oj.uz

Submission #959140

# Submission time Handle Problem Language Result Execution time Memory
959140 2024-04-07T14:12:20 Z Pring Power Plant (JOI20_power) C++17
100 / 100
 583 ms 26108 KB 
#include <bits/stdc++.h>
using namespace std;

#ifdef MIKU
string dbmc = "\033[1;38;2;57;197;187m", dbrs = "\033[0m";
#define debug(x...) cout << dbmc << "[" << #x << "]: ", dout(x)
void dout() { cout << dbrs << endl; }
template <typename T, typename ...U>
void dout(T t, U ...u) { cout << t << (sizeof...(u) ? ", " : ""); dout(u...); }
#else
#define debug(...) 39
#endif

#define fs first
#define sc second
#define mp make_pair
#define FOR(i, j, k) for (int i = j, Z = k; i < Z; i++)
typedef pair<int, int> pii;

const int MXN = 200005;
int n;
vector<int> edge[MXN];
string s;
int sz[MXN], ans;
bitset<MXN> ban;

void GET_SZ(int id, int par) {
	sz[id] = 1;
	for (auto &i : edge[id]) {
		if (i == par) continue;
		if (ban[i]) continue;
		GET_SZ(i, id);
		sz[id] += sz[i];
	}
}

int GET_CD(int id, int par, int S) {
	for (auto &i : edge[id]) {
		if (i == par) continue;
		if (ban[i]) continue;
		if (sz[i] > S / 2) return GET_CD(i, id, S);
	}
	return id;
}

int DP(int id, int par) {
	int ans = ((s[id] & 1) ? -1 : 0);
	for (auto &i : edge[id]) {
		if (i == par) continue;
		if (ban[i]) continue;
		ans += DP(i, id);
	}
	if (s[id] & 1) ans = max(ans, 1);
	return ans;
}

int calc(int id) {
	int now = 0, cnt = 0, big = 0;
	for (auto &i : edge[id]) {
		if (ban[i]) continue;
		int x = DP(i, id);
		now += x;
		big = max(big, x);
		if (x) cnt++;
	}
	if (cnt == 0) return (s[id] & 1);
	if (cnt == 1) return now + (s[id] & 1);
	if (s[id] & 1) return max(1 + big, now - 1);
	return now;
}

void CD(int id) {
	GET_SZ(id, 0);
	int ct = GET_CD(id, 0, sz[id]);
	ans = max(ans, calc(ct));
	ban[ct] = true;
	for (auto &i : edge[ct]) {
		if (ban[i]) continue;
		CD(i);
	}
}

void miku() {
	int x, y;
	cin >> n;
	FOR(i, 1, n) {
		cin >> x >> y;
		edge[x].push_back(y);
		edge[y].push_back(x);
	}
	cin >> s;
	s = " " + s;
	CD(1);
	cout << ans << '\n';
}

int32_t main() {
	cin.tie(0) -> sync_with_stdio(false);
	cin.exceptions(cin.failbit);
	miku();
	return 0;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 5724 KB Output is correct
2 Correct 1 ms 5724 KB Output is correct
3 Correct 2 ms 5976 KB Output is correct
4 Correct 2 ms 5724 KB Output is correct
5 Correct 1 ms 5724 KB Output is correct
6 Correct 2 ms 5720 KB Output is correct
7 Correct 2 ms 5724 KB Output is correct
8 Correct 2 ms 5724 KB Output is correct
9 Correct 2 ms 5724 KB Output is correct
10 Correct 2 ms 5724 KB Output is correct
11 Correct 2 ms 5720 KB Output is correct
12 Correct 2 ms 5724 KB Output is correct
13 Correct 2 ms 5720 KB Output is correct
14 Correct 1 ms 5724 KB Output is correct
15 Correct 2 ms 5724 KB Output is correct
16 Correct 2 ms 5724 KB Output is correct
17 Correct 2 ms 5720 KB Output is correct
18 Correct 2 ms 5724 KB Output is correct
19 Correct 2 ms 5724 KB Output is correct
20 Correct 2 ms 5724 KB Output is correct
21 Correct 2 ms 5788 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 5724 KB Output is correct
2 Correct 1 ms 5724 KB Output is correct
3 Correct 2 ms 5976 KB Output is correct
4 Correct 2 ms 5724 KB Output is correct
5 Correct 1 ms 5724 KB Output is correct
6 Correct 2 ms 5720 KB Output is correct
7 Correct 2 ms 5724 KB Output is correct
8 Correct 2 ms 5724 KB Output is correct
9 Correct 2 ms 5724 KB Output is correct
10 Correct 2 ms 5724 KB Output is correct
11 Correct 2 ms 5720 KB Output is correct
12 Correct 2 ms 5724 KB Output is correct
13 Correct 2 ms 5720 KB Output is correct
14 Correct 1 ms 5724 KB Output is correct
15 Correct 2 ms 5724 KB Output is correct
16 Correct 2 ms 5724 KB Output is correct
17 Correct 2 ms 5720 KB Output is correct
18 Correct 2 ms 5724 KB Output is correct
19 Correct 2 ms 5724 KB Output is correct
20 Correct 2 ms 5724 KB Output is correct
21 Correct 2 ms 5788 KB Output is correct
22 Correct 3 ms 5724 KB Output is correct
23 Correct 3 ms 5724 KB Output is correct
24 Correct 3 ms 5724 KB Output is correct
25 Correct 3 ms 5800 KB Output is correct
26 Correct 3 ms 5724 KB Output is correct
27 Correct 3 ms 5724 KB Output is correct
28 Correct 3 ms 5724 KB Output is correct
29 Correct 3 ms 5980 KB Output is correct
30 Correct 3 ms 5724 KB Output is correct
31 Correct 2 ms 5724 KB Output is correct
32 Correct 3 ms 5724 KB Output is correct
33 Correct 3 ms 5724 KB Output is correct
34 Correct 3 ms 5720 KB Output is correct
35 Correct 2 ms 5724 KB Output is correct
36 Correct 2 ms 5664 KB Output is correct
37 Correct 2 ms 5976 KB Output is correct
38 Correct 2 ms 5724 KB Output is correct
39 Correct 3 ms 5724 KB Output is correct
40 Correct 3 ms 5920 KB Output is correct
41 Correct 3 ms 5820 KB Output is correct
42 Correct 3 ms 5804 KB Output is correct
43 Correct 3 ms 5808 KB Output is correct
44 Correct 2 ms 5724 KB Output is correct
45 Correct 3 ms 5980 KB Output is correct
46 Correct 4 ms 5724 KB Output is correct
47 Correct 2 ms 5724 KB Output is correct
48 Correct 2 ms 5724 KB Output is correct
49 Correct 2 ms 5880 KB Output is correct
50 Correct 3 ms 5724 KB Output is correct
51 Correct 2 ms 5800 KB Output is correct
52 Correct 2 ms 5724 KB Output is correct
53 Correct 2 ms 5720 KB Output is correct
54 Correct 2 ms 5724 KB Output is correct
55 Correct 2 ms 5720 KB Output is correct
56 Correct 2 ms 5724 KB Output is correct
57 Correct 3 ms 5808 KB Output is correct
58 Correct 2 ms 5724 KB Output is correct
59 Correct 3 ms 5800 KB Output is correct
60 Correct 4 ms 5980 KB Output is correct
61 Correct 2 ms 5720 KB Output is correct
62 Correct 3 ms 5724 KB Output is correct
63 Correct 2 ms 5724 KB Output is correct

Subtask #3
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 5724 KB Output is correct
2 Correct 1 ms 5724 KB Output is correct
3 Correct 2 ms 5976 KB Output is correct
4 Correct 2 ms 5724 KB Output is correct
5 Correct 1 ms 5724 KB Output is correct
6 Correct 2 ms 5720 KB Output is correct
7 Correct 2 ms 5724 KB Output is correct
8 Correct 2 ms 5724 KB Output is correct
9 Correct 2 ms 5724 KB Output is correct
10 Correct 2 ms 5724 KB Output is correct
11 Correct 2 ms 5720 KB Output is correct
12 Correct 2 ms 5724 KB Output is correct
13 Correct 2 ms 5720 KB Output is correct
14 Correct 1 ms 5724 KB Output is correct
15 Correct 2 ms 5724 KB Output is correct
16 Correct 2 ms 5724 KB Output is correct
17 Correct 2 ms 5720 KB Output is correct
18 Correct 2 ms 5724 KB Output is correct
19 Correct 2 ms 5724 KB Output is correct
20 Correct 2 ms 5724 KB Output is correct
21 Correct 2 ms 5788 KB Output is correct
22 Correct 3 ms 5724 KB Output is correct
23 Correct 3 ms 5724 KB Output is correct
24 Correct 3 ms 5724 KB Output is correct
25 Correct 3 ms 5800 KB Output is correct
26 Correct 3 ms 5724 KB Output is correct
27 Correct 3 ms 5724 KB Output is correct
28 Correct 3 ms 5724 KB Output is correct
29 Correct 3 ms 5980 KB Output is correct
30 Correct 3 ms 5724 KB Output is correct
31 Correct 2 ms 5724 KB Output is correct
32 Correct 3 ms 5724 KB Output is correct
33 Correct 3 ms 5724 KB Output is correct
34 Correct 3 ms 5720 KB Output is correct
35 Correct 2 ms 5724 KB Output is correct
36 Correct 2 ms 5664 KB Output is correct
37 Correct 2 ms 5976 KB Output is correct
38 Correct 2 ms 5724 KB Output is correct
39 Correct 3 ms 5724 KB Output is correct
40 Correct 3 ms 5920 KB Output is correct
41 Correct 3 ms 5820 KB Output is correct
42 Correct 3 ms 5804 KB Output is correct
43 Correct 3 ms 5808 KB Output is correct
44 Correct 2 ms 5724 KB Output is correct
45 Correct 3 ms 5980 KB Output is correct
46 Correct 4 ms 5724 KB Output is correct
47 Correct 2 ms 5724 KB Output is correct
48 Correct 2 ms 5724 KB Output is correct
49 Correct 2 ms 5880 KB Output is correct
50 Correct 3 ms 5724 KB Output is correct
51 Correct 2 ms 5800 KB Output is correct
52 Correct 2 ms 5724 KB Output is correct
53 Correct 2 ms 5720 KB Output is correct
54 Correct 2 ms 5724 KB Output is correct
55 Correct 2 ms 5720 KB Output is correct
56 Correct 2 ms 5724 KB Output is correct
57 Correct 3 ms 5808 KB Output is correct
58 Correct 2 ms 5724 KB Output is correct
59 Correct 3 ms 5800 KB Output is correct
60 Correct 4 ms 5980 KB Output is correct
61 Correct 2 ms 5720 KB Output is correct
62 Correct 3 ms 5724 KB Output is correct
63 Correct 2 ms 5724 KB Output is correct
64 Correct 225 ms 15248 KB Output is correct
65 Correct 312 ms 15308 KB Output is correct
66 Correct 247 ms 15220 KB Output is correct
67 Correct 264 ms 15340 KB Output is correct
68 Correct 214 ms 15288 KB Output is correct
69 Correct 216 ms 15260 KB Output is correct
70 Correct 218 ms 15336 KB Output is correct
71 Correct 208 ms 15320 KB Output is correct
72 Correct 293 ms 15348 KB Output is correct
73 Correct 464 ms 25300 KB Output is correct
74 Correct 469 ms 25288 KB Output is correct
75 Correct 222 ms 15248 KB Output is correct
76 Correct 198 ms 15248 KB Output is correct
77 Correct 251 ms 15244 KB Output is correct
78 Correct 221 ms 15248 KB Output is correct
79 Correct 252 ms 15264 KB Output is correct
80 Correct 294 ms 15244 KB Output is correct
81 Correct 79 ms 15672 KB Output is correct
82 Correct 106 ms 15440 KB Output is correct
83 Correct 330 ms 19408 KB Output is correct
84 Correct 343 ms 21132 KB Output is correct
85 Correct 401 ms 20928 KB Output is correct
86 Correct 264 ms 16592 KB Output is correct
87 Correct 287 ms 15968 KB Output is correct
88 Correct 218 ms 16440 KB Output is correct
89 Correct 260 ms 16344 KB Output is correct
90 Correct 196 ms 16396 KB Output is correct
91 Correct 206 ms 16372 KB Output is correct
92 Correct 248 ms 16736 KB Output is correct
93 Correct 232 ms 21152 KB Output is correct
94 Correct 211 ms 22476 KB Output is correct
95 Correct 223 ms 19080 KB Output is correct
96 Correct 235 ms 17720 KB Output is correct
97 Correct 158 ms 16196 KB Output is correct
98 Correct 144 ms 15872 KB Output is correct
99 Correct 220 ms 15684 KB Output is correct
100 Correct 191 ms 18084 KB Output is correct
101 Correct 196 ms 16560 KB Output is correct
102 Correct 183 ms 16028 KB Output is correct
103 Correct 198 ms 16032 KB Output is correct
104 Correct 48 ms 16072 KB Output is correct
105 Correct 418 ms 23228 KB Output is correct
106 Correct 59 ms 16040 KB Output is correct
107 Correct 54 ms 16104 KB Output is correct
108 Correct 438 ms 26092 KB Output is correct
109 Correct 48 ms 16208 KB Output is correct
110 Correct 583 ms 26108 KB Output is correct
111 Correct 142 ms 15268 KB Output is correct