답안 #992583

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
992583	2024-06-04T17:51:09 Z	vyshniak_n	Power Plant (JOI20_power)	C++17	100 / 100	99 ms	29772 KB

power

//#pragma optimize("Ofast")
//#pragma optimize("unroll-loops")
//#pragma traget("avx,avx2")

#include <iostream>
#include <cmath>
#include <algorithm>
#include <stdio.h>
#include <cstdint>
#include <cstring>
#include <string>
#include <cstdlib>
#include <vector>
#include <bitset>
#include <map>
#include <queue>
#include <ctime>
#include <stack>
#include <set>
#include <list>
#include <random>
#include <deque>
#include <functional>
#include <iomanip>
#include <sstream>
#include <fstream>
#include <complex>
#include <numeric>
#include <cassert>
#include <array>
#include <tuple>
#include <unordered_map>
#include <unordered_set>
#include <thread>

typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;

#define el '\n'
#define ff first
#define ss second
#define pb push_back
#define pf push_front
#define popb pop_back
#define popf pop_front
#define point pair <ll, ll>
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()

using namespace std;

#include <random>
mt19937 rnd(time(0));

const ll INF = 1e18 + 10;
const ll inf = 1e9 + 10;
const ll N = 2e5 + 10;
const ll mod = 1e9 + 7;
const ll K = 7e6 + 100;
const ll LOG = 20;

vector <ll> gr[N];
string s;
ll dp[N], ans = 1;

void dfs(ll v, ll pr) {
    if (s[v] == '1')
        dp[v] = 1;

    ll sum = 0, mx = 0;
    for (ll to : gr[v]) {
        if (to == pr)
            continue;

        dfs(to, v);
        sum += dp[to];
        mx = max(mx, dp[to]);
    }

    if (s[v] == '1')
        sum--, ans = max(ans, mx + 1);
    dp[v] = max(dp[v], sum);
    ans = max(ans, dp[v]);
}

void solve() {
    ll n;
    cin >> n;

    for (ll i = 1; i < n; i++) {
        ll u, v;
        cin >> u >> v;

        gr[u].pb(v);
        gr[v].pb(u);
    }

    cin >> s;
    s = '#' + s;

    dfs(1, 1);
    cout << ans << el;
    return;
}
signed main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);

    int tests = 1;
    //cin >> tests;

    while (tests--) 
        solve();
    return 0;
}
/*
*/

Subtask #1
6.0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	6492 KB	Output is correct
2	Correct	2 ms	6552 KB	Output is correct
3	Correct	2 ms	6492 KB	Output is correct
4	Correct	2 ms	6552 KB	Output is correct
5	Correct	2 ms	6492 KB	Output is correct
6	Correct	1 ms	6492 KB	Output is correct
7	Correct	2 ms	6492 KB	Output is correct
8	Correct	2 ms	6492 KB	Output is correct
9	Correct	2 ms	6332 KB	Output is correct
10	Correct	2 ms	6492 KB	Output is correct
11	Correct	2 ms	6492 KB	Output is correct
12	Correct	2 ms	6492 KB	Output is correct
13	Correct	1 ms	6492 KB	Output is correct
14	Correct	2 ms	6492 KB	Output is correct
15	Correct	2 ms	6492 KB	Output is correct
16	Correct	2 ms	6492 KB	Output is correct
17	Correct	2 ms	6492 KB	Output is correct
18	Correct	2 ms	6496 KB	Output is correct
19	Correct	2 ms	6492 KB	Output is correct
20	Correct	2 ms	6492 KB	Output is correct
21	Correct	2 ms	6488 KB	Output is correct

Subtask #2
41.0 / 41.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	6492 KB	Output is correct
2	Correct	2 ms	6552 KB	Output is correct
3	Correct	2 ms	6492 KB	Output is correct
4	Correct	2 ms	6552 KB	Output is correct
5	Correct	2 ms	6492 KB	Output is correct
6	Correct	1 ms	6492 KB	Output is correct
7	Correct	2 ms	6492 KB	Output is correct
8	Correct	2 ms	6492 KB	Output is correct
9	Correct	2 ms	6332 KB	Output is correct
10	Correct	2 ms	6492 KB	Output is correct
11	Correct	2 ms	6492 KB	Output is correct
12	Correct	2 ms	6492 KB	Output is correct
13	Correct	1 ms	6492 KB	Output is correct
14	Correct	2 ms	6492 KB	Output is correct
15	Correct	2 ms	6492 KB	Output is correct
16	Correct	2 ms	6492 KB	Output is correct
17	Correct	2 ms	6492 KB	Output is correct
18	Correct	2 ms	6496 KB	Output is correct
19	Correct	2 ms	6492 KB	Output is correct
20	Correct	2 ms	6492 KB	Output is correct
21	Correct	2 ms	6488 KB	Output is correct
22	Correct	2 ms	6492 KB	Output is correct
23	Correct	2 ms	6492 KB	Output is correct
24	Correct	3 ms	6564 KB	Output is correct
25	Correct	3 ms	6492 KB	Output is correct
26	Correct	3 ms	6492 KB	Output is correct
27	Correct	2 ms	6492 KB	Output is correct
28	Correct	3 ms	6560 KB	Output is correct
29	Correct	2 ms	6748 KB	Output is correct
30	Correct	3 ms	6528 KB	Output is correct
31	Correct	2 ms	6776 KB	Output is correct
32	Correct	2 ms	6496 KB	Output is correct
33	Correct	2 ms	6492 KB	Output is correct
34	Correct	2 ms	6500 KB	Output is correct
35	Correct	2 ms	6488 KB	Output is correct
36	Correct	3 ms	6492 KB	Output is correct
37	Correct	2 ms	6492 KB	Output is correct
38	Correct	2 ms	6492 KB	Output is correct
39	Correct	2 ms	6492 KB	Output is correct
40	Correct	4 ms	6488 KB	Output is correct
41	Correct	2 ms	6492 KB	Output is correct
42	Correct	2 ms	6492 KB	Output is correct
43	Correct	2 ms	6492 KB	Output is correct
44	Correct	3 ms	6492 KB	Output is correct
45	Correct	3 ms	6744 KB	Output is correct
46	Correct	2 ms	6492 KB	Output is correct
47	Correct	2 ms	6492 KB	Output is correct
48	Correct	2 ms	6640 KB	Output is correct
49	Correct	3 ms	6492 KB	Output is correct
50	Correct	2 ms	6492 KB	Output is correct
51	Correct	2 ms	6492 KB	Output is correct
52	Correct	3 ms	6496 KB	Output is correct
53	Correct	2 ms	6492 KB	Output is correct
54	Correct	2 ms	6492 KB	Output is correct
55	Correct	3 ms	6492 KB	Output is correct
56	Correct	2 ms	6492 KB	Output is correct
57	Correct	2 ms	6744 KB	Output is correct
58	Correct	3 ms	6488 KB	Output is correct
59	Correct	3 ms	6488 KB	Output is correct
60	Correct	2 ms	6492 KB	Output is correct
61	Correct	2 ms	6492 KB	Output is correct
62	Correct	2 ms	6748 KB	Output is correct
63	Correct	2 ms	6492 KB	Output is correct

Subtask #3
53.0 / 53.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	6492 KB	Output is correct
2	Correct	2 ms	6552 KB	Output is correct
3	Correct	2 ms	6492 KB	Output is correct
4	Correct	2 ms	6552 KB	Output is correct
5	Correct	2 ms	6492 KB	Output is correct
6	Correct	1 ms	6492 KB	Output is correct
7	Correct	2 ms	6492 KB	Output is correct
8	Correct	2 ms	6492 KB	Output is correct
9	Correct	2 ms	6332 KB	Output is correct
10	Correct	2 ms	6492 KB	Output is correct
11	Correct	2 ms	6492 KB	Output is correct
12	Correct	2 ms	6492 KB	Output is correct
13	Correct	1 ms	6492 KB	Output is correct
14	Correct	2 ms	6492 KB	Output is correct
15	Correct	2 ms	6492 KB	Output is correct
16	Correct	2 ms	6492 KB	Output is correct
17	Correct	2 ms	6492 KB	Output is correct
18	Correct	2 ms	6496 KB	Output is correct
19	Correct	2 ms	6492 KB	Output is correct
20	Correct	2 ms	6492 KB	Output is correct
21	Correct	2 ms	6488 KB	Output is correct
22	Correct	2 ms	6492 KB	Output is correct
23	Correct	2 ms	6492 KB	Output is correct
24	Correct	3 ms	6564 KB	Output is correct
25	Correct	3 ms	6492 KB	Output is correct
26	Correct	3 ms	6492 KB	Output is correct
27	Correct	2 ms	6492 KB	Output is correct
28	Correct	3 ms	6560 KB	Output is correct
29	Correct	2 ms	6748 KB	Output is correct
30	Correct	3 ms	6528 KB	Output is correct
31	Correct	2 ms	6776 KB	Output is correct
32	Correct	2 ms	6496 KB	Output is correct
33	Correct	2 ms	6492 KB	Output is correct
34	Correct	2 ms	6500 KB	Output is correct
35	Correct	2 ms	6488 KB	Output is correct
36	Correct	3 ms	6492 KB	Output is correct
37	Correct	2 ms	6492 KB	Output is correct
38	Correct	2 ms	6492 KB	Output is correct
39	Correct	2 ms	6492 KB	Output is correct
40	Correct	4 ms	6488 KB	Output is correct
41	Correct	2 ms	6492 KB	Output is correct
42	Correct	2 ms	6492 KB	Output is correct
43	Correct	2 ms	6492 KB	Output is correct
44	Correct	3 ms	6492 KB	Output is correct
45	Correct	3 ms	6744 KB	Output is correct
46	Correct	2 ms	6492 KB	Output is correct
47	Correct	2 ms	6492 KB	Output is correct
48	Correct	2 ms	6640 KB	Output is correct
49	Correct	3 ms	6492 KB	Output is correct
50	Correct	2 ms	6492 KB	Output is correct
51	Correct	2 ms	6492 KB	Output is correct
52	Correct	3 ms	6496 KB	Output is correct
53	Correct	2 ms	6492 KB	Output is correct
54	Correct	2 ms	6492 KB	Output is correct
55	Correct	3 ms	6492 KB	Output is correct
56	Correct	2 ms	6492 KB	Output is correct
57	Correct	2 ms	6744 KB	Output is correct
58	Correct	3 ms	6488 KB	Output is correct
59	Correct	3 ms	6488 KB	Output is correct
60	Correct	2 ms	6492 KB	Output is correct
61	Correct	2 ms	6492 KB	Output is correct
62	Correct	2 ms	6748 KB	Output is correct
63	Correct	2 ms	6492 KB	Output is correct
64	Correct	66 ms	17048 KB	Output is correct
65	Correct	58 ms	17044 KB	Output is correct
66	Correct	75 ms	17084 KB	Output is correct
67	Correct	59 ms	17040 KB	Output is correct
68	Correct	64 ms	17068 KB	Output is correct
69	Correct	76 ms	17004 KB	Output is correct
70	Correct	62 ms	16964 KB	Output is correct
71	Correct	64 ms	17104 KB	Output is correct
72	Correct	61 ms	17100 KB	Output is correct
73	Correct	67 ms	28620 KB	Output is correct
74	Correct	75 ms	28496 KB	Output is correct
75	Correct	59 ms	18288 KB	Output is correct
76	Correct	64 ms	18324 KB	Output is correct
77	Correct	57 ms	17032 KB	Output is correct
78	Correct	61 ms	17040 KB	Output is correct
79	Correct	63 ms	17056 KB	Output is correct
80	Correct	90 ms	17080 KB	Output is correct
81	Correct	62 ms	17092 KB	Output is correct
82	Correct	53 ms	16904 KB	Output is correct
83	Correct	92 ms	21968 KB	Output is correct
84	Correct	69 ms	24284 KB	Output is correct
85	Correct	62 ms	23916 KB	Output is correct
86	Correct	66 ms	18388 KB	Output is correct
87	Correct	81 ms	17612 KB	Output is correct
88	Correct	57 ms	17924 KB	Output is correct
89	Correct	65 ms	17956 KB	Output is correct
90	Correct	76 ms	17644 KB	Output is correct
91	Correct	60 ms	17780 KB	Output is correct
92	Correct	68 ms	18108 KB	Output is correct
93	Correct	67 ms	20428 KB	Output is correct
94	Correct	98 ms	22184 KB	Output is correct
95	Correct	98 ms	20736 KB	Output is correct
96	Correct	99 ms	18976 KB	Output is correct
97	Correct	63 ms	17592 KB	Output is correct
98	Correct	54 ms	17148 KB	Output is correct
99	Correct	71 ms	17100 KB	Output is correct
100	Correct	69 ms	19960 KB	Output is correct
101	Correct	83 ms	17960 KB	Output is correct
102	Correct	57 ms	17308 KB	Output is correct
103	Correct	74 ms	17392 KB	Output is correct
104	Correct	79 ms	17584 KB	Output is correct
105	Correct	75 ms	25316 KB	Output is correct
106	Correct	58 ms	17596 KB	Output is correct
107	Correct	49 ms	17500 KB	Output is correct
108	Correct	89 ms	29464 KB	Output is correct
109	Correct	57 ms	17548 KB	Output is correct
110	Correct	77 ms	29772 KB	Output is correct
111	Correct	58 ms	17052 KB	Output is correct

답안 #992583

Compilation message

Subtask #1 6.0 / 6.0

Subtask #2 41.0 / 41.0

Subtask #3 53.0 / 53.0

Subtask #1
6.0 / 6.0

Subtask #2
41.0 / 41.0

Subtask #3
53.0 / 53.0