oj.uz

답안 #762945

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
762945 2023-06-22T01:37:42 Z anhduc2701 Power Plant (JOI20_power) C++17
100 / 100
 169 ms 49204 KB 
/*
#pragma GCC optimize("Ofast")
#pragma GCC target("avx,avx2,fma")
#pragma GCC optimize("unroll-loops")
*/
#include <bits/stdc++.h>
using namespace std;
#define all(x) x.begin(), x.end()
#define len(x) ll(x.size())
#define eb emplace_back
#define PI acos(-1.0)
#define fi first
#define se second
#define mp make_pair
#define pb push_back
#define MIN(v) *min_element(all(v))
#define MAX(v) *max_element(all(v))
#define BIT(x, i) (1 & ((x) >> (i)))
#define MASK(x) (1LL << (x))
#define task "tnc"
#define rep(i, n) for (int i = 0; i < (n); i++)
#define rep1(i, n) for (int i = 1; i <= (n); i++)
typedef long long ll;
typedef long double ld;
const ll INF = 1e18;
const int maxn = 1e6 + 5;
const int mod = 1e9 + 7;
const int mo = 998244353;
using pi = pair<ll, ll>;
using vi = vector<ll>;
using pii = pair<pair<ll, ll>, ll>;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
int n;
vector<int> G[maxn];
string s;
int re[maxn];
int dp[maxn];
int tong[maxn];
void dfs(int u, int pa)
{
    for (auto v : G[u])
    {
        if (v == pa)
            continue;
        dfs(v, u);
        dp[u] += dp[v];
        tong[u] += dp[v];
    }
    if (s[u] == '1')
        dp[u] = max(dp[u] - 1, 1);
}
int ans = 0;
void dfs_re(int u, int pa)
{
    if (pa != -1)
    {
        re[u] = re[pa] + tong[pa] - dp[u];
        if (s[pa] == '1')
        {
            re[u] = max(1, re[u] - 1);
        }
        ans = max(ans, re[u] + dp[u]);
        if (s[u] == '1')
        {
            ans = max(ans, 1);
        }
    }
    for (auto v : G[u])
    {
        if (v == pa)
            continue;
        dfs_re(v, u);
    }
}
signed main()
{
    cin.tie(0), cout.tie(0)->sync_with_stdio(0);
    cin >> n;
    for (int i = 1; i < n; i++)
    {
        int u, v;
        cin >> u >> v;
        G[u].pb(v);
        G[v].pb(u);
    }
    cin >> s;
    s = ' ' + s;
    dfs(1, -1);
    ans = max(ans, dp[1]);
    dfs_re(1, -1);
    cout << ans << "\n";
}

Subtask #1
6.0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 11 ms 23764 KB Output is correct
2 Correct 14 ms 23764 KB Output is correct
3 Correct 11 ms 23724 KB Output is correct
4 Correct 11 ms 23824 KB Output is correct
5 Correct 12 ms 23824 KB Output is correct
6 Correct 13 ms 23820 KB Output is correct
7 Correct 13 ms 23716 KB Output is correct
8 Correct 12 ms 23744 KB Output is correct
9 Correct 11 ms 23820 KB Output is correct
10 Correct 12 ms 23760 KB Output is correct
11 Correct 11 ms 23820 KB Output is correct
12 Correct 12 ms 23816 KB Output is correct
13 Correct 11 ms 23816 KB Output is correct
14 Correct 12 ms 23728 KB Output is correct
15 Correct 11 ms 23824 KB Output is correct
16 Correct 14 ms 23724 KB Output is correct
17 Correct 12 ms 23800 KB Output is correct
18 Correct 13 ms 23840 KB Output is correct
19 Correct 14 ms 23760 KB Output is correct
20 Correct 12 ms 23732 KB Output is correct
21 Correct 12 ms 23816 KB Output is correct

Subtask #2
41.0 / 41.0

# 결과 실행 시간 메모리 Grader output
1 Correct 11 ms 23764 KB Output is correct
2 Correct 14 ms 23764 KB Output is correct
3 Correct 11 ms 23724 KB Output is correct
4 Correct 11 ms 23824 KB Output is correct
5 Correct 12 ms 23824 KB Output is correct
6 Correct 13 ms 23820 KB Output is correct
7 Correct 13 ms 23716 KB Output is correct
8 Correct 12 ms 23744 KB Output is correct
9 Correct 11 ms 23820 KB Output is correct
10 Correct 12 ms 23760 KB Output is correct
11 Correct 11 ms 23820 KB Output is correct
12 Correct 12 ms 23816 KB Output is correct
13 Correct 11 ms 23816 KB Output is correct
14 Correct 12 ms 23728 KB Output is correct
15 Correct 11 ms 23824 KB Output is correct
16 Correct 14 ms 23724 KB Output is correct
17 Correct 12 ms 23800 KB Output is correct
18 Correct 13 ms 23840 KB Output is correct
19 Correct 14 ms 23760 KB Output is correct
20 Correct 12 ms 23732 KB Output is correct
21 Correct 12 ms 23816 KB Output is correct
22 Correct 12 ms 23832 KB Output is correct
23 Correct 15 ms 23936 KB Output is correct
24 Correct 13 ms 23832 KB Output is correct
25 Correct 14 ms 23836 KB Output is correct
26 Correct 14 ms 23832 KB Output is correct
27 Correct 12 ms 23876 KB Output is correct
28 Correct 12 ms 23848 KB Output is correct
29 Correct 12 ms 24016 KB Output is correct
30 Correct 12 ms 23924 KB Output is correct
31 Correct 12 ms 23900 KB Output is correct
32 Correct 12 ms 23892 KB Output is correct
33 Correct 12 ms 23832 KB Output is correct
34 Correct 14 ms 23832 KB Output is correct
35 Correct 12 ms 23892 KB Output is correct
36 Correct 14 ms 23892 KB Output is correct
37 Correct 14 ms 23844 KB Output is correct
38 Correct 12 ms 23836 KB Output is correct
39 Correct 12 ms 23964 KB Output is correct
40 Correct 13 ms 23904 KB Output is correct
41 Correct 13 ms 23892 KB Output is correct
42 Correct 12 ms 23892 KB Output is correct
43 Correct 13 ms 23960 KB Output is correct
44 Correct 12 ms 23892 KB Output is correct
45 Correct 13 ms 23892 KB Output is correct
46 Correct 13 ms 23852 KB Output is correct
47 Correct 13 ms 23952 KB Output is correct
48 Correct 12 ms 24020 KB Output is correct
49 Correct 12 ms 23960 KB Output is correct
50 Correct 12 ms 23892 KB Output is correct
51 Correct 15 ms 23892 KB Output is correct
52 Correct 13 ms 23892 KB Output is correct
53 Correct 12 ms 23892 KB Output is correct
54 Correct 14 ms 23892 KB Output is correct
55 Correct 12 ms 23892 KB Output is correct
56 Correct 12 ms 23892 KB Output is correct
57 Correct 13 ms 24048 KB Output is correct
58 Correct 13 ms 23892 KB Output is correct
59 Correct 14 ms 23892 KB Output is correct
60 Correct 14 ms 24012 KB Output is correct
61 Correct 12 ms 23924 KB Output is correct
62 Correct 16 ms 24016 KB Output is correct
63 Correct 12 ms 23892 KB Output is correct

Subtask #3
53.0 / 53.0

# 결과 실행 시간 메모리 Grader output
1 Correct 11 ms 23764 KB Output is correct
2 Correct 14 ms 23764 KB Output is correct
3 Correct 11 ms 23724 KB Output is correct
4 Correct 11 ms 23824 KB Output is correct
5 Correct 12 ms 23824 KB Output is correct
6 Correct 13 ms 23820 KB Output is correct
7 Correct 13 ms 23716 KB Output is correct
8 Correct 12 ms 23744 KB Output is correct
9 Correct 11 ms 23820 KB Output is correct
10 Correct 12 ms 23760 KB Output is correct
11 Correct 11 ms 23820 KB Output is correct
12 Correct 12 ms 23816 KB Output is correct
13 Correct 11 ms 23816 KB Output is correct
14 Correct 12 ms 23728 KB Output is correct
15 Correct 11 ms 23824 KB Output is correct
16 Correct 14 ms 23724 KB Output is correct
17 Correct 12 ms 23800 KB Output is correct
18 Correct 13 ms 23840 KB Output is correct
19 Correct 14 ms 23760 KB Output is correct
20 Correct 12 ms 23732 KB Output is correct
21 Correct 12 ms 23816 KB Output is correct
22 Correct 12 ms 23832 KB Output is correct
23 Correct 15 ms 23936 KB Output is correct
24 Correct 13 ms 23832 KB Output is correct
25 Correct 14 ms 23836 KB Output is correct
26 Correct 14 ms 23832 KB Output is correct
27 Correct 12 ms 23876 KB Output is correct
28 Correct 12 ms 23848 KB Output is correct
29 Correct 12 ms 24016 KB Output is correct
30 Correct 12 ms 23924 KB Output is correct
31 Correct 12 ms 23900 KB Output is correct
32 Correct 12 ms 23892 KB Output is correct
33 Correct 12 ms 23832 KB Output is correct
34 Correct 14 ms 23832 KB Output is correct
35 Correct 12 ms 23892 KB Output is correct
36 Correct 14 ms 23892 KB Output is correct
37 Correct 14 ms 23844 KB Output is correct
38 Correct 12 ms 23836 KB Output is correct
39 Correct 12 ms 23964 KB Output is correct
40 Correct 13 ms 23904 KB Output is correct
41 Correct 13 ms 23892 KB Output is correct
42 Correct 12 ms 23892 KB Output is correct
43 Correct 13 ms 23960 KB Output is correct
44 Correct 12 ms 23892 KB Output is correct
45 Correct 13 ms 23892 KB Output is correct
46 Correct 13 ms 23852 KB Output is correct
47 Correct 13 ms 23952 KB Output is correct
48 Correct 12 ms 24020 KB Output is correct
49 Correct 12 ms 23960 KB Output is correct
50 Correct 12 ms 23892 KB Output is correct
51 Correct 15 ms 23892 KB Output is correct
52 Correct 13 ms 23892 KB Output is correct
53 Correct 12 ms 23892 KB Output is correct
54 Correct 14 ms 23892 KB Output is correct
55 Correct 12 ms 23892 KB Output is correct
56 Correct 12 ms 23892 KB Output is correct
57 Correct 13 ms 24048 KB Output is correct
58 Correct 13 ms 23892 KB Output is correct
59 Correct 14 ms 23892 KB Output is correct
60 Correct 14 ms 24012 KB Output is correct
61 Correct 12 ms 23924 KB Output is correct
62 Correct 16 ms 24016 KB Output is correct
63 Correct 12 ms 23892 KB Output is correct
64 Correct 100 ms 35572 KB Output is correct
65 Correct 105 ms 35656 KB Output is correct
66 Correct 95 ms 35584 KB Output is correct
67 Correct 127 ms 35528 KB Output is correct
68 Correct 97 ms 35548 KB Output is correct
69 Correct 98 ms 35648 KB Output is correct
70 Correct 113 ms 35544 KB Output is correct
71 Correct 97 ms 35488 KB Output is correct
72 Correct 105 ms 35604 KB Output is correct
73 Correct 153 ms 48088 KB Output is correct
74 Correct 149 ms 48112 KB Output is correct
75 Correct 101 ms 35480 KB Output is correct
76 Correct 97 ms 35480 KB Output is correct
77 Correct 98 ms 35472 KB Output is correct
78 Correct 142 ms 35400 KB Output is correct
79 Correct 98 ms 35484 KB Output is correct
80 Correct 100 ms 35472 KB Output is correct
81 Correct 89 ms 35908 KB Output is correct
82 Correct 93 ms 35624 KB Output is correct
83 Correct 139 ms 40684 KB Output is correct
84 Correct 152 ms 42828 KB Output is correct
85 Correct 151 ms 42428 KB Output is correct
86 Correct 96 ms 36924 KB Output is correct
87 Correct 96 ms 36292 KB Output is correct
88 Correct 102 ms 36740 KB Output is correct
89 Correct 110 ms 36828 KB Output is correct
90 Correct 113 ms 36608 KB Output is correct
91 Correct 137 ms 36760 KB Output is correct
92 Correct 95 ms 37156 KB Output is correct
93 Correct 137 ms 39472 KB Output is correct
94 Correct 88 ms 41272 KB Output is correct
95 Correct 97 ms 39852 KB Output is correct
96 Correct 98 ms 38088 KB Output is correct
97 Correct 116 ms 36672 KB Output is correct
98 Correct 87 ms 36056 KB Output is correct
99 Correct 89 ms 35908 KB Output is correct
100 Correct 119 ms 39120 KB Output is correct
101 Correct 94 ms 37104 KB Output is correct
102 Correct 88 ms 36348 KB Output is correct
103 Correct 89 ms 36072 KB Output is correct
104 Correct 59 ms 34920 KB Output is correct
105 Correct 120 ms 45000 KB Output is correct
106 Correct 64 ms 35520 KB Output is correct
107 Correct 74 ms 35520 KB Output is correct
108 Correct 128 ms 48968 KB Output is correct
109 Correct 71 ms 34856 KB Output is correct
110 Correct 169 ms 49204 KB Output is correct
111 Correct 98 ms 35388 KB Output is correct