oj.uz

Submission #516584

# Submission time Handle Problem Language Result Execution time Memory
516584 2022-01-21T13:59:22 Z flappybird Power Plant (JOI20_power) C++17
100 / 100
 252 ms 37132 KB 
#include <bits/stdc++.h>
#pragma GCC optimize("O3")
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
#pragma GCC target("avx,avx2,fma")
using namespace std;
typedef long long ll;
typedef pair<ll, ll> pll;
#define MAX 200010
#define MAXS 20
#define INF 1000000000000000001
#define bb ' '
#define ln '\n'
#define Ln '\n'
vector<ll> adj[MAX];
ll ans = 0;
ll chk[MAX];
ll dp1[MAX];
ll dp2[MAX];
ll dp3[MAX];
void dfs1(ll x = 1, ll p = 0) {
	if (chk[x]) dp1[x] = 1;
	for (auto v : adj[x]) {
		if (v == p) continue;
		dfs1(v, x);
		if (dp1[v]) dp1[x] = 1;
	}
}
void dfs2(ll x = 1, ll p = 0) {
	for (auto v : adj[x]) {
		if (v == p) continue;
		dfs2(v, x);
		dp2[x] += dp2[v];
	}
	dp2[x] = max(dp1[x], max(dp2[x] - chk[x], chk[x]));
	ans = max(ans, dp2[x]);
}
void dfs3(ll x = 1, ll p = 0) {
	ll mx = 0;
	ll mx2 = 0;
	for (auto v : adj[x]) {
		if (v == p) continue;
		dfs3(v, x);
		mx2 = max(mx2, dp2[v]);
		mx = max(mx, dp3[v]);
	}
	dp3[x] = max(mx, mx2 + chk[x]);
	ans = max(ans, dp3[x]);
}
signed main() {
	ios::sync_with_stdio(false), cin.tie(0);
	ll N;
	cin >> N;
	ll i;
	ll a, b;
	for (i = 1; i < N; i++) cin >> a >> b, adj[a].push_back(b), adj[b].push_back(a);
	string s;
	cin >> s;
	for (i = 0; i < N; i++) chk[i + 1] = s[i] - '0';
	dfs1();
	dfs2();
	dfs3();
	cout << ans << ln;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 4940 KB Output is correct
2 Correct 3 ms 5024 KB Output is correct
3 Correct 2 ms 4924 KB Output is correct
4 Correct 4 ms 4940 KB Output is correct
5 Correct 3 ms 4940 KB Output is correct
6 Correct 3 ms 4940 KB Output is correct
7 Correct 3 ms 5020 KB Output is correct
8 Correct 4 ms 5040 KB Output is correct
9 Correct 3 ms 5028 KB Output is correct
10 Correct 4 ms 4940 KB Output is correct
11 Correct 2 ms 4940 KB Output is correct
12 Correct 3 ms 4940 KB Output is correct
13 Correct 3 ms 4940 KB Output is correct
14 Correct 3 ms 5024 KB Output is correct
15 Correct 3 ms 5024 KB Output is correct
16 Correct 3 ms 5020 KB Output is correct
17 Correct 3 ms 5032 KB Output is correct
18 Correct 3 ms 4940 KB Output is correct
19 Correct 3 ms 4940 KB Output is correct
20 Correct 4 ms 5028 KB Output is correct
21 Correct 3 ms 5040 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 4940 KB Output is correct
2 Correct 3 ms 5024 KB Output is correct
3 Correct 2 ms 4924 KB Output is correct
4 Correct 4 ms 4940 KB Output is correct
5 Correct 3 ms 4940 KB Output is correct
6 Correct 3 ms 4940 KB Output is correct
7 Correct 3 ms 5020 KB Output is correct
8 Correct 4 ms 5040 KB Output is correct
9 Correct 3 ms 5028 KB Output is correct
10 Correct 4 ms 4940 KB Output is correct
11 Correct 2 ms 4940 KB Output is correct
12 Correct 3 ms 4940 KB Output is correct
13 Correct 3 ms 4940 KB Output is correct
14 Correct 3 ms 5024 KB Output is correct
15 Correct 3 ms 5024 KB Output is correct
16 Correct 3 ms 5020 KB Output is correct
17 Correct 3 ms 5032 KB Output is correct
18 Correct 3 ms 4940 KB Output is correct
19 Correct 3 ms 4940 KB Output is correct
20 Correct 4 ms 5028 KB Output is correct
21 Correct 3 ms 5040 KB Output is correct
22 Correct 5 ms 5196 KB Output is correct
23 Correct 5 ms 5196 KB Output is correct
24 Correct 4 ms 5196 KB Output is correct
25 Correct 5 ms 5160 KB Output is correct
26 Correct 5 ms 5164 KB Output is correct
27 Correct 4 ms 5184 KB Output is correct
28 Correct 3 ms 5196 KB Output is correct
29 Correct 4 ms 5324 KB Output is correct
30 Correct 5 ms 5196 KB Output is correct
31 Correct 5 ms 5168 KB Output is correct
32 Correct 4 ms 5096 KB Output is correct
33 Correct 4 ms 5160 KB Output is correct
34 Correct 4 ms 5160 KB Output is correct
35 Correct 4 ms 5092 KB Output is correct
36 Correct 4 ms 5196 KB Output is correct
37 Correct 4 ms 5196 KB Output is correct
38 Correct 4 ms 5196 KB Output is correct
39 Correct 5 ms 5196 KB Output is correct
40 Correct 5 ms 5160 KB Output is correct
41 Correct 5 ms 5196 KB Output is correct
42 Correct 4 ms 5164 KB Output is correct
43 Correct 3 ms 5196 KB Output is correct
44 Correct 3 ms 5196 KB Output is correct
45 Correct 5 ms 5160 KB Output is correct
46 Correct 4 ms 5168 KB Output is correct
47 Correct 4 ms 5220 KB Output is correct
48 Correct 3 ms 5196 KB Output is correct
49 Correct 4 ms 5216 KB Output is correct
50 Correct 4 ms 5196 KB Output is correct
51 Correct 3 ms 5196 KB Output is correct
52 Correct 4 ms 5196 KB Output is correct
53 Correct 5 ms 5160 KB Output is correct
54 Correct 4 ms 5196 KB Output is correct
55 Correct 3 ms 5196 KB Output is correct
56 Correct 4 ms 5164 KB Output is correct
57 Correct 4 ms 5292 KB Output is correct
58 Correct 6 ms 5212 KB Output is correct
59 Correct 5 ms 5208 KB Output is correct
60 Correct 4 ms 5196 KB Output is correct
61 Correct 4 ms 5064 KB Output is correct
62 Correct 6 ms 5324 KB Output is correct
63 Correct 6 ms 5196 KB Output is correct

Subtask #3
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 4940 KB Output is correct
2 Correct 3 ms 5024 KB Output is correct
3 Correct 2 ms 4924 KB Output is correct
4 Correct 4 ms 4940 KB Output is correct
5 Correct 3 ms 4940 KB Output is correct
6 Correct 3 ms 4940 KB Output is correct
7 Correct 3 ms 5020 KB Output is correct
8 Correct 4 ms 5040 KB Output is correct
9 Correct 3 ms 5028 KB Output is correct
10 Correct 4 ms 4940 KB Output is correct
11 Correct 2 ms 4940 KB Output is correct
12 Correct 3 ms 4940 KB Output is correct
13 Correct 3 ms 4940 KB Output is correct
14 Correct 3 ms 5024 KB Output is correct
15 Correct 3 ms 5024 KB Output is correct
16 Correct 3 ms 5020 KB Output is correct
17 Correct 3 ms 5032 KB Output is correct
18 Correct 3 ms 4940 KB Output is correct
19 Correct 3 ms 4940 KB Output is correct
20 Correct 4 ms 5028 KB Output is correct
21 Correct 3 ms 5040 KB Output is correct
22 Correct 5 ms 5196 KB Output is correct
23 Correct 5 ms 5196 KB Output is correct
24 Correct 4 ms 5196 KB Output is correct
25 Correct 5 ms 5160 KB Output is correct
26 Correct 5 ms 5164 KB Output is correct
27 Correct 4 ms 5184 KB Output is correct
28 Correct 3 ms 5196 KB Output is correct
29 Correct 4 ms 5324 KB Output is correct
30 Correct 5 ms 5196 KB Output is correct
31 Correct 5 ms 5168 KB Output is correct
32 Correct 4 ms 5096 KB Output is correct
33 Correct 4 ms 5160 KB Output is correct
34 Correct 4 ms 5160 KB Output is correct
35 Correct 4 ms 5092 KB Output is correct
36 Correct 4 ms 5196 KB Output is correct
37 Correct 4 ms 5196 KB Output is correct
38 Correct 4 ms 5196 KB Output is correct
39 Correct 5 ms 5196 KB Output is correct
40 Correct 5 ms 5160 KB Output is correct
41 Correct 5 ms 5196 KB Output is correct
42 Correct 4 ms 5164 KB Output is correct
43 Correct 3 ms 5196 KB Output is correct
44 Correct 3 ms 5196 KB Output is correct
45 Correct 5 ms 5160 KB Output is correct
46 Correct 4 ms 5168 KB Output is correct
47 Correct 4 ms 5220 KB Output is correct
48 Correct 3 ms 5196 KB Output is correct
49 Correct 4 ms 5216 KB Output is correct
50 Correct 4 ms 5196 KB Output is correct
51 Correct 3 ms 5196 KB Output is correct
52 Correct 4 ms 5196 KB Output is correct
53 Correct 5 ms 5160 KB Output is correct
54 Correct 4 ms 5196 KB Output is correct
55 Correct 3 ms 5196 KB Output is correct
56 Correct 4 ms 5164 KB Output is correct
57 Correct 4 ms 5292 KB Output is correct
58 Correct 6 ms 5212 KB Output is correct
59 Correct 5 ms 5208 KB Output is correct
60 Correct 4 ms 5196 KB Output is correct
61 Correct 4 ms 5064 KB Output is correct
62 Correct 6 ms 5324 KB Output is correct
63 Correct 6 ms 5196 KB Output is correct
64 Correct 200 ms 21536 KB Output is correct
65 Correct 206 ms 21660 KB Output is correct
66 Correct 189 ms 21636 KB Output is correct
67 Correct 198 ms 21588 KB Output is correct
68 Correct 199 ms 21724 KB Output is correct
69 Correct 208 ms 21632 KB Output is correct
70 Correct 195 ms 21608 KB Output is correct
71 Correct 207 ms 21664 KB Output is correct
72 Correct 224 ms 20620 KB Output is correct
73 Correct 252 ms 35752 KB Output is correct
74 Correct 217 ms 35652 KB Output is correct
75 Correct 196 ms 22756 KB Output is correct
76 Correct 187 ms 22800 KB Output is correct
77 Correct 212 ms 21556 KB Output is correct
78 Correct 242 ms 21612 KB Output is correct
79 Correct 225 ms 21576 KB Output is correct
80 Correct 188 ms 21624 KB Output is correct
81 Correct 153 ms 21680 KB Output is correct
82 Correct 179 ms 21640 KB Output is correct
83 Correct 217 ms 27784 KB Output is correct
84 Correct 212 ms 30256 KB Output is correct
85 Correct 198 ms 29844 KB Output is correct
86 Correct 206 ms 23164 KB Output is correct
87 Correct 209 ms 22500 KB Output is correct
88 Correct 188 ms 22640 KB Output is correct
89 Correct 190 ms 22664 KB Output is correct
90 Correct 194 ms 22324 KB Output is correct
91 Correct 188 ms 22720 KB Output is correct
92 Correct 233 ms 23028 KB Output is correct
93 Correct 177 ms 25880 KB Output is correct
94 Correct 198 ms 27864 KB Output is correct
95 Correct 161 ms 26292 KB Output is correct
96 Correct 175 ms 24176 KB Output is correct
97 Correct 190 ms 22272 KB Output is correct
98 Correct 168 ms 21812 KB Output is correct
99 Correct 220 ms 21680 KB Output is correct
100 Correct 183 ms 25252 KB Output is correct
101 Correct 210 ms 22820 KB Output is correct
102 Correct 206 ms 21884 KB Output is correct
103 Correct 192 ms 21900 KB Output is correct
104 Correct 110 ms 20688 KB Output is correct
105 Correct 221 ms 32000 KB Output is correct
106 Correct 105 ms 22128 KB Output is correct
107 Correct 98 ms 22176 KB Output is correct
108 Correct 238 ms 36796 KB Output is correct
109 Correct 95 ms 20760 KB Output is correct
110 Correct 245 ms 37132 KB Output is correct
111 Correct 185 ms 21516 KB Output is correct