oj.uz

Submission #773066

# Submission time Handle Problem Language Result Execution time Memory
773066 2023-07-04T14:36:11 Z davitmarg Power Plant (JOI20_power) C++17
100 / 100
 111 ms 35016 KB 
/*
DavitMarg
In pr honky-tonk,
Down in Mexico
*/
#define _CRT_SECURE_NO_WARNINGS
#include <iostream>
#include <algorithm>
#include <cmath>
#include <vector>
#include <string>
#include <cstring>
#include <map>
#include <unordered_map>
#include <set>
#include <unordered_set>
#include <queue>
#include <bitset>
#include <stack>
#include <cassert>
#include <iterator>
#include <random>
#include <chrono>
#define mod 1000000007ll
#define LL long long
#define LD long double
#define MP make_pair    
#define PB push_back
#define all(v) v.begin(), v.end()
#define fastIO ios::sync_with_stdio(false); cin.tie(0); cout.tie(0);
using namespace std;

const int N = 500005;

int n;
string s;
vector<int> g[N];
int dp[N];
int ans = 0;

void dfs(int v, int p)
{
    dp[v] = s[v] - '0';
    int sum = 0;
    int mx = 0;
    for(int i = 0; i < g[v].size(); i++)
    {
        int to = g[v][i];
        if(to == p)
            continue;
        dfs(to, v);
        sum += dp[to];
        mx = max(dp[to], mx);
    }
    dp[v] = max(dp[v], sum - (s[v] - '0'));
    ans = max(ans, max(dp[v], (s[v] - '0') + mx));
}

void solve()
{
    cin >> n;
    for(int i = 1; i <= n - 1; i++)
    {
        int a, b;
        cin >> a >> b;
        g[a].PB(b);
        g[b].PB(a);
    }
    cin>>s;
    s = '#' + s;

    vector<int> p;
    for(int i = 1; i <= n; i++)
        if(s[i] == '1')
            p.PB(i);

    int st = p[0];
    dfs(st, 0);
    cout << ans << endl;
}

int main()
{
    fastIO;
    int T = 1;
    //cin >> T;
    while (T--)
    {
        solve();
    }

    return 0;
}

/*


cd /mnt/d/Davit/Projects/VSCode; g++ -std=c++17 -O2 -Wall -Wextra -Ddeath -Wshadow source.cpp -o orz; ./orz; rm orz

*/

Compilation message

power.cpp: In function 'void dfs(int, int)':
power.cpp:46:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   46 |     for(int i = 0; i < g[v].size(); i++)
      |                    ~~^~~~~~~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 11988 KB Output is correct
2 Correct 6 ms 12032 KB Output is correct
3 Correct 5 ms 11988 KB Output is correct
4 Correct 5 ms 11988 KB Output is correct
5 Correct 5 ms 11988 KB Output is correct
6 Correct 6 ms 11980 KB Output is correct
7 Correct 6 ms 11988 KB Output is correct
8 Correct 5 ms 11988 KB Output is correct
9 Correct 5 ms 11988 KB Output is correct
10 Correct 7 ms 11988 KB Output is correct
11 Correct 5 ms 11988 KB Output is correct
12 Correct 5 ms 11988 KB Output is correct
13 Correct 7 ms 12008 KB Output is correct
14 Correct 6 ms 11988 KB Output is correct
15 Correct 6 ms 11988 KB Output is correct
16 Correct 5 ms 11988 KB Output is correct
17 Correct 5 ms 11988 KB Output is correct
18 Correct 6 ms 11988 KB Output is correct
19 Correct 5 ms 11988 KB Output is correct
20 Correct 5 ms 11988 KB Output is correct
21 Correct 5 ms 11988 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 11988 KB Output is correct
2 Correct 6 ms 12032 KB Output is correct
3 Correct 5 ms 11988 KB Output is correct
4 Correct 5 ms 11988 KB Output is correct
5 Correct 5 ms 11988 KB Output is correct
6 Correct 6 ms 11980 KB Output is correct
7 Correct 6 ms 11988 KB Output is correct
8 Correct 5 ms 11988 KB Output is correct
9 Correct 5 ms 11988 KB Output is correct
10 Correct 7 ms 11988 KB Output is correct
11 Correct 5 ms 11988 KB Output is correct
12 Correct 5 ms 11988 KB Output is correct
13 Correct 7 ms 12008 KB Output is correct
14 Correct 6 ms 11988 KB Output is correct
15 Correct 6 ms 11988 KB Output is correct
16 Correct 5 ms 11988 KB Output is correct
17 Correct 5 ms 11988 KB Output is correct
18 Correct 6 ms 11988 KB Output is correct
19 Correct 5 ms 11988 KB Output is correct
20 Correct 5 ms 11988 KB Output is correct
21 Correct 5 ms 11988 KB Output is correct
22 Correct 6 ms 12116 KB Output is correct
23 Correct 5 ms 12136 KB Output is correct
24 Correct 6 ms 12116 KB Output is correct
25 Correct 6 ms 12116 KB Output is correct
26 Correct 6 ms 12116 KB Output is correct
27 Correct 6 ms 12116 KB Output is correct
28 Correct 6 ms 12116 KB Output is correct
29 Correct 7 ms 12244 KB Output is correct
30 Correct 6 ms 12116 KB Output is correct
31 Correct 6 ms 12116 KB Output is correct
32 Correct 6 ms 12116 KB Output is correct
33 Correct 6 ms 12116 KB Output is correct
34 Correct 6 ms 12116 KB Output is correct
35 Correct 7 ms 12096 KB Output is correct
36 Correct 6 ms 12120 KB Output is correct
37 Correct 6 ms 12116 KB Output is correct
38 Correct 6 ms 12116 KB Output is correct
39 Correct 6 ms 12128 KB Output is correct
40 Correct 6 ms 12188 KB Output is correct
41 Correct 6 ms 12116 KB Output is correct
42 Correct 6 ms 12116 KB Output is correct
43 Correct 6 ms 12116 KB Output is correct
44 Correct 7 ms 12116 KB Output is correct
45 Correct 6 ms 12156 KB Output is correct
46 Correct 7 ms 12124 KB Output is correct
47 Correct 6 ms 12116 KB Output is correct
48 Correct 8 ms 12116 KB Output is correct
49 Correct 7 ms 12116 KB Output is correct
50 Correct 6 ms 12116 KB Output is correct
51 Correct 6 ms 12116 KB Output is correct
52 Correct 6 ms 12116 KB Output is correct
53 Correct 6 ms 12116 KB Output is correct
54 Correct 6 ms 12096 KB Output is correct
55 Correct 6 ms 12092 KB Output is correct
56 Correct 6 ms 12116 KB Output is correct
57 Correct 6 ms 12244 KB Output is correct
58 Correct 6 ms 12136 KB Output is correct
59 Correct 7 ms 12156 KB Output is correct
60 Correct 6 ms 12244 KB Output is correct
61 Correct 6 ms 12116 KB Output is correct
62 Correct 6 ms 12244 KB Output is correct
63 Correct 6 ms 12116 KB Output is correct

Subtask #3
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 11988 KB Output is correct
2 Correct 6 ms 12032 KB Output is correct
3 Correct 5 ms 11988 KB Output is correct
4 Correct 5 ms 11988 KB Output is correct
5 Correct 5 ms 11988 KB Output is correct
6 Correct 6 ms 11980 KB Output is correct
7 Correct 6 ms 11988 KB Output is correct
8 Correct 5 ms 11988 KB Output is correct
9 Correct 5 ms 11988 KB Output is correct
10 Correct 7 ms 11988 KB Output is correct
11 Correct 5 ms 11988 KB Output is correct
12 Correct 5 ms 11988 KB Output is correct
13 Correct 7 ms 12008 KB Output is correct
14 Correct 6 ms 11988 KB Output is correct
15 Correct 6 ms 11988 KB Output is correct
16 Correct 5 ms 11988 KB Output is correct
17 Correct 5 ms 11988 KB Output is correct
18 Correct 6 ms 11988 KB Output is correct
19 Correct 5 ms 11988 KB Output is correct
20 Correct 5 ms 11988 KB Output is correct
21 Correct 5 ms 11988 KB Output is correct
22 Correct 6 ms 12116 KB Output is correct
23 Correct 5 ms 12136 KB Output is correct
24 Correct 6 ms 12116 KB Output is correct
25 Correct 6 ms 12116 KB Output is correct
26 Correct 6 ms 12116 KB Output is correct
27 Correct 6 ms 12116 KB Output is correct
28 Correct 6 ms 12116 KB Output is correct
29 Correct 7 ms 12244 KB Output is correct
30 Correct 6 ms 12116 KB Output is correct
31 Correct 6 ms 12116 KB Output is correct
32 Correct 6 ms 12116 KB Output is correct
33 Correct 6 ms 12116 KB Output is correct
34 Correct 6 ms 12116 KB Output is correct
35 Correct 7 ms 12096 KB Output is correct
36 Correct 6 ms 12120 KB Output is correct
37 Correct 6 ms 12116 KB Output is correct
38 Correct 6 ms 12116 KB Output is correct
39 Correct 6 ms 12128 KB Output is correct
40 Correct 6 ms 12188 KB Output is correct
41 Correct 6 ms 12116 KB Output is correct
42 Correct 6 ms 12116 KB Output is correct
43 Correct 6 ms 12116 KB Output is correct
44 Correct 7 ms 12116 KB Output is correct
45 Correct 6 ms 12156 KB Output is correct
46 Correct 7 ms 12124 KB Output is correct
47 Correct 6 ms 12116 KB Output is correct
48 Correct 8 ms 12116 KB Output is correct
49 Correct 7 ms 12116 KB Output is correct
50 Correct 6 ms 12116 KB Output is correct
51 Correct 6 ms 12116 KB Output is correct
52 Correct 6 ms 12116 KB Output is correct
53 Correct 6 ms 12116 KB Output is correct
54 Correct 6 ms 12096 KB Output is correct
55 Correct 6 ms 12092 KB Output is correct
56 Correct 6 ms 12116 KB Output is correct
57 Correct 6 ms 12244 KB Output is correct
58 Correct 6 ms 12136 KB Output is correct
59 Correct 7 ms 12156 KB Output is correct
60 Correct 6 ms 12244 KB Output is correct
61 Correct 6 ms 12116 KB Output is correct
62 Correct 6 ms 12244 KB Output is correct
63 Correct 6 ms 12116 KB Output is correct
64 Correct 83 ms 20668 KB Output is correct
65 Correct 74 ms 20544 KB Output is correct
66 Correct 94 ms 20508 KB Output is correct
67 Correct 74 ms 20296 KB Output is correct
68 Correct 73 ms 19764 KB Output is correct
69 Correct 72 ms 19504 KB Output is correct
70 Correct 73 ms 19468 KB Output is correct
71 Correct 94 ms 19528 KB Output is correct
72 Correct 102 ms 19552 KB Output is correct
73 Correct 92 ms 33332 KB Output is correct
74 Correct 94 ms 27984 KB Output is correct
75 Correct 93 ms 20492 KB Output is correct
76 Correct 73 ms 20188 KB Output is correct
77 Correct 102 ms 20408 KB Output is correct
78 Correct 82 ms 20116 KB Output is correct
79 Correct 75 ms 19632 KB Output is correct
80 Correct 68 ms 19384 KB Output is correct
81 Correct 71 ms 20356 KB Output is correct
82 Correct 84 ms 19980 KB Output is correct
83 Correct 111 ms 25824 KB Output is correct
84 Correct 89 ms 27092 KB Output is correct
85 Correct 93 ms 27516 KB Output is correct
86 Correct 78 ms 21280 KB Output is correct
87 Correct 97 ms 20604 KB Output is correct
88 Correct 83 ms 21496 KB Output is correct
89 Correct 74 ms 21860 KB Output is correct
90 Correct 86 ms 21304 KB Output is correct
91 Correct 84 ms 21704 KB Output is correct
92 Correct 81 ms 21344 KB Output is correct
93 Correct 80 ms 24488 KB Output is correct
94 Correct 76 ms 26040 KB Output is correct
95 Correct 76 ms 24676 KB Output is correct
96 Correct 72 ms 23028 KB Output is correct
97 Correct 74 ms 21416 KB Output is correct
98 Correct 71 ms 20888 KB Output is correct
99 Correct 70 ms 20980 KB Output is correct
100 Correct 77 ms 24212 KB Output is correct
101 Correct 80 ms 21884 KB Output is correct
102 Correct 71 ms 21476 KB Output is correct
103 Correct 76 ms 20824 KB Output is correct
104 Correct 62 ms 20188 KB Output is correct
105 Correct 92 ms 35016 KB Output is correct
106 Correct 66 ms 20964 KB Output is correct
107 Correct 57 ms 20880 KB Output is correct
108 Correct 90 ms 35004 KB Output is correct
109 Correct 54 ms 20288 KB Output is correct
110 Correct 92 ms 35016 KB Output is correct
111 Correct 74 ms 20132 KB Output is correct