oj.uz

답안 #930823

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
930823 2024-02-20T13:18:50 Z phoenix0423 Power Plant (JOI20_power) C++17
100 / 100
 110 ms 31376 KB 
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
#define int long long
typedef pair<int, int> pll;
#define fastio ios::sync_with_stdio(false), cin.tie(0)
#define pb push_back
#define eb emplace_back
#define f first
#define s second
#define lowbit(x) x&-x;
const int maxn = 2e5 + 5;
const int INF = 1e18;
vector<int> adj[maxn];
int st[maxn], dp[maxn];
int ans = 0;

void dfs(int pos, int prev){
    int ttl = 0, ad = 0, mx = 0;
    for(auto x : adj[pos]){
        if(x == prev) continue;
        dfs(x, pos);
        if(dp[x] == 0) continue;
        mx = max(mx, dp[x]);
        ttl += dp[x];
        ad++;
    }
    ans = max(ans, mx + st[pos]);
    dp[pos] = max(ttl - st[pos], st[pos]);
    ans = max(ans, dp[pos]);
}

signed main(void){
    fastio;
    int n;
    cin>>n;
    for(int i = 0; i < n - 1; i++){
        int a, b;
        cin>>a>>b;
        a--, b--;
        adj[a].pb(b);
        adj[b].pb(a);
    }
    string s;
    cin>>s;
    for(int i = 0; i < n; i++) st[i] = (s[i] == '1');
    dfs(0, -1);
    cout<<ans<<"\n";
}

Subtask #1
6.0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 8028 KB Output is correct
2 Correct 2 ms 8028 KB Output is correct
3 Correct 2 ms 8028 KB Output is correct
4 Correct 3 ms 8092 KB Output is correct
5 Correct 2 ms 8028 KB Output is correct
6 Correct 2 ms 8108 KB Output is correct
7 Correct 2 ms 8028 KB Output is correct
8 Correct 2 ms 8028 KB Output is correct
9 Correct 2 ms 8028 KB Output is correct
10 Correct 2 ms 8028 KB Output is correct
11 Correct 2 ms 8028 KB Output is correct
12 Correct 2 ms 8112 KB Output is correct
13 Correct 2 ms 8280 KB Output is correct
14 Correct 2 ms 8028 KB Output is correct
15 Correct 3 ms 8028 KB Output is correct
16 Correct 2 ms 8028 KB Output is correct
17 Correct 2 ms 8028 KB Output is correct
18 Correct 3 ms 8028 KB Output is correct
19 Correct 2 ms 8028 KB Output is correct
20 Correct 3 ms 8028 KB Output is correct
21 Correct 2 ms 8028 KB Output is correct

Subtask #2
41.0 / 41.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 8028 KB Output is correct
2 Correct 2 ms 8028 KB Output is correct
3 Correct 2 ms 8028 KB Output is correct
4 Correct 3 ms 8092 KB Output is correct
5 Correct 2 ms 8028 KB Output is correct
6 Correct 2 ms 8108 KB Output is correct
7 Correct 2 ms 8028 KB Output is correct
8 Correct 2 ms 8028 KB Output is correct
9 Correct 2 ms 8028 KB Output is correct
10 Correct 2 ms 8028 KB Output is correct
11 Correct 2 ms 8028 KB Output is correct
12 Correct 2 ms 8112 KB Output is correct
13 Correct 2 ms 8280 KB Output is correct
14 Correct 2 ms 8028 KB Output is correct
15 Correct 3 ms 8028 KB Output is correct
16 Correct 2 ms 8028 KB Output is correct
17 Correct 2 ms 8028 KB Output is correct
18 Correct 3 ms 8028 KB Output is correct
19 Correct 2 ms 8028 KB Output is correct
20 Correct 3 ms 8028 KB Output is correct
21 Correct 2 ms 8028 KB Output is correct
22 Correct 3 ms 8028 KB Output is correct
23 Correct 2 ms 8028 KB Output is correct
24 Correct 2 ms 8028 KB Output is correct
25 Correct 4 ms 8284 KB Output is correct
26 Correct 3 ms 8024 KB Output is correct
27 Correct 3 ms 8028 KB Output is correct
28 Correct 2 ms 8028 KB Output is correct
29 Correct 3 ms 8284 KB Output is correct
30 Correct 3 ms 8240 KB Output is correct
31 Correct 3 ms 8028 KB Output is correct
32 Correct 2 ms 8028 KB Output is correct
33 Correct 2 ms 8028 KB Output is correct
34 Correct 2 ms 8028 KB Output is correct
35 Correct 3 ms 8124 KB Output is correct
36 Correct 3 ms 8028 KB Output is correct
37 Correct 3 ms 8284 KB Output is correct
38 Correct 3 ms 8028 KB Output is correct
39 Correct 2 ms 8028 KB Output is correct
40 Correct 3 ms 8028 KB Output is correct
41 Correct 3 ms 8284 KB Output is correct
42 Correct 3 ms 8028 KB Output is correct
43 Correct 3 ms 8028 KB Output is correct
44 Correct 3 ms 8028 KB Output is correct
45 Correct 3 ms 8280 KB Output is correct
46 Correct 3 ms 8024 KB Output is correct
47 Correct 3 ms 8028 KB Output is correct
48 Correct 3 ms 8280 KB Output is correct
49 Correct 3 ms 8284 KB Output is correct
50 Correct 3 ms 8028 KB Output is correct
51 Correct 4 ms 8536 KB Output is correct
52 Correct 3 ms 8028 KB Output is correct
53 Correct 3 ms 8216 KB Output is correct
54 Correct 3 ms 8204 KB Output is correct
55 Correct 2 ms 8028 KB Output is correct
56 Correct 4 ms 8028 KB Output is correct
57 Correct 3 ms 8284 KB Output is correct
58 Correct 2 ms 8028 KB Output is correct
59 Correct 3 ms 8028 KB Output is correct
60 Correct 3 ms 8284 KB Output is correct
61 Correct 3 ms 8028 KB Output is correct
62 Correct 3 ms 8284 KB Output is correct
63 Correct 3 ms 8024 KB Output is correct

Subtask #3
53.0 / 53.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 8028 KB Output is correct
2 Correct 2 ms 8028 KB Output is correct
3 Correct 2 ms 8028 KB Output is correct
4 Correct 3 ms 8092 KB Output is correct
5 Correct 2 ms 8028 KB Output is correct
6 Correct 2 ms 8108 KB Output is correct
7 Correct 2 ms 8028 KB Output is correct
8 Correct 2 ms 8028 KB Output is correct
9 Correct 2 ms 8028 KB Output is correct
10 Correct 2 ms 8028 KB Output is correct
11 Correct 2 ms 8028 KB Output is correct
12 Correct 2 ms 8112 KB Output is correct
13 Correct 2 ms 8280 KB Output is correct
14 Correct 2 ms 8028 KB Output is correct
15 Correct 3 ms 8028 KB Output is correct
16 Correct 2 ms 8028 KB Output is correct
17 Correct 2 ms 8028 KB Output is correct
18 Correct 3 ms 8028 KB Output is correct
19 Correct 2 ms 8028 KB Output is correct
20 Correct 3 ms 8028 KB Output is correct
21 Correct 2 ms 8028 KB Output is correct
22 Correct 3 ms 8028 KB Output is correct
23 Correct 2 ms 8028 KB Output is correct
24 Correct 2 ms 8028 KB Output is correct
25 Correct 4 ms 8284 KB Output is correct
26 Correct 3 ms 8024 KB Output is correct
27 Correct 3 ms 8028 KB Output is correct
28 Correct 2 ms 8028 KB Output is correct
29 Correct 3 ms 8284 KB Output is correct
30 Correct 3 ms 8240 KB Output is correct
31 Correct 3 ms 8028 KB Output is correct
32 Correct 2 ms 8028 KB Output is correct
33 Correct 2 ms 8028 KB Output is correct
34 Correct 2 ms 8028 KB Output is correct
35 Correct 3 ms 8124 KB Output is correct
36 Correct 3 ms 8028 KB Output is correct
37 Correct 3 ms 8284 KB Output is correct
38 Correct 3 ms 8028 KB Output is correct
39 Correct 2 ms 8028 KB Output is correct
40 Correct 3 ms 8028 KB Output is correct
41 Correct 3 ms 8284 KB Output is correct
42 Correct 3 ms 8028 KB Output is correct
43 Correct 3 ms 8028 KB Output is correct
44 Correct 3 ms 8028 KB Output is correct
45 Correct 3 ms 8280 KB Output is correct
46 Correct 3 ms 8024 KB Output is correct
47 Correct 3 ms 8028 KB Output is correct
48 Correct 3 ms 8280 KB Output is correct
49 Correct 3 ms 8284 KB Output is correct
50 Correct 3 ms 8028 KB Output is correct
51 Correct 4 ms 8536 KB Output is correct
52 Correct 3 ms 8028 KB Output is correct
53 Correct 3 ms 8216 KB Output is correct
54 Correct 3 ms 8204 KB Output is correct
55 Correct 2 ms 8028 KB Output is correct
56 Correct 4 ms 8028 KB Output is correct
57 Correct 3 ms 8284 KB Output is correct
58 Correct 2 ms 8028 KB Output is correct
59 Correct 3 ms 8028 KB Output is correct
60 Correct 3 ms 8284 KB Output is correct
61 Correct 3 ms 8028 KB Output is correct
62 Correct 3 ms 8284 KB Output is correct
63 Correct 3 ms 8024 KB Output is correct
64 Correct 72 ms 18448 KB Output is correct
65 Correct 74 ms 18476 KB Output is correct
66 Correct 103 ms 18544 KB Output is correct
67 Correct 80 ms 18664 KB Output is correct
68 Correct 72 ms 18564 KB Output is correct
69 Correct 93 ms 18576 KB Output is correct
70 Correct 68 ms 18636 KB Output is correct
71 Correct 69 ms 18592 KB Output is correct
72 Correct 103 ms 18644 KB Output is correct
73 Correct 102 ms 30332 KB Output is correct
74 Correct 87 ms 30068 KB Output is correct
75 Correct 71 ms 19716 KB Output is correct
76 Correct 73 ms 19864 KB Output is correct
77 Correct 68 ms 18572 KB Output is correct
78 Correct 70 ms 18576 KB Output is correct
79 Correct 110 ms 18596 KB Output is correct
80 Correct 69 ms 18996 KB Output is correct
81 Correct 55 ms 18636 KB Output is correct
82 Correct 64 ms 18640 KB Output is correct
83 Correct 100 ms 23700 KB Output is correct
84 Correct 86 ms 25700 KB Output is correct
85 Correct 80 ms 25500 KB Output is correct
86 Correct 68 ms 19860 KB Output is correct
87 Correct 97 ms 19908 KB Output is correct
88 Correct 73 ms 19408 KB Output is correct
89 Correct 64 ms 19360 KB Output is correct
90 Correct 62 ms 19192 KB Output is correct
91 Correct 67 ms 19344 KB Output is correct
92 Correct 101 ms 19884 KB Output is correct
93 Correct 70 ms 22120 KB Output is correct
94 Correct 68 ms 23748 KB Output is correct
95 Correct 66 ms 22468 KB Output is correct
96 Correct 63 ms 20476 KB Output is correct
97 Correct 67 ms 19108 KB Output is correct
98 Correct 71 ms 18624 KB Output is correct
99 Correct 98 ms 18692 KB Output is correct
100 Correct 81 ms 21596 KB Output is correct
101 Correct 93 ms 19528 KB Output is correct
102 Correct 61 ms 18788 KB Output is correct
103 Correct 93 ms 18864 KB Output is correct
104 Correct 43 ms 19136 KB Output is correct
105 Correct 92 ms 27096 KB Output is correct
106 Correct 53 ms 19132 KB Output is correct
107 Correct 57 ms 19012 KB Output is correct
108 Correct 86 ms 30900 KB Output is correct
109 Correct 48 ms 19216 KB Output is correct
110 Correct 85 ms 31376 KB Output is correct
111 Correct 107 ms 18440 KB Output is correct