oj.uz

Submission #763277

# Submission time Handle Problem Language Result Execution time Memory
763277 2023-06-22T07:34:09 Z vjudge1 Power Plant (JOI20_power) C++17
100 / 100
 127 ms 28540 KB 
#include<bits/stdc++.h>

using namespace std;
typedef long long int ll;
typedef pair<ll, ll> pii;
#define fi first
#define se second
#define gcd __gcd
#define endl '\n'
const int N=200050,M=1000000007;
const ll INF=0x3f3f3f3f3f3f3f3f;

ll n, u, v, cnt[N], dp[N], ans;
bool plant[N], visited[N];
char c;
vector<vector<ll>> adj;

void dfs(ll u){
	visited[u]=1;
	ll mx=0, ct=0, pos=0;
	for(auto v:adj[u]){
		if(!visited[v]){ 
			dfs(v);
			cnt[u]+=cnt[v];
			mx=max(mx, cnt[v]);
			if(cnt[v]) ++ct, pos=v;
		}
	}
	if(plant[u]) dp[u]=mx+1;
	if(ct>1) dp[u]=max(dp[u], cnt[u]-plant[u]);
	else dp[u]=max(dp[u], dp[pos]);
	cnt[u]=max(cnt[u]-plant[u], 1LL*plant[u]);
	// cout<<u<<" "<<dp[u]<<" "<<cnt[u]<<endl;
	ans=max(ans, dp[u]);
}

signed main(){
	ios_base::sync_with_stdio(NULL); 
	cin.tie(nullptr); cout.tie(nullptr);
	cin>>n;
	adj.assign(n+1, {});
	for(ll i=1; i<n; ++i){
		cin>>u>>v;
		adj[u].emplace_back(v);
		adj[v].emplace_back(u);
	}
	for(ll i=1; i<=n; ++i){
		cin>>c;
		plant[i]=c-'0';
		// if(plant[i]) cout<<i<<" ";
	}
	// cout<<endl;
	dfs(1);
	cout<<ans;
    return 0;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 0 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 0 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 212 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 0 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 0 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 468 KB Output is correct
23 Correct 1 ms 468 KB Output is correct
24 Correct 1 ms 468 KB Output is correct
25 Correct 1 ms 468 KB Output is correct
26 Correct 1 ms 468 KB Output is correct
27 Correct 1 ms 468 KB Output is correct
28 Correct 1 ms 468 KB Output is correct
29 Correct 1 ms 596 KB Output is correct
30 Correct 1 ms 468 KB Output is correct
31 Correct 1 ms 468 KB Output is correct
32 Correct 1 ms 468 KB Output is correct
33 Correct 1 ms 468 KB Output is correct
34 Correct 1 ms 432 KB Output is correct
35 Correct 1 ms 468 KB Output is correct
36 Correct 1 ms 468 KB Output is correct
37 Correct 1 ms 468 KB Output is correct
38 Correct 1 ms 468 KB Output is correct
39 Correct 1 ms 468 KB Output is correct
40 Correct 1 ms 468 KB Output is correct
41 Correct 1 ms 468 KB Output is correct
42 Correct 1 ms 468 KB Output is correct
43 Correct 1 ms 468 KB Output is correct
44 Correct 1 ms 468 KB Output is correct
45 Correct 1 ms 468 KB Output is correct
46 Correct 1 ms 468 KB Output is correct
47 Correct 1 ms 468 KB Output is correct
48 Correct 1 ms 468 KB Output is correct
49 Correct 1 ms 468 KB Output is correct
50 Correct 1 ms 468 KB Output is correct
51 Correct 1 ms 468 KB Output is correct
52 Correct 1 ms 468 KB Output is correct
53 Correct 1 ms 468 KB Output is correct
54 Correct 1 ms 468 KB Output is correct
55 Correct 1 ms 468 KB Output is correct
56 Correct 1 ms 468 KB Output is correct
57 Correct 1 ms 556 KB Output is correct
58 Correct 1 ms 468 KB Output is correct
59 Correct 1 ms 468 KB Output is correct
60 Correct 1 ms 468 KB Output is correct
61 Correct 1 ms 468 KB Output is correct
62 Correct 1 ms 468 KB Output is correct
63 Correct 2 ms 468 KB Output is correct

Subtask #3
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 0 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 0 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 468 KB Output is correct
23 Correct 1 ms 468 KB Output is correct
24 Correct 1 ms 468 KB Output is correct
25 Correct 1 ms 468 KB Output is correct
26 Correct 1 ms 468 KB Output is correct
27 Correct 1 ms 468 KB Output is correct
28 Correct 1 ms 468 KB Output is correct
29 Correct 1 ms 596 KB Output is correct
30 Correct 1 ms 468 KB Output is correct
31 Correct 1 ms 468 KB Output is correct
32 Correct 1 ms 468 KB Output is correct
33 Correct 1 ms 468 KB Output is correct
34 Correct 1 ms 432 KB Output is correct
35 Correct 1 ms 468 KB Output is correct
36 Correct 1 ms 468 KB Output is correct
37 Correct 1 ms 468 KB Output is correct
38 Correct 1 ms 468 KB Output is correct
39 Correct 1 ms 468 KB Output is correct
40 Correct 1 ms 468 KB Output is correct
41 Correct 1 ms 468 KB Output is correct
42 Correct 1 ms 468 KB Output is correct
43 Correct 1 ms 468 KB Output is correct
44 Correct 1 ms 468 KB Output is correct
45 Correct 1 ms 468 KB Output is correct
46 Correct 1 ms 468 KB Output is correct
47 Correct 1 ms 468 KB Output is correct
48 Correct 1 ms 468 KB Output is correct
49 Correct 1 ms 468 KB Output is correct
50 Correct 1 ms 468 KB Output is correct
51 Correct 1 ms 468 KB Output is correct
52 Correct 1 ms 468 KB Output is correct
53 Correct 1 ms 468 KB Output is correct
54 Correct 1 ms 468 KB Output is correct
55 Correct 1 ms 468 KB Output is correct
56 Correct 1 ms 468 KB Output is correct
57 Correct 1 ms 556 KB Output is correct
58 Correct 1 ms 468 KB Output is correct
59 Correct 1 ms 468 KB Output is correct
60 Correct 1 ms 468 KB Output is correct
61 Correct 1 ms 468 KB Output is correct
62 Correct 1 ms 468 KB Output is correct
63 Correct 2 ms 468 KB Output is correct
64 Correct 102 ms 15844 KB Output is correct
65 Correct 96 ms 15820 KB Output is correct
66 Correct 101 ms 15860 KB Output is correct
67 Correct 80 ms 15820 KB Output is correct
68 Correct 79 ms 15884 KB Output is correct
69 Correct 116 ms 15796 KB Output is correct
70 Correct 109 ms 15796 KB Output is correct
71 Correct 79 ms 15820 KB Output is correct
72 Correct 96 ms 15952 KB Output is correct
73 Correct 114 ms 27440 KB Output is correct
74 Correct 98 ms 27452 KB Output is correct
75 Correct 82 ms 16996 KB Output is correct
76 Correct 84 ms 17100 KB Output is correct
77 Correct 124 ms 15848 KB Output is correct
78 Correct 85 ms 15824 KB Output is correct
79 Correct 127 ms 15784 KB Output is correct
80 Correct 127 ms 15740 KB Output is correct
81 Correct 67 ms 15836 KB Output is correct
82 Correct 109 ms 15724 KB Output is correct
83 Correct 105 ms 20956 KB Output is correct
84 Correct 116 ms 23112 KB Output is correct
85 Correct 120 ms 22696 KB Output is correct
86 Correct 104 ms 17172 KB Output is correct
87 Correct 97 ms 16748 KB Output is correct
88 Correct 78 ms 16648 KB Output is correct
89 Correct 81 ms 16720 KB Output is correct
90 Correct 99 ms 16500 KB Output is correct
91 Correct 104 ms 16708 KB Output is correct
92 Correct 93 ms 17036 KB Output is correct
93 Correct 109 ms 19324 KB Output is correct
94 Correct 76 ms 20956 KB Output is correct
95 Correct 76 ms 19644 KB Output is correct
96 Correct 76 ms 17900 KB Output is correct
97 Correct 70 ms 16400 KB Output is correct
98 Correct 91 ms 16032 KB Output is correct
99 Correct 73 ms 15960 KB Output is correct
100 Correct 97 ms 18828 KB Output is correct
101 Correct 81 ms 16776 KB Output is correct
102 Correct 78 ms 16092 KB Output is correct
103 Correct 112 ms 16088 KB Output is correct
104 Correct 56 ms 16324 KB Output is correct
105 Correct 92 ms 24288 KB Output is correct
106 Correct 50 ms 16324 KB Output is correct
107 Correct 52 ms 16252 KB Output is correct
108 Correct 93 ms 28140 KB Output is correct
109 Correct 51 ms 16320 KB Output is correct
110 Correct 99 ms 28540 KB Output is correct
111 Correct 82 ms 15820 KB Output is correct