oj.uz

Submission #729735

# Submission time Handle Problem Language Result Execution time Memory
729735 2023-04-24T12:37:13 Z pavement Power Plant (JOI20_power) C++17
100 / 100
 201 ms 33996 KB 
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;
#define int long long
#define mp make_pair
#define mt make_tuple
#define pb push_back
#define ppb pop_back
#define eb emplace_back
#define g0(a) get<0>(a)
#define g1(a) get<1>(a)
#define g2(a) get<2>(a)
#define g3(a) get<3>(a)
#define g4(a) get<4>(a)
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
using db = double;
using ll = long long;
using ld = long double;
using ii = pair<int, int>;
using iii = tuple<int, int, int>;
using iiii = tuple<int, int, int, int>;
using iiiii = tuple<int, int, int, int, int>;
template<class key, class value = null_type, class cmp = less<key> >
using ordered_set = tree<key, value, cmp, rb_tree_tag, tree_order_statistics_node_update>;

int N, mem[200005][2];
char c;
bool S[200005];
vector<int> adj[200005];

int dp(int n, bool b, int e = -1) {
	if (mem[n][b] != -1) return mem[n][b];
	if (S[n]) {
		if (b) {
			int x = -1;
			for (auto u : adj[n]) if (u != e) {
				x += dp(u, 1, n);
			}
			return mem[n][b] = max(x, 1ll);
		} else {
			int x = 0, y = 0, z = 0;
			for (auto u : adj[n]) if (u != e) {
				x = max(x, dp(u, 1, n));
				y += dp(u, 1, n);
				z = max(z, dp(u, 0, n));
			}
			x++;
			y--;
			return mem[n][b] = max({x, y, z});
		}
	} else {
		if (b) {
			int x = 0;
			for (auto u : adj[n]) if (u != e) {
				x += dp(u, 1, n);
			}
			return mem[n][b] = max(x, 0ll);
		} else {
			int x = 0, y = 0, z = 0;
			for (auto u : adj[n]) if (u != e) {
				x = max(x, dp(u, 1, n));
				y += dp(u, 1, n);
				z = max(z, dp(u, 0, n));
			}
			return mem[n][b] = max({x, y, z});
		}
	}
}

main() {
	memset(mem, -1, sizeof mem);
	ios::sync_with_stdio(0);
	cin.tie(0);
	cin >> N;
	for (int u, v, i = 1; i < N; i++) {
		cin >> u >> v;
		adj[u].pb(v);
		adj[v].pb(u);
	}
	for (int i = 1; i <= N; i++) {
		cin >> c;
		S[i] = (c == '1');
	}
	cout << dp(1, 0) << '\n';
}

Compilation message

power.cpp:72:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   72 | main() {
      | ^~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 8148 KB Output is correct
2 Correct 5 ms 8152 KB Output is correct
3 Correct 4 ms 8148 KB Output is correct
4 Correct 5 ms 8148 KB Output is correct
5 Correct 5 ms 8148 KB Output is correct
6 Correct 5 ms 8148 KB Output is correct
7 Correct 4 ms 8148 KB Output is correct
8 Correct 4 ms 8156 KB Output is correct
9 Correct 4 ms 8152 KB Output is correct
10 Correct 4 ms 8160 KB Output is correct
11 Correct 5 ms 8148 KB Output is correct
12 Correct 4 ms 8148 KB Output is correct
13 Correct 4 ms 8152 KB Output is correct
14 Correct 4 ms 8148 KB Output is correct
15 Correct 4 ms 8148 KB Output is correct
16 Correct 4 ms 8160 KB Output is correct
17 Correct 4 ms 8152 KB Output is correct
18 Correct 4 ms 8148 KB Output is correct
19 Correct 4 ms 8148 KB Output is correct
20 Correct 5 ms 8156 KB Output is correct
21 Correct 5 ms 8276 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 8148 KB Output is correct
2 Correct 5 ms 8152 KB Output is correct
3 Correct 4 ms 8148 KB Output is correct
4 Correct 5 ms 8148 KB Output is correct
5 Correct 5 ms 8148 KB Output is correct
6 Correct 5 ms 8148 KB Output is correct
7 Correct 4 ms 8148 KB Output is correct
8 Correct 4 ms 8156 KB Output is correct
9 Correct 4 ms 8152 KB Output is correct
10 Correct 4 ms 8160 KB Output is correct
11 Correct 5 ms 8148 KB Output is correct
12 Correct 4 ms 8148 KB Output is correct
13 Correct 4 ms 8152 KB Output is correct
14 Correct 4 ms 8148 KB Output is correct
15 Correct 4 ms 8148 KB Output is correct
16 Correct 4 ms 8160 KB Output is correct
17 Correct 4 ms 8152 KB Output is correct
18 Correct 4 ms 8148 KB Output is correct
19 Correct 4 ms 8148 KB Output is correct
20 Correct 5 ms 8156 KB Output is correct
21 Correct 5 ms 8276 KB Output is correct
22 Correct 5 ms 8148 KB Output is correct
23 Correct 5 ms 8148 KB Output is correct
24 Correct 6 ms 8148 KB Output is correct
25 Correct 5 ms 8148 KB Output is correct
26 Correct 5 ms 8148 KB Output is correct
27 Correct 6 ms 8296 KB Output is correct
28 Correct 5 ms 8164 KB Output is correct
29 Correct 5 ms 8276 KB Output is correct
30 Correct 5 ms 8220 KB Output is correct
31 Correct 5 ms 8168 KB Output is correct
32 Correct 5 ms 8244 KB Output is correct
33 Correct 5 ms 8224 KB Output is correct
34 Correct 5 ms 8148 KB Output is correct
35 Correct 5 ms 8148 KB Output is correct
36 Correct 5 ms 8148 KB Output is correct
37 Correct 5 ms 8148 KB Output is correct
38 Correct 5 ms 8204 KB Output is correct
39 Correct 6 ms 8276 KB Output is correct
40 Correct 5 ms 8276 KB Output is correct
41 Correct 5 ms 8296 KB Output is correct
42 Correct 5 ms 8276 KB Output is correct
43 Correct 7 ms 8148 KB Output is correct
44 Correct 5 ms 8276 KB Output is correct
45 Correct 5 ms 8264 KB Output is correct
46 Correct 5 ms 8192 KB Output is correct
47 Correct 5 ms 8200 KB Output is correct
48 Correct 5 ms 8216 KB Output is correct
49 Correct 5 ms 8292 KB Output is correct
50 Correct 5 ms 8216 KB Output is correct
51 Correct 5 ms 8276 KB Output is correct
52 Correct 5 ms 8148 KB Output is correct
53 Correct 5 ms 8276 KB Output is correct
54 Correct 5 ms 8168 KB Output is correct
55 Correct 5 ms 8164 KB Output is correct
56 Correct 5 ms 8148 KB Output is correct
57 Correct 5 ms 8292 KB Output is correct
58 Correct 5 ms 8216 KB Output is correct
59 Correct 5 ms 8256 KB Output is correct
60 Correct 4 ms 8276 KB Output is correct
61 Correct 5 ms 8148 KB Output is correct
62 Correct 5 ms 8276 KB Output is correct
63 Correct 5 ms 8164 KB Output is correct

Subtask #3
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 8148 KB Output is correct
2 Correct 5 ms 8152 KB Output is correct
3 Correct 4 ms 8148 KB Output is correct
4 Correct 5 ms 8148 KB Output is correct
5 Correct 5 ms 8148 KB Output is correct
6 Correct 5 ms 8148 KB Output is correct
7 Correct 4 ms 8148 KB Output is correct
8 Correct 4 ms 8156 KB Output is correct
9 Correct 4 ms 8152 KB Output is correct
10 Correct 4 ms 8160 KB Output is correct
11 Correct 5 ms 8148 KB Output is correct
12 Correct 4 ms 8148 KB Output is correct
13 Correct 4 ms 8152 KB Output is correct
14 Correct 4 ms 8148 KB Output is correct
15 Correct 4 ms 8148 KB Output is correct
16 Correct 4 ms 8160 KB Output is correct
17 Correct 4 ms 8152 KB Output is correct
18 Correct 4 ms 8148 KB Output is correct
19 Correct 4 ms 8148 KB Output is correct
20 Correct 5 ms 8156 KB Output is correct
21 Correct 5 ms 8276 KB Output is correct
22 Correct 5 ms 8148 KB Output is correct
23 Correct 5 ms 8148 KB Output is correct
24 Correct 6 ms 8148 KB Output is correct
25 Correct 5 ms 8148 KB Output is correct
26 Correct 5 ms 8148 KB Output is correct
27 Correct 6 ms 8296 KB Output is correct
28 Correct 5 ms 8164 KB Output is correct
29 Correct 5 ms 8276 KB Output is correct
30 Correct 5 ms 8220 KB Output is correct
31 Correct 5 ms 8168 KB Output is correct
32 Correct 5 ms 8244 KB Output is correct
33 Correct 5 ms 8224 KB Output is correct
34 Correct 5 ms 8148 KB Output is correct
35 Correct 5 ms 8148 KB Output is correct
36 Correct 5 ms 8148 KB Output is correct
37 Correct 5 ms 8148 KB Output is correct
38 Correct 5 ms 8204 KB Output is correct
39 Correct 6 ms 8276 KB Output is correct
40 Correct 5 ms 8276 KB Output is correct
41 Correct 5 ms 8296 KB Output is correct
42 Correct 5 ms 8276 KB Output is correct
43 Correct 7 ms 8148 KB Output is correct
44 Correct 5 ms 8276 KB Output is correct
45 Correct 5 ms 8264 KB Output is correct
46 Correct 5 ms 8192 KB Output is correct
47 Correct 5 ms 8200 KB Output is correct
48 Correct 5 ms 8216 KB Output is correct
49 Correct 5 ms 8292 KB Output is correct
50 Correct 5 ms 8216 KB Output is correct
51 Correct 5 ms 8276 KB Output is correct
52 Correct 5 ms 8148 KB Output is correct
53 Correct 5 ms 8276 KB Output is correct
54 Correct 5 ms 8168 KB Output is correct
55 Correct 5 ms 8164 KB Output is correct
56 Correct 5 ms 8148 KB Output is correct
57 Correct 5 ms 8292 KB Output is correct
58 Correct 5 ms 8216 KB Output is correct
59 Correct 5 ms 8256 KB Output is correct
60 Correct 4 ms 8276 KB Output is correct
61 Correct 5 ms 8148 KB Output is correct
62 Correct 5 ms 8276 KB Output is correct
63 Correct 5 ms 8164 KB Output is correct
64 Correct 159 ms 18288 KB Output is correct
65 Correct 184 ms 18412 KB Output is correct
66 Correct 152 ms 18508 KB Output is correct
67 Correct 141 ms 18424 KB Output is correct
68 Correct 162 ms 18380 KB Output is correct
69 Correct 168 ms 18404 KB Output is correct
70 Correct 150 ms 18408 KB Output is correct
71 Correct 174 ms 18408 KB Output is correct
72 Correct 153 ms 18532 KB Output is correct
73 Correct 193 ms 32588 KB Output is correct
74 Correct 201 ms 32460 KB Output is correct
75 Correct 153 ms 19628 KB Output is correct
76 Correct 178 ms 19752 KB Output is correct
77 Correct 188 ms 18376 KB Output is correct
78 Correct 166 ms 18292 KB Output is correct
79 Correct 178 ms 18268 KB Output is correct
80 Correct 177 ms 18388 KB Output is correct
81 Correct 130 ms 18296 KB Output is correct
82 Correct 152 ms 18248 KB Output is correct
83 Correct 180 ms 24540 KB Output is correct
84 Correct 188 ms 27084 KB Output is correct
85 Correct 195 ms 26708 KB Output is correct
86 Correct 168 ms 19968 KB Output is correct
87 Correct 157 ms 19320 KB Output is correct
88 Correct 157 ms 19320 KB Output is correct
89 Correct 149 ms 19356 KB Output is correct
90 Correct 154 ms 19184 KB Output is correct
91 Correct 142 ms 19404 KB Output is correct
92 Correct 160 ms 19788 KB Output is correct
93 Correct 161 ms 22468 KB Output is correct
94 Correct 144 ms 24516 KB Output is correct
95 Correct 140 ms 22948 KB Output is correct
96 Correct 155 ms 21024 KB Output is correct
97 Correct 136 ms 19020 KB Output is correct
98 Correct 139 ms 18508 KB Output is correct
99 Correct 161 ms 18492 KB Output is correct
100 Correct 149 ms 22092 KB Output is correct
101 Correct 172 ms 19600 KB Output is correct
102 Correct 157 ms 18664 KB Output is correct
103 Correct 162 ms 18640 KB Output is correct
104 Correct 90 ms 19004 KB Output is correct
105 Correct 184 ms 28796 KB Output is correct
106 Correct 70 ms 18708 KB Output is correct
107 Correct 98 ms 18804 KB Output is correct
108 Correct 179 ms 33492 KB Output is correct
109 Correct 73 ms 18924 KB Output is correct
110 Correct 176 ms 33996 KB Output is correct
111 Correct 158 ms 18352 KB Output is correct