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답안 #763386

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
763386 2023-06-22T08:56:46 Z vjudge1 Power Plant (JOI20_power) C++17
100 / 100
 124 ms 27936 KB 
#include <bits/stdc++.h>

// #pragma GCC optimize("O3,no-stack-protector,fast-math,unroll-loops,tree-vectorize")
// #pragma GCC target("avx2,popcnt,lzcnt,abm,bmi,bmi2,fma")

typedef unsigned short u16;
typedef short i16;
typedef unsigned int u32;
typedef int i32;
typedef unsigned long long u64;
typedef long long i64;
typedef float f32;
typedef double f64;
typedef long double f80;
typedef long double f128;

namespace std
{
    template <typename T, typename U>
    struct hash<pair<T, U>>
    {
        size_t operator()(const pair<T, U>& x) const { return hash<T>()(x.first) ^ hash<U>()(x.second); }
    };
}  // namespace std

template <typename T>
using limits = std::numeric_limits<T>;

template <typename T, typename U>
using pa = std::pair<T, U>;

template <typename T, typename U>
using umap = std::unordered_map<T, U>;

#ifdef LOCAL
#include <chrono>

#include "tools.hpp"
#define here(...)                                                                \
    std::cerr << __func__ << ':' << __LINE__ << " [" << #__VA_ARGS__ << "] = ["; \
    _debug(__VA_ARGS__)
#else
#define here(...)
#endif

typedef std::vector<std::vector<u32>> AdjList;

AdjList adj;
std::vector<i32> dp, state;
i32 ans{};

void dfs(u32 u, u32 prev)
{
    i32 sum{}, mx{};
    for (auto& v : adj[u])
    {
        if (v != prev)
        {
            dfs(v, u);
            sum += dp[v];
            mx = std::max(mx, dp[v]);
        }
    }
    if (state[u])
    {
        ans = std::max(ans, std::max(sum - 1, mx + 1));
    }
    else
    {
        ans = std::max(ans, sum);
    }
    dp[u] = std::max(state[u], sum - state[u]);
}

void solve()
{
    u32 n;
    std::cin >> n;
    adj.assign(n, std::vector<u32>());
    dp.assign(n, 0);
    state.assign(n, 0);
    for (u32 i = 0; i < n - 1; ++i)
    {
        u32 u, v;
        std::cin >> u >> v;
        u--, v--;
        adj[u].push_back(v);
        adj[v].push_back(u);
    }
    for (auto& i : state)
    {
        char ci;
        std::cin >> ci;
        i = ci - '0';
    }
    dfs(0, limits<u32>::max());
    std::cout << ans << '\n';
}

int main()
{
    std::ios_base::sync_with_stdio(false);
    std::cin.tie(nullptr);
    std::cout.tie(nullptr);
#ifdef LOCAL
    using std::chrono::duration_cast;
    using std::chrono::high_resolution_clock;
    using std::chrono::microseconds;
    auto st = high_resolution_clock::now();
    std::ifstream input("./in.txt");
    std::ofstream output("./log/bsol.txt");
    auto cin_buf = std::cin.rdbuf(input.rdbuf());
    auto cout_buf = std::cout.rdbuf(output.rdbuf());
#endif
    solve();
#ifdef LOCAL
    std::cin.rdbuf(cin_buf);
    std::cout.rdbuf(cout_buf);
    input.close();
    output.close();
    auto ed = high_resolution_clock::now();
    std::cerr << "Time elapsed: " << duration_cast<microseconds>(ed - st).count() << " microseconds\n";
#endif
    return 0;
}

Subtask #1
6.0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 320 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 320 KB Output is correct
11 Correct 1 ms 320 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 320 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 1 ms 212 KB Output is correct

Subtask #2
41.0 / 41.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 320 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 320 KB Output is correct
11 Correct 1 ms 320 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 320 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 468 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 460 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 456 KB Output is correct
28 Correct 1 ms 468 KB Output is correct
29 Correct 1 ms 468 KB Output is correct
30 Correct 1 ms 468 KB Output is correct
31 Correct 1 ms 340 KB Output is correct
32 Correct 1 ms 436 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 1 ms 340 KB Output is correct
35 Correct 1 ms 340 KB Output is correct
36 Correct 1 ms 340 KB Output is correct
37 Correct 1 ms 468 KB Output is correct
38 Correct 1 ms 468 KB Output is correct
39 Correct 1 ms 456 KB Output is correct
40 Correct 1 ms 468 KB Output is correct
41 Correct 1 ms 468 KB Output is correct
42 Correct 1 ms 468 KB Output is correct
43 Correct 1 ms 468 KB Output is correct
44 Correct 1 ms 468 KB Output is correct
45 Correct 1 ms 468 KB Output is correct
46 Correct 1 ms 464 KB Output is correct
47 Correct 1 ms 468 KB Output is correct
48 Correct 1 ms 440 KB Output is correct
49 Correct 2 ms 468 KB Output is correct
50 Correct 1 ms 452 KB Output is correct
51 Correct 1 ms 468 KB Output is correct
52 Correct 1 ms 468 KB Output is correct
53 Correct 1 ms 448 KB Output is correct
54 Correct 1 ms 468 KB Output is correct
55 Correct 1 ms 468 KB Output is correct
56 Correct 1 ms 468 KB Output is correct
57 Correct 1 ms 596 KB Output is correct
58 Correct 1 ms 436 KB Output is correct
59 Correct 1 ms 468 KB Output is correct
60 Correct 1 ms 468 KB Output is correct
61 Correct 1 ms 460 KB Output is correct
62 Correct 1 ms 468 KB Output is correct
63 Correct 1 ms 468 KB Output is correct

Subtask #3
53.0 / 53.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 320 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 320 KB Output is correct
11 Correct 1 ms 320 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 320 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 468 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 460 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 456 KB Output is correct
28 Correct 1 ms 468 KB Output is correct
29 Correct 1 ms 468 KB Output is correct
30 Correct 1 ms 468 KB Output is correct
31 Correct 1 ms 340 KB Output is correct
32 Correct 1 ms 436 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 1 ms 340 KB Output is correct
35 Correct 1 ms 340 KB Output is correct
36 Correct 1 ms 340 KB Output is correct
37 Correct 1 ms 468 KB Output is correct
38 Correct 1 ms 468 KB Output is correct
39 Correct 1 ms 456 KB Output is correct
40 Correct 1 ms 468 KB Output is correct
41 Correct 1 ms 468 KB Output is correct
42 Correct 1 ms 468 KB Output is correct
43 Correct 1 ms 468 KB Output is correct
44 Correct 1 ms 468 KB Output is correct
45 Correct 1 ms 468 KB Output is correct
46 Correct 1 ms 464 KB Output is correct
47 Correct 1 ms 468 KB Output is correct
48 Correct 1 ms 440 KB Output is correct
49 Correct 2 ms 468 KB Output is correct
50 Correct 1 ms 452 KB Output is correct
51 Correct 1 ms 468 KB Output is correct
52 Correct 1 ms 468 KB Output is correct
53 Correct 1 ms 448 KB Output is correct
54 Correct 1 ms 468 KB Output is correct
55 Correct 1 ms 468 KB Output is correct
56 Correct 1 ms 468 KB Output is correct
57 Correct 1 ms 596 KB Output is correct
58 Correct 1 ms 436 KB Output is correct
59 Correct 1 ms 468 KB Output is correct
60 Correct 1 ms 468 KB Output is correct
61 Correct 1 ms 460 KB Output is correct
62 Correct 1 ms 468 KB Output is correct
63 Correct 1 ms 468 KB Output is correct
64 Correct 70 ms 14244 KB Output is correct
65 Correct 68 ms 14352 KB Output is correct
66 Correct 84 ms 14324 KB Output is correct
67 Correct 79 ms 14344 KB Output is correct
68 Correct 67 ms 14288 KB Output is correct
69 Correct 99 ms 14360 KB Output is correct
70 Correct 68 ms 14304 KB Output is correct
71 Correct 77 ms 14268 KB Output is correct
72 Correct 105 ms 14344 KB Output is correct
73 Correct 82 ms 26860 KB Output is correct
74 Correct 123 ms 26880 KB Output is correct
75 Correct 100 ms 14156 KB Output is correct
76 Correct 73 ms 14224 KB Output is correct
77 Correct 79 ms 14252 KB Output is correct
78 Correct 97 ms 14156 KB Output is correct
79 Correct 106 ms 14276 KB Output is correct
80 Correct 82 ms 14216 KB Output is correct
81 Correct 67 ms 14620 KB Output is correct
82 Correct 64 ms 14388 KB Output is correct
83 Correct 78 ms 19404 KB Output is correct
84 Correct 91 ms 21592 KB Output is correct
85 Correct 78 ms 21176 KB Output is correct
86 Correct 84 ms 15648 KB Output is correct
87 Correct 92 ms 15044 KB Output is correct
88 Correct 64 ms 15564 KB Output is correct
89 Correct 66 ms 15508 KB Output is correct
90 Correct 124 ms 15388 KB Output is correct
91 Correct 82 ms 15600 KB Output is correct
92 Correct 68 ms 15924 KB Output is correct
93 Correct 74 ms 18408 KB Output is correct
94 Correct 79 ms 20052 KB Output is correct
95 Correct 69 ms 18676 KB Output is correct
96 Correct 65 ms 16840 KB Output is correct
97 Correct 94 ms 15432 KB Output is correct
98 Correct 73 ms 14840 KB Output is correct
99 Correct 88 ms 14632 KB Output is correct
100 Correct 69 ms 17808 KB Output is correct
101 Correct 83 ms 15780 KB Output is correct
102 Correct 98 ms 15060 KB Output is correct
103 Correct 87 ms 14896 KB Output is correct
104 Correct 46 ms 14952 KB Output is correct
105 Correct 104 ms 23724 KB Output is correct
106 Correct 48 ms 14956 KB Output is correct
107 Correct 52 ms 15032 KB Output is correct
108 Correct 82 ms 27764 KB Output is correct
109 Correct 68 ms 14944 KB Output is correct
110 Correct 86 ms 27936 KB Output is correct
111 Correct 64 ms 14140 KB Output is correct