oj.uz

Submission #648448

# Submission time Handle Problem Language Result Execution time Memory
648448 2022-10-06T13:50:19 Z Kirill22 Game (eJOI20_game) C++17
100 / 100
 78 ms 97588 KB 
#include "bits/stdc++.h"

using namespace std;

vector<vector<vector<vector<int>>>> dp;

vector<int> a, b;

int solve(int A, int B, int c, int d) {
    if (A == (int) a.size() && B == (int) b.size() && c == 0 && d == 0) {
        return 0;
    }
    vector<int> upda, updb;
    if (A < a.size()) upda = {A};
    if (B < b.size()) updb = {B};
    if (dp[A][B][c][d] == (int) -2e9) {
        for (auto i : upda) {
            dp[A][B][c][d] = max(dp[A][B][c][d], -(a[i] - 4) - solve(A + 1, B, c, d + 1));
        }
        for (auto i : updb) {
            auto tc = c, td = d;
            int L = b[i] / 2, R = b[i] - L, res = 0;
            if (L >= 2) {
                tc++;
                res += L - 2;
            } else if (L) {
                res++;
            }
            if (R >= 2) {
                tc++;
                res += R - 2;
            } else if (R) {
                res++;
            }
            dp[A][B][c][d] = max(dp[A][B][c][d], -res - solve(A, B + 1, tc, td));
        }
        if (c) {
            dp[A][B][c][d] = max(dp[A][B][c][d], abs(2 + solve(A, B, c - 1, d)));
        }
        if (d) {
            dp[A][B][c][d] = max(dp[A][B][c][d], abs(4 + solve(A, B, c, d - 1)));
        }
    }
    return dp[A][B][c][d];
}

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int n, m;
    cin >> n >> m;
    auto get = [&] (int i, int j) {
        return i * m + j;
    };
    auto check = [&] (int i, int j) {
        return (i >= 0 && i < n && j >= 0 && j < m);
    };
    vector<vector<int>> g(n * m);
    vector<int> cnt(n * m, 4);
    auto add = [&] (int a, int b, int c, int d) {
        if (check(a, b)) {
            cnt[get(a, b)]--;
        }
        if (check(c, d)) {
            cnt[get(c, d)]--;
        }
        if (check(a, b) && check(c, d)) {
            g[get(a, b)].push_back(get(c, d));
            g[get(c, d)].push_back(get(a, b));
        }
    };
    for (int i = 0; i < n + 1; i++) {
        for (int j = 0; j < m; j++) {
            char c;
            cin >> c;
            if (c == '0') {
                add(i - 1, j, i, j);
            }
        }
    }
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < m + 1; j++) {
            char c;
            cin >> c;
            if (c == '0') {
                add(i, j - 1, i, j);
            }
        }
    }
    vector<int> used(n * m);
    int c = 0, was;
    function<void(int)> dfs = [&] (int v) {
        used[v] = 1;
        if ((int) g[v].size() == 1) {
            was = 1;
        }
        c++;
        for (auto u : g[v]) {
            if (!used[u]) {
                dfs(u);
            }
        }
    };
    vector<int> A, B, C, D;
    for (int i = 0; i < n * m; i++) {
        if (cnt[i] != 4 && !used[i]) {
            c = 0, was = 0;
            dfs(i);
            if (was || c == 1) {
                B.push_back(c);
            } else {
                A.push_back(c);
            }
        }
    }
    sort(A.begin(), A.end());
    sort(B.begin(), B.end());
    a = A, b = B;
    dp.resize((int) a.size() + 1, vector<vector<vector<int>>> ((int) b.size() + 1, vector<vector<int>> ((int) b.size() * 2 + 1,
            vector<int> ((int) a.size() + 1, -(int) 2e9))));
    cout << solve(0, 0, 0, 0);
}

Compilation message

game.cpp: In function 'int solve(int, int, int, int)':
game.cpp:14:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   14 |     if (A < a.size()) upda = {A};
      |         ~~^~~~~~~~~~
game.cpp:15:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   15 |     if (B < b.size()) updb = {B};
      |         ~~^~~~~~~~~~

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 316 KB Output is correct
4 Correct 1 ms 320 KB Output is correct
5 Correct 1 ms 320 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 316 KB Output is correct
2 Correct 0 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 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 320 KB Output is correct
9 Correct 1 ms 324 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 324 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 316 KB Output is correct
16 Correct 0 ms 212 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 320 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 316 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 320 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 320 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 1 ms 212 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 316 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 316 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 320 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 336 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 316 KB Output is correct
4 Correct 1 ms 320 KB Output is correct
5 Correct 1 ms 316 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 320 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 0 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 1 ms 320 KB Output is correct
17 Correct 1 ms 324 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 324 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 316 KB Output is correct
24 Correct 0 ms 212 KB Output is correct
25 Correct 1 ms 320 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 1 ms 212 KB Output is correct
28 Correct 1 ms 316 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 1 ms 320 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 1 ms 320 KB Output is correct
36 Correct 1 ms 212 KB Output is correct
37 Correct 1 ms 340 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 1 ms 212 KB Output is correct
40 Correct 1 ms 212 KB Output is correct
41 Correct 1 ms 212 KB Output is correct
42 Correct 1 ms 212 KB Output is correct
43 Correct 1 ms 212 KB Output is correct
44 Correct 1 ms 212 KB Output is correct
45 Correct 1 ms 212 KB Output is correct
46 Correct 1 ms 212 KB Output is correct
47 Correct 1 ms 212 KB Output is correct
48 Correct 1 ms 340 KB Output is correct
49 Correct 1 ms 212 KB Output is correct
50 Correct 1 ms 212 KB Output is correct
51 Correct 1 ms 340 KB Output is correct
52 Correct 1 ms 340 KB Output is correct
53 Correct 1 ms 340 KB Output is correct
54 Correct 1 ms 316 KB Output is correct
55 Correct 1 ms 340 KB Output is correct
56 Correct 1 ms 340 KB Output is correct
57 Correct 1 ms 340 KB Output is correct
58 Correct 1 ms 340 KB Output is correct
59 Correct 1 ms 340 KB Output is correct
60 Correct 1 ms 316 KB Output is correct
61 Correct 0 ms 340 KB Output is correct
62 Correct 1 ms 340 KB Output is correct
63 Correct 1 ms 320 KB Output is correct
64 Correct 1 ms 340 KB Output is correct
65 Correct 1 ms 336 KB Output is correct
66 Correct 18 ms 5600 KB Output is correct
67 Correct 35 ms 12748 KB Output is correct
68 Correct 26 ms 8916 KB Output is correct
69 Correct 19 ms 5824 KB Output is correct
70 Correct 20 ms 7232 KB Output is correct
71 Correct 26 ms 7764 KB Output is correct
72 Correct 39 ms 14304 KB Output is correct
73 Correct 78 ms 97588 KB Output is correct
74 Correct 29 ms 9824 KB Output is correct
75 Correct 32 ms 9036 KB Output is correct
76 Correct 25 ms 8928 KB Output is correct
77 Correct 30 ms 17628 KB Output is correct
78 Correct 30 ms 10592 KB Output is correct
79 Correct 32 ms 9268 KB Output is correct
80 Correct 49 ms 15956 KB Output is correct
81 Correct 28 ms 6232 KB Output is correct
82 Correct 35 ms 12004 KB Output is correct
83 Correct 39 ms 10176 KB Output is correct