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Submission #908685

# Submission time Handle Problem Language Result Execution time Memory
908685 2024-01-16T16:31:30 Z Shayan86 Power Plant (JOI20_power) C++14
100 / 100
 172 ms 33952 KB 
#include <bits/stdc++.h>
using namespace std;

#pragma GCC optimize("O3,unroll-loops")
// #pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
// Ofast, O0, O1, O2, O3, unroll-loops, fast-math, trapv

typedef long long ll;
typedef pair<ll, ll> pll;
typedef pair<int, int> pii;

#define Mp          make_pair
#define sep         ' '
#define endl        '\n'
#define F	        first
#define S	        second
#define pb          push_back
#define all(x)      (x).begin(),(x).end()
#define kill(res)	cout << res << '\n', exit(0);
#define set_dec(x)	cout << fixed << setprecision(x);
#define fast_io     ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);
#define file_io     freopen("input.txt", "r", stdin) ; freopen("output.txt", "w", stdout);

const ll N = 2e5 + 50;
const ll Mod = 1e18;

ll n, dp[N][2];

string s;
vector<int> adj[N];

void dfs(int v, int p = 0){
    for(int u: adj[v]){
        if(u == p) continue;
        dfs(u, v);

        dp[v][1] += dp[u][1];
        dp[v][0] = max(dp[v][0], dp[u][1]);
    }
    if(s[v] == '1'){
        dp[v][1]--;
        dp[v][0] = max(dp[v][1], dp[v][0] + 1);
        dp[v][1] = max(dp[v][1], 1ll);
    }
    else{
        dp[v][0] = dp[v][1];
    }

    //cout << dp[v][1] << sep << dp[v][0] << endl;
}

int main(){
    fast_io;

    cin >> n;

    int u, v;
    for(int i = 1; i < n; i++){
        cin >> u >> v;
        adj[u].pb(v);
        adj[v].pb(u);
    }

    cin >> s; s = "$" + s;

    dfs(1);

    ll res = 0;
    for(int i = 1; i <= n; i++) res = max(res, dp[i][0]);

    cout << res;

}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6748 KB Output is correct
2 Correct 2 ms 6748 KB Output is correct
3 Correct 2 ms 6748 KB Output is correct
4 Correct 2 ms 6748 KB Output is correct
5 Correct 2 ms 6744 KB Output is correct
6 Correct 2 ms 6748 KB Output is correct
7 Correct 2 ms 6744 KB Output is correct
8 Correct 2 ms 6748 KB Output is correct
9 Correct 2 ms 6748 KB Output is correct
10 Correct 2 ms 6744 KB Output is correct
11 Correct 2 ms 6748 KB Output is correct
12 Correct 2 ms 6744 KB Output is correct
13 Correct 2 ms 6748 KB Output is correct
14 Correct 2 ms 6744 KB Output is correct
15 Correct 2 ms 6748 KB Output is correct
16 Correct 2 ms 6748 KB Output is correct
17 Correct 2 ms 6748 KB Output is correct
18 Correct 2 ms 6748 KB Output is correct
19 Correct 2 ms 6748 KB Output is correct
20 Correct 2 ms 6748 KB Output is correct
21 Correct 2 ms 6748 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6748 KB Output is correct
2 Correct 2 ms 6748 KB Output is correct
3 Correct 2 ms 6748 KB Output is correct
4 Correct 2 ms 6748 KB Output is correct
5 Correct 2 ms 6744 KB Output is correct
6 Correct 2 ms 6748 KB Output is correct
7 Correct 2 ms 6744 KB Output is correct
8 Correct 2 ms 6748 KB Output is correct
9 Correct 2 ms 6748 KB Output is correct
10 Correct 2 ms 6744 KB Output is correct
11 Correct 2 ms 6748 KB Output is correct
12 Correct 2 ms 6744 KB Output is correct
13 Correct 2 ms 6748 KB Output is correct
14 Correct 2 ms 6744 KB Output is correct
15 Correct 2 ms 6748 KB Output is correct
16 Correct 2 ms 6748 KB Output is correct
17 Correct 2 ms 6748 KB Output is correct
18 Correct 2 ms 6748 KB Output is correct
19 Correct 2 ms 6748 KB Output is correct
20 Correct 2 ms 6748 KB Output is correct
21 Correct 2 ms 6748 KB Output is correct
22 Correct 3 ms 6744 KB Output is correct
23 Correct 3 ms 7000 KB Output is correct
24 Correct 2 ms 6748 KB Output is correct
25 Correct 2 ms 6848 KB Output is correct
26 Correct 2 ms 6748 KB Output is correct
27 Correct 3 ms 6748 KB Output is correct
28 Correct 2 ms 6748 KB Output is correct
29 Correct 3 ms 7004 KB Output is correct
30 Correct 3 ms 6744 KB Output is correct
31 Correct 3 ms 6748 KB Output is correct
32 Correct 2 ms 6880 KB Output is correct
33 Correct 3 ms 6748 KB Output is correct
34 Correct 2 ms 6816 KB Output is correct
35 Correct 2 ms 6748 KB Output is correct
36 Correct 3 ms 6808 KB Output is correct
37 Correct 2 ms 6944 KB Output is correct
38 Correct 4 ms 6744 KB Output is correct
39 Correct 2 ms 6748 KB Output is correct
40 Correct 3 ms 6748 KB Output is correct
41 Correct 2 ms 6748 KB Output is correct
42 Correct 2 ms 6744 KB Output is correct
43 Correct 3 ms 6748 KB Output is correct
44 Correct 3 ms 6748 KB Output is correct
45 Correct 2 ms 6808 KB Output is correct
46 Correct 3 ms 6748 KB Output is correct
47 Correct 2 ms 6748 KB Output is correct
48 Correct 2 ms 6748 KB Output is correct
49 Correct 4 ms 6996 KB Output is correct
50 Correct 2 ms 6748 KB Output is correct
51 Correct 2 ms 6748 KB Output is correct
52 Correct 2 ms 6844 KB Output is correct
53 Correct 2 ms 6744 KB Output is correct
54 Correct 2 ms 7064 KB Output is correct
55 Correct 2 ms 6748 KB Output is correct
56 Correct 2 ms 6748 KB Output is correct
57 Correct 3 ms 7000 KB Output is correct
58 Correct 5 ms 7004 KB Output is correct
59 Correct 2 ms 6808 KB Output is correct
60 Correct 2 ms 6748 KB Output is correct
61 Correct 3 ms 6748 KB Output is correct
62 Correct 2 ms 7004 KB Output is correct
63 Correct 3 ms 6748 KB Output is correct

Subtask #3
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6748 KB Output is correct
2 Correct 2 ms 6748 KB Output is correct
3 Correct 2 ms 6748 KB Output is correct
4 Correct 2 ms 6748 KB Output is correct
5 Correct 2 ms 6744 KB Output is correct
6 Correct 2 ms 6748 KB Output is correct
7 Correct 2 ms 6744 KB Output is correct
8 Correct 2 ms 6748 KB Output is correct
9 Correct 2 ms 6748 KB Output is correct
10 Correct 2 ms 6744 KB Output is correct
11 Correct 2 ms 6748 KB Output is correct
12 Correct 2 ms 6744 KB Output is correct
13 Correct 2 ms 6748 KB Output is correct
14 Correct 2 ms 6744 KB Output is correct
15 Correct 2 ms 6748 KB Output is correct
16 Correct 2 ms 6748 KB Output is correct
17 Correct 2 ms 6748 KB Output is correct
18 Correct 2 ms 6748 KB Output is correct
19 Correct 2 ms 6748 KB Output is correct
20 Correct 2 ms 6748 KB Output is correct
21 Correct 2 ms 6748 KB Output is correct
22 Correct 3 ms 6744 KB Output is correct
23 Correct 3 ms 7000 KB Output is correct
24 Correct 2 ms 6748 KB Output is correct
25 Correct 2 ms 6848 KB Output is correct
26 Correct 2 ms 6748 KB Output is correct
27 Correct 3 ms 6748 KB Output is correct
28 Correct 2 ms 6748 KB Output is correct
29 Correct 3 ms 7004 KB Output is correct
30 Correct 3 ms 6744 KB Output is correct
31 Correct 3 ms 6748 KB Output is correct
32 Correct 2 ms 6880 KB Output is correct
33 Correct 3 ms 6748 KB Output is correct
34 Correct 2 ms 6816 KB Output is correct
35 Correct 2 ms 6748 KB Output is correct
36 Correct 3 ms 6808 KB Output is correct
37 Correct 2 ms 6944 KB Output is correct
38 Correct 4 ms 6744 KB Output is correct
39 Correct 2 ms 6748 KB Output is correct
40 Correct 3 ms 6748 KB Output is correct
41 Correct 2 ms 6748 KB Output is correct
42 Correct 2 ms 6744 KB Output is correct
43 Correct 3 ms 6748 KB Output is correct
44 Correct 3 ms 6748 KB Output is correct
45 Correct 2 ms 6808 KB Output is correct
46 Correct 3 ms 6748 KB Output is correct
47 Correct 2 ms 6748 KB Output is correct
48 Correct 2 ms 6748 KB Output is correct
49 Correct 4 ms 6996 KB Output is correct
50 Correct 2 ms 6748 KB Output is correct
51 Correct 2 ms 6748 KB Output is correct
52 Correct 2 ms 6844 KB Output is correct
53 Correct 2 ms 6744 KB Output is correct
54 Correct 2 ms 7064 KB Output is correct
55 Correct 2 ms 6748 KB Output is correct
56 Correct 2 ms 6748 KB Output is correct
57 Correct 3 ms 7000 KB Output is correct
58 Correct 5 ms 7004 KB Output is correct
59 Correct 2 ms 6808 KB Output is correct
60 Correct 2 ms 6748 KB Output is correct
61 Correct 3 ms 6748 KB Output is correct
62 Correct 2 ms 7004 KB Output is correct
63 Correct 3 ms 6748 KB Output is correct
64 Correct 122 ms 17616 KB Output is correct
65 Correct 113 ms 17612 KB Output is correct
66 Correct 84 ms 17596 KB Output is correct
67 Correct 74 ms 17616 KB Output is correct
68 Correct 71 ms 17592 KB Output is correct
69 Correct 112 ms 17688 KB Output is correct
70 Correct 72 ms 17568 KB Output is correct
71 Correct 75 ms 17628 KB Output is correct
72 Correct 127 ms 17508 KB Output is correct
73 Correct 110 ms 32624 KB Output is correct
74 Correct 129 ms 32748 KB Output is correct
75 Correct 74 ms 17356 KB Output is correct
76 Correct 71 ms 17364 KB Output is correct
77 Correct 78 ms 17488 KB Output is correct
78 Correct 70 ms 17428 KB Output is correct
79 Correct 80 ms 17632 KB Output is correct
80 Correct 82 ms 17408 KB Output is correct
81 Correct 75 ms 17952 KB Output is correct
82 Correct 104 ms 17528 KB Output is correct
83 Correct 115 ms 23824 KB Output is correct
84 Correct 94 ms 26156 KB Output is correct
85 Correct 114 ms 25860 KB Output is correct
86 Correct 79 ms 19280 KB Output is correct
87 Correct 92 ms 18576 KB Output is correct
88 Correct 77 ms 18952 KB Output is correct
89 Correct 94 ms 18992 KB Output is correct
90 Correct 79 ms 18736 KB Output is correct
91 Correct 77 ms 18860 KB Output is correct
92 Correct 97 ms 19452 KB Output is correct
93 Correct 89 ms 22360 KB Output is correct
94 Correct 91 ms 24260 KB Output is correct
95 Correct 111 ms 22796 KB Output is correct
96 Correct 88 ms 20652 KB Output is correct
97 Correct 157 ms 18852 KB Output is correct
98 Correct 138 ms 18252 KB Output is correct
99 Correct 114 ms 18012 KB Output is correct
100 Correct 168 ms 21796 KB Output is correct
101 Correct 96 ms 19340 KB Output is correct
102 Correct 162 ms 18332 KB Output is correct
103 Correct 136 ms 18208 KB Output is correct
104 Correct 55 ms 18372 KB Output is correct
105 Correct 114 ms 28876 KB Output is correct
106 Correct 59 ms 18180 KB Output is correct
107 Correct 62 ms 18304 KB Output is correct
108 Correct 117 ms 33740 KB Output is correct
109 Correct 66 ms 18324 KB Output is correct
110 Correct 172 ms 33952 KB Output is correct
111 Correct 122 ms 17480 KB Output is correct