 ms 340 KB Failed to provide a successful strategy.
17 Partially correct 7 ms 340 KB Failed to provide a successful strategy.
18 Partially correct 8 ms 412 KB Failed to provide a successful strategy.
19 Partially correct 9 ms 340 KB Failed to provide a successful strategy.
20 Partially correct 7 ms 404 KB Failed to provide a successful strategy.

Subtask #3
40.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
3 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
4 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
5 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
6 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
7 Correct 0 ms 212 KB Output is correct
8 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
9 Correct 1 ms 212 KB Output is correct
10 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
11 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
12 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
13 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
14 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
15 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
16 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
17 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
18 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
19 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
20 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
21 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
22 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
23 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
24 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
25 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
26 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
27 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
28 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
29 Correct 0 ms 212 KB Output is correct
30 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
31 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
32 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
33 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
34 Correct 0 ms 212 KB Output is correct
35 Partially correct 0 ms 320 KB Failed to provide a successful strategy.
36 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
37 Partially correct 1 ms 324 KB Failed to provide a successful strategy.
38 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
39 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
40 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
41 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
42 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
43 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
44 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
45 Correct 1 ms 212 KB Output is correct
46 Correct 1 ms 324 KB Output is correct
47 Correct 1 ms 212 KB Output is correct
48 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
49 Correct 1 ms 320 KB Output is correct
50 Correct 1 ms 212 KB Output is correct
51 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
52 Correct 0 ms 212 KB Output is correct
53 Correct 0 ms 212 KB Output is correct
54 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
55 Correct 0 ms 324 KB Output is correct
56 Correct 0 ms 212 KB Output is correct
57 Correct 1 ms 212 KB Output is correct
58 Correct 0 ms 212 KB Output is correct
59 Correct 1 ms 212 KB Output is correct
60 Correct 0 ms 212 KB Output is correct
61 Correct 1 ms 328 KB Output is correct
62 Correct 1 ms 212 KB Output is correct
63 Correct 0 ms 328 KB Output is correct
64 Correct 0 ms 212 KB Output is correct
65 Correct 1 ms 212 KB Output is correct
66 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
67 Partially correct 1 ms 320 KB Failed to provide a successful strategy.
68 Partially correct 1 ms 272 KB Failed to provide a successful strategy.
69 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
70 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
71 Correct 0 ms 212 KB Output is correct
72 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
73 Correct 1 ms 212 KB Output is correct
74 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
75 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
76 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
77 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
78 Partially correct 0 ms 328 KB Failed to provide a successful strategy.
79 Correct 4 ms 356 KB Output is correct
80 Correct 5 ms 340 KB Output is correct
81 Correct 6 ms 348 KB Output is correct
82 Correct 7 ms 340 KB Output is correct
83 Correct 5 ms 340 KB Output is correct
84 Correct 6 ms 340 KB Output is correct
85 Correct 5 ms 340 KB Output is correct
86 Correct 7 ms 340 KB Output is correct
87 Correct 5 ms 340 KB Output is correct
88 Correct 4 ms 352 KB Output is correct
89 Partially correct 7 ms 384 KB Failed to provide a successful strategy.
90 Partially correct 6 ms 376 KB Failed to provide a successful strategy.
91 Partially correct 6 ms 380 KB Failed to provide a successful strategy.
92 Partially correct 6 ms 372 KB Failed to provide a successful strategy.
93 Partially correct 7 ms 328 KB Failed to provide a successful strategy.
94 Partially correct 5 ms 372 KB Failed to provide a successful strategy.
95 Partially correct 8 ms 388 KB Failed to provide a successful strategy.
96 Partially correct 8 ms 340 KB Failed to provide a successful strategy.
97 Partially correct 4 ms 324 KB Failed to provide a successful strategy.
98 Partially correct 9 ms 324 KB Failed to provide a successful strategy.
99 Partially correct 7 ms 376 KB Failed to provide a successful strategy.
100 Partially correct 6 ms 340 KB Failed to provide a successful strategy.
101 Partially correct 6 ms 340 KB Failed to provide a successful strategy.
102 Partially correct 8 ms 340 KB Failed to provide a successful strategy.
103 Partially correct 6 ms 340 KB Failed to provide a successful strategy.
104 Partially correct 5 ms 340 KB Failed to provide a successful strategy.
105 Partially correct 5 ms 340 KB Failed to provide a successful strategy.
106 Partially correct 6 ms 376 KB Failed to provide a successful strategy.
107 Partially correct 5 ms 340 KB Failed to provide a successful strategy.
108 Partially correct 10 ms 340 KB Failed to provide a successful strategy.
109 Partially correct 8 ms 380 KB Failed to provide a successful strategy.
110 Partially correct 7 ms 376 KB Failed to provide a successful strategy.
111 Partially correct 5 ms 340 KB Failed to provide a successful strategy.
112 Partially correct 7 ms 340 KB Failed to provide a successful strategy.
113 Partially correct 8 ms 340 KB Failed to provide a successful strategy.
114 Partially correct 6 ms 340 KB Failed to provide a successful strategy.
115 Partially correct 7 ms 340 KB Failed to provide a successful strategy.
116 Partially correct 7 ms 340 KB Failed to provide a successful strategy.
117 Partially correct 8 ms 340 KB Failed to provide a successful strategy.
118 Partially correct 6 ms 372 KB Failed to provide a successful strategy.
119 Partially correct 5 ms 340 KB Failed to provide a successful strategy.
120 Partially correct 6 ms 324 KB Failed to provide a successful strategy.
121 Partially correct 7 ms 384 KB Failed to provide a successful strategy.
122 Partially correct 7 ms 340 KB Failed to provide a successful strategy.
123 Partially correct 10 ms 372 KB Failed to provide a successful strategy.
124 Partially correct 7 ms 340 KB Failed to provide a successful strategy.
125 Partially correct 6 ms 368 KB Failed to provide a successful strategy.
126 Partially correct 7 ms 340 KB Failed to provide a successful strategy.
127 Partially correct 7 ms 340 KB Failed to provide a successful strategy.
128 Partially correct 10 ms 324 KB Failed to provide a successful strategy.
129 Correct 8 ms 340 KB Output is correct
130 Correct 7 ms 328 KB Output is correct
131 Correct 10 ms 360 KB Output is correct
132 Correct 7 ms 340 KB Output is correct
133 Correct 6 ms 360 KB Output is correct
134 Correct 37 ms 1924 KB Output is correct
135 Correct 25 ms 1876 KB Output is correct
136 Correct 74 ms 5432 KB Output is correct
137 Correct 43 ms 3324 KB Output is correct
138 Correct 74 ms 4676 KB Output is correct
139 Correct 151 ms 7968 KB Output is correct
140 Correct 18 ms 1352 KB Output is correct
141 Correct 7 ms 596 KB Output is correct
142 Correct 125 ms 7460 KB Output is correct
143 Correct 155 ms 8236 KB Output is correct
144 Partially correct 7 ms 340 KB Failed to provide a successful strategy.
145 Partially correct 7 ms 340 KB Failed to provide a successful strategy.