oj.uz

답안 #696472

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
696472 2023-02-06T15:10:21 Z dsyz Power Plant (JOI20_power) C++17
100 / 100
 171 ms 29876 KB 
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define MAXN (200005)
vector<ll> v[MAXN];
bool generator[MAXN];
ll dp[MAXN];
ll ans = 0;
void dfs(ll x,ll p){
    ll maximum = 0;
    ll sum = 0;
    for(auto u : v[x]){
        if(u != p){
            dfs(u,x);
            maximum = max(maximum,dp[u]);
            sum += dp[u];
        }
    }
    if(generator[x]){
		dp[x] = max(1ll,sum - generator[x]);
	}else{
		dp[x] = sum - generator[x];
	}
    ans = max(ans,dp[x]);
    ans = max(ans,maximum + generator[x]);
}
int main(){
	ios_base::sync_with_stdio(false);cin.tie(0);
	ll N;
	cin>>N;
	for(ll i = 0;i < N - 1;i++){
	    ll a,b;
	    cin>>a>>b;
	    a--;
	    b--;
	    v[a].push_back(b);
	    v[b].push_back(a);
	}
	string s;
	cin>>s;
	for(ll i = 0;i < N;i++){
	    if(s[i] == '0') generator[i] = 0;
	    else generator[i] = 1;
	}
	dfs(0,-1);
	cout<<ans<<'\n';
}

Subtask #1
6.0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 4948 KB Output is correct
2 Correct 3 ms 5036 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 3 ms 5036 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 2 ms 4948 KB Output is correct
7 Correct 2 ms 4948 KB Output is correct
8 Correct 2 ms 4948 KB Output is correct
9 Correct 3 ms 4948 KB Output is correct
10 Correct 3 ms 5040 KB Output is correct
11 Correct 3 ms 5040 KB Output is correct
12 Correct 3 ms 5036 KB Output is correct
13 Correct 4 ms 4948 KB Output is correct
14 Correct 3 ms 4948 KB Output is correct
15 Correct 3 ms 4948 KB Output is correct
16 Correct 3 ms 4948 KB Output is correct
17 Correct 2 ms 5032 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 3 ms 4948 KB Output is correct
20 Correct 3 ms 4948 KB Output is correct
21 Correct 2 ms 4948 KB Output is correct

Subtask #2
41.0 / 41.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 4948 KB Output is correct
2 Correct 3 ms 5036 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 3 ms 5036 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 2 ms 4948 KB Output is correct
7 Correct 2 ms 4948 KB Output is correct
8 Correct 2 ms 4948 KB Output is correct
9 Correct 3 ms 4948 KB Output is correct
10 Correct 3 ms 5040 KB Output is correct
11 Correct 3 ms 5040 KB Output is correct
12 Correct 3 ms 5036 KB Output is correct
13 Correct 4 ms 4948 KB Output is correct
14 Correct 3 ms 4948 KB Output is correct
15 Correct 3 ms 4948 KB Output is correct
16 Correct 3 ms 4948 KB Output is correct
17 Correct 2 ms 5032 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 3 ms 4948 KB Output is correct
20 Correct 3 ms 4948 KB Output is correct
21 Correct 2 ms 4948 KB Output is correct
22 Correct 4 ms 5076 KB Output is correct
23 Correct 3 ms 5076 KB Output is correct
24 Correct 3 ms 5076 KB Output is correct
25 Correct 3 ms 5076 KB Output is correct
26 Correct 3 ms 5076 KB Output is correct
27 Correct 3 ms 5076 KB Output is correct
28 Correct 3 ms 5044 KB Output is correct
29 Correct 3 ms 5176 KB Output is correct
30 Correct 3 ms 5176 KB Output is correct
31 Correct 3 ms 5116 KB Output is correct
32 Correct 3 ms 5048 KB Output is correct
33 Correct 4 ms 5048 KB Output is correct
34 Correct 3 ms 5076 KB Output is correct
35 Correct 3 ms 5076 KB Output is correct
36 Correct 3 ms 5048 KB Output is correct
37 Correct 4 ms 5204 KB Output is correct
38 Correct 3 ms 5048 KB Output is correct
39 Correct 3 ms 5180 KB Output is correct
40 Correct 4 ms 5076 KB Output is correct
41 Correct 4 ms 5204 KB Output is correct
42 Correct 4 ms 5076 KB Output is correct
43 Correct 4 ms 5076 KB Output is correct
44 Correct 4 ms 5076 KB Output is correct
45 Correct 3 ms 5076 KB Output is correct
46 Correct 3 ms 5076 KB Output is correct
47 Correct 4 ms 5076 KB Output is correct
48 Correct 4 ms 5204 KB Output is correct
49 Correct 4 ms 5204 KB Output is correct
50 Correct 3 ms 5176 KB Output is correct
51 Correct 3 ms 5176 KB Output is correct
52 Correct 3 ms 5048 KB Output is correct
53 Correct 3 ms 5096 KB Output is correct
54 Correct 5 ms 5076 KB Output is correct
55 Correct 3 ms 5100 KB Output is correct
56 Correct 4 ms 5044 KB Output is correct
57 Correct 3 ms 5172 KB Output is correct
58 Correct 4 ms 5076 KB Output is correct
59 Correct 3 ms 5052 KB Output is correct
60 Correct 3 ms 5172 KB Output is correct
61 Correct 3 ms 5076 KB Output is correct
62 Correct 3 ms 5172 KB Output is correct
63 Correct 3 ms 5076 KB Output is correct

Subtask #3
53.0 / 53.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 4948 KB Output is correct
2 Correct 3 ms 5036 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 3 ms 5036 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 2 ms 4948 KB Output is correct
7 Correct 2 ms 4948 KB Output is correct
8 Correct 2 ms 4948 KB Output is correct
9 Correct 3 ms 4948 KB Output is correct
10 Correct 3 ms 5040 KB Output is correct
11 Correct 3 ms 5040 KB Output is correct
12 Correct 3 ms 5036 KB Output is correct
13 Correct 4 ms 4948 KB Output is correct
14 Correct 3 ms 4948 KB Output is correct
15 Correct 3 ms 4948 KB Output is correct
16 Correct 3 ms 4948 KB Output is correct
17 Correct 2 ms 5032 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 3 ms 4948 KB Output is correct
20 Correct 3 ms 4948 KB Output is correct
21 Correct 2 ms 4948 KB Output is correct
22 Correct 4 ms 5076 KB Output is correct
23 Correct 3 ms 5076 KB Output is correct
24 Correct 3 ms 5076 KB Output is correct
25 Correct 3 ms 5076 KB Output is correct
26 Correct 3 ms 5076 KB Output is correct
27 Correct 3 ms 5076 KB Output is correct
28 Correct 3 ms 5044 KB Output is correct
29 Correct 3 ms 5176 KB Output is correct
30 Correct 3 ms 5176 KB Output is correct
31 Correct 3 ms 5116 KB Output is correct
32 Correct 3 ms 5048 KB Output is correct
33 Correct 4 ms 5048 KB Output is correct
34 Correct 3 ms 5076 KB Output is correct
35 Correct 3 ms 5076 KB Output is correct
36 Correct 3 ms 5048 KB Output is correct
37 Correct 4 ms 5204 KB Output is correct
38 Correct 3 ms 5048 KB Output is correct
39 Correct 3 ms 5180 KB Output is correct
40 Correct 4 ms 5076 KB Output is correct
41 Correct 4 ms 5204 KB Output is correct
42 Correct 4 ms 5076 KB Output is correct
43 Correct 4 ms 5076 KB Output is correct
44 Correct 4 ms 5076 KB Output is correct
45 Correct 3 ms 5076 KB Output is correct
46 Correct 3 ms 5076 KB Output is correct
47 Correct 4 ms 5076 KB Output is correct
48 Correct 4 ms 5204 KB Output is correct
49 Correct 4 ms 5204 KB Output is correct
50 Correct 3 ms 5176 KB Output is correct
51 Correct 3 ms 5176 KB Output is correct
52 Correct 3 ms 5048 KB Output is correct
53 Correct 3 ms 5096 KB Output is correct
54 Correct 5 ms 5076 KB Output is correct
55 Correct 3 ms 5100 KB Output is correct
56 Correct 4 ms 5044 KB Output is correct
57 Correct 3 ms 5172 KB Output is correct
58 Correct 4 ms 5076 KB Output is correct
59 Correct 3 ms 5052 KB Output is correct
60 Correct 3 ms 5172 KB Output is correct
61 Correct 3 ms 5076 KB Output is correct
62 Correct 3 ms 5172 KB Output is correct
63 Correct 3 ms 5076 KB Output is correct
64 Correct 115 ms 17168 KB Output is correct
65 Correct 134 ms 17140 KB Output is correct
66 Correct 148 ms 17148 KB Output is correct
67 Correct 117 ms 17044 KB Output is correct
68 Correct 129 ms 17064 KB Output is correct
69 Correct 115 ms 17160 KB Output is correct
70 Correct 125 ms 17092 KB Output is correct
71 Correct 111 ms 17140 KB Output is correct
72 Correct 116 ms 17132 KB Output is correct
73 Correct 162 ms 28688 KB Output is correct
74 Correct 137 ms 28748 KB Output is correct
75 Correct 120 ms 18340 KB Output is correct
76 Correct 130 ms 18336 KB Output is correct
77 Correct 135 ms 17216 KB Output is correct
78 Correct 135 ms 17040 KB Output is correct
79 Correct 130 ms 17080 KB Output is correct
80 Correct 159 ms 17032 KB Output is correct
81 Correct 93 ms 17092 KB Output is correct
82 Correct 114 ms 17152 KB Output is correct
83 Correct 171 ms 22156 KB Output is correct
84 Correct 132 ms 24428 KB Output is correct
85 Correct 121 ms 23960 KB Output is correct
86 Correct 132 ms 18444 KB Output is correct
87 Correct 125 ms 17924 KB Output is correct
88 Correct 116 ms 17936 KB Output is correct
89 Correct 120 ms 18060 KB Output is correct
90 Correct 122 ms 17820 KB Output is correct
91 Correct 120 ms 18036 KB Output is correct
92 Correct 105 ms 18372 KB Output is correct
93 Correct 110 ms 20656 KB Output is correct
94 Correct 107 ms 22204 KB Output is correct
95 Correct 110 ms 20976 KB Output is correct
96 Correct 111 ms 19184 KB Output is correct
97 Correct 120 ms 17708 KB Output is correct
98 Correct 117 ms 17248 KB Output is correct
99 Correct 126 ms 17248 KB Output is correct
100 Correct 108 ms 20184 KB Output is correct
101 Correct 105 ms 17988 KB Output is correct
102 Correct 104 ms 17396 KB Output is correct
103 Correct 122 ms 17396 KB Output is correct
104 Correct 69 ms 17824 KB Output is correct
105 Correct 143 ms 25568 KB Output is correct
106 Correct 76 ms 17724 KB Output is correct
107 Correct 85 ms 17684 KB Output is correct
108 Correct 141 ms 29520 KB Output is correct
109 Correct 74 ms 17744 KB Output is correct
110 Correct 127 ms 29876 KB Output is correct
111 Correct 102 ms 17036 KB Output is correct