oj.uz

Submission #401034

# Submission time Handle Problem Language Result Execution time Memory
401034 2021-05-09T08:34:39 Z Falcon Power Plant (JOI20_power) C++17
100 / 100
 197 ms 29604 KB 
#pragma GCC optimize("O2")

#include <bits/stdc++.h>

#ifdef DEBUG
#include "debug.hpp"
#endif

using namespace std;

#define all(c)              (c).begin(), (c).end()
#define rall(c)             (c).rbegin(), (c).rend()
#define traverse(c, it)     for(auto it = (c).begin(); it != (c).end(); ++it)
#define rep(i, N)           for(int i = 0; i < (N); ++i)
#define rrep(i, N)          for(int i = (N) - 1; i >= 0; --i)
#define rep1(i, N)          for(int i = 1; i <= (N); ++i)
#define rep2(i, s, e)       for(int i = (s); i <= (e); ++i)
#define rep3(i, s, e, d)    for(int i = (s); (d) >= 0 ? i <= (e) : i >= (e); i += (d))

#ifdef DEBUG
#define debug(x...)         { \
                            ++dbg::depth; \
                            string dbg_vals = dbg::to_string(x); \
                            --dbg::depth; \
                            dbg::fprint(__func__, __LINE__, #x, dbg_vals); \
                            }

#define light_debug(x)      { \
                            dbg::light = true; \
                            dbg::dout << __func__ << ":" << __LINE__; \
                            dbg::dout << "  " << #x << " = " << x << endl; \
                            dbg::light = false; \
                            }
#else
#define debug(x...)         42
#define light_debug(x)      42
#endif


using ll = long long;

template<typename T>
inline T& ckmin(T& a, T b) { return a = a > b ? b : a; }

template<typename T>
inline T& ckmax(T& a, T b) { return a = a < b ? b : a; }

template<class Fun>
class y_combinator_result {
    Fun fun_;
public:
    template<class T>
    explicit y_combinator_result(T &&fun): fun_(std::forward<T>(fun)) {}

    template<class ...Args>
    decltype(auto) operator()(Args &&...args) {
        return fun_(std::ref(*this), std::forward<Args>(args)...);
    }
};

template<class Fun>
decltype(auto) y_combinator(Fun &&fun) {
    return y_combinator_result<std::decay_t<Fun>>(std::forward<Fun>(fun));
}


int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    
    #ifdef DEBUG
    freopen("debug", "w", stderr);
    #endif

    int n; cin >> n;
    vector<vector<int>> adj(n);
    vector<int> dp_0(n), dp_1(n);

    rep(_, n - 1) {
        int a, b; cin >> a >> b; --a, --b;
        adj[a].push_back(b), adj[b].push_back(a);
    }

    string s; cin >> s;

    y_combinator([&](auto dfs, int v, int p) -> void {
            for(int u : adj[v]) if(u != p) dfs(u, v);            

            int t{}, g{s[v] == '1'};
            dp_1[v] = g;
            for(int u : adj[v]) if(u != p)
                t += dp_1[u];
            ckmax(dp_1[v], t - g);

            dp_0[v] = dp_1[v];
            for(int u : adj[v]) if(u != p)
                ckmax(dp_0[v], max(dp_0[u], g + dp_1[u]));

            })(0, -1);

    cout << dp_0[0] << '\n';
    

    #ifdef DEBUG
    dbg::dout << "\nExecution time: " << clock() * 1000 / CLOCKS_PER_SEC  << "ms" << endl;
    #endif

    return 0;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 316 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 312 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 316 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 320 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 316 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 312 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 316 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 320 KB Output is correct
22 Correct 2 ms 460 KB Output is correct
23 Correct 2 ms 460 KB Output is correct
24 Correct 2 ms 460 KB Output is correct
25 Correct 2 ms 456 KB Output is correct
26 Correct 2 ms 460 KB Output is correct
27 Correct 2 ms 460 KB Output is correct
28 Correct 2 ms 456 KB Output is correct
29 Correct 2 ms 588 KB Output is correct
30 Correct 2 ms 448 KB Output is correct
31 Correct 2 ms 456 KB Output is correct
32 Correct 2 ms 460 KB Output is correct
33 Correct 2 ms 460 KB Output is correct
34 Correct 2 ms 456 KB Output is correct
35 Correct 2 ms 460 KB Output is correct
36 Correct 2 ms 460 KB Output is correct
37 Correct 2 ms 460 KB Output is correct
38 Correct 2 ms 460 KB Output is correct
39 Correct 2 ms 460 KB Output is correct
40 Correct 2 ms 464 KB Output is correct
41 Correct 2 ms 460 KB Output is correct
42 Correct 2 ms 464 KB Output is correct
43 Correct 2 ms 460 KB Output is correct
44 Correct 2 ms 460 KB Output is correct
45 Correct 2 ms 492 KB Output is correct
46 Correct 2 ms 460 KB Output is correct
47 Correct 2 ms 460 KB Output is correct
48 Correct 2 ms 456 KB Output is correct
49 Correct 2 ms 544 KB Output is correct
50 Correct 2 ms 460 KB Output is correct
51 Correct 2 ms 460 KB Output is correct
52 Correct 2 ms 460 KB Output is correct
53 Correct 2 ms 460 KB Output is correct
54 Correct 1 ms 460 KB Output is correct
55 Correct 2 ms 464 KB Output is correct
56 Correct 2 ms 456 KB Output is correct
57 Correct 2 ms 588 KB Output is correct
58 Correct 2 ms 456 KB Output is correct
59 Correct 2 ms 452 KB Output is correct
60 Correct 2 ms 460 KB Output is correct
61 Correct 2 ms 460 KB Output is correct
62 Correct 2 ms 460 KB Output is correct
63 Correct 2 ms 452 KB Output is correct

Subtask #3
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 316 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 312 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 316 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 320 KB Output is correct
22 Correct 2 ms 460 KB Output is correct
23 Correct 2 ms 460 KB Output is correct
24 Correct 2 ms 460 KB Output is correct
25 Correct 2 ms 456 KB Output is correct
26 Correct 2 ms 460 KB Output is correct
27 Correct 2 ms 460 KB Output is correct
28 Correct 2 ms 456 KB Output is correct
29 Correct 2 ms 588 KB Output is correct
30 Correct 2 ms 448 KB Output is correct
31 Correct 2 ms 456 KB Output is correct
32 Correct 2 ms 460 KB Output is correct
33 Correct 2 ms 460 KB Output is correct
34 Correct 2 ms 456 KB Output is correct
35 Correct 2 ms 460 KB Output is correct
36 Correct 2 ms 460 KB Output is correct
37 Correct 2 ms 460 KB Output is correct
38 Correct 2 ms 460 KB Output is correct
39 Correct 2 ms 460 KB Output is correct
40 Correct 2 ms 464 KB Output is correct
41 Correct 2 ms 460 KB Output is correct
42 Correct 2 ms 464 KB Output is correct
43 Correct 2 ms 460 KB Output is correct
44 Correct 2 ms 460 KB Output is correct
45 Correct 2 ms 492 KB Output is correct
46 Correct 2 ms 460 KB Output is correct
47 Correct 2 ms 460 KB Output is correct
48 Correct 2 ms 456 KB Output is correct
49 Correct 2 ms 544 KB Output is correct
50 Correct 2 ms 460 KB Output is correct
51 Correct 2 ms 460 KB Output is correct
52 Correct 2 ms 460 KB Output is correct
53 Correct 2 ms 460 KB Output is correct
54 Correct 1 ms 460 KB Output is correct
55 Correct 2 ms 464 KB Output is correct
56 Correct 2 ms 456 KB Output is correct
57 Correct 2 ms 588 KB Output is correct
58 Correct 2 ms 456 KB Output is correct
59 Correct 2 ms 452 KB Output is correct
60 Correct 2 ms 460 KB Output is correct
61 Correct 2 ms 460 KB Output is correct
62 Correct 2 ms 460 KB Output is correct
63 Correct 2 ms 452 KB Output is correct
64 Correct 143 ms 16000 KB Output is correct
65 Correct 151 ms 16100 KB Output is correct
66 Correct 149 ms 16112 KB Output is correct
67 Correct 145 ms 16032 KB Output is correct
68 Correct 168 ms 16024 KB Output is correct
69 Correct 175 ms 16016 KB Output is correct
70 Correct 144 ms 16044 KB Output is correct
71 Correct 197 ms 15988 KB Output is correct
72 Correct 155 ms 16092 KB Output is correct
73 Correct 163 ms 28540 KB Output is correct
74 Correct 166 ms 28500 KB Output is correct
75 Correct 153 ms 15908 KB Output is correct
76 Correct 150 ms 16044 KB Output is correct
77 Correct 154 ms 15988 KB Output is correct
78 Correct 174 ms 16012 KB Output is correct
79 Correct 157 ms 15912 KB Output is correct
80 Correct 156 ms 16128 KB Output is correct
81 Correct 127 ms 16304 KB Output is correct
82 Correct 143 ms 16068 KB Output is correct
83 Correct 157 ms 21124 KB Output is correct
84 Correct 167 ms 23120 KB Output is correct
85 Correct 178 ms 22804 KB Output is correct
86 Correct 144 ms 17304 KB Output is correct
87 Correct 154 ms 16728 KB Output is correct
88 Correct 157 ms 17088 KB Output is correct
89 Correct 134 ms 17216 KB Output is correct
90 Correct 137 ms 17016 KB Output is correct
91 Correct 161 ms 17220 KB Output is correct
92 Correct 145 ms 17564 KB Output is correct
93 Correct 137 ms 19812 KB Output is correct
94 Correct 158 ms 21640 KB Output is correct
95 Correct 145 ms 20352 KB Output is correct
96 Correct 138 ms 18568 KB Output is correct
97 Correct 153 ms 16948 KB Output is correct
98 Correct 128 ms 16468 KB Output is correct
99 Correct 136 ms 16356 KB Output is correct
100 Correct 141 ms 19528 KB Output is correct
101 Correct 171 ms 17448 KB Output is correct
102 Correct 145 ms 16668 KB Output is correct
103 Correct 166 ms 16564 KB Output is correct
104 Correct 124 ms 16808 KB Output is correct
105 Correct 162 ms 25348 KB Output is correct
106 Correct 93 ms 16708 KB Output is correct
107 Correct 88 ms 16724 KB Output is correct
108 Correct 184 ms 29324 KB Output is correct
109 Correct 90 ms 16856 KB Output is correct
110 Correct 172 ms 29604 KB Output is correct
111 Correct 130 ms 15888 KB Output is correct