제출 #939204

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
939204		vjudge1	Dango Maker (JOI18_dango_maker)	C++17	100 / 100	903 ms	18580 KiB

dango_maker

// #pragma GCC target("avx2")
// #pragma GCC optimize("O3")
// #include <x86intrin.h>

#include <bits/stdc++.h>
#include <chrono>
#include <random>

// @author: Vlapos

namespace operators
{
    template <typename T1, typename T2>
    std::istream &operator>>(std::istream &in, std::pair<T1, T2> &x)
    {
        in >> x.first >> x.second;
        return in;
    }

    template <typename T1, typename T2>
    std::ostream &operator<<(std::ostream &out, std::pair<T1, T2> x)
    {
        out << x.first << " " << x.second;
        return out;
    }

    template <typename T1>
    std::istream &operator>>(std::istream &in, std::vector<T1> &x)
    {
        for (auto &i : x)
            in >> i;
        return in;
    }

    template <typename T1>
    std::ostream &operator<<(std::ostream &out, std::vector<T1> &x)
    {
        for (auto &i : x)
            out << i << " ";
        return out;
    }

    template <typename T1>
    std::ostream &operator<<(std::ostream &out, std::set<T1> &x)
    {
        for (auto &i : x)
            out << i << " ";
        return out;
    }
}

// name spaces
using namespace std;
using namespace operators;
// end of name spaces

// defines
#define ll long long
#define ull unsigned long long
#define pb push_back
#define mp make_pair
#define pii pair<int, int>
#define pll pair<ll, ll>
#define f first
#define s second
#define uint unsigned int
#define all(vc) vc.begin(), vc.end()
// end of defines

// usefull stuff

void boost()
{
    ios_base ::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
}

inline int getbit(int &x, int &bt) { return (x >> bt) & 1; }

const int dx4[4] = {-1, 0, 0, 1};
const int dy4[4] = {0, -1, 1, 0};
const int dx8[8] = {-1, -1, -1, 0, 0, 1, 1, 1};
const int dy8[8] = {-1, -0, 1, -1, 1, -1, 0, 1};

const ll INF = (1e18) + 500;
const int BIG = (1e9) * 2 + 100;
const int MAXN = (1e5) + 5;
const int MOD7 = (1e9) + 7;
const int MOD9 = (1e9) + 9;
const uint MODFFT = 998244353;

#define int ll

struct test
{
    void solve(int testcase)
    {
        boost();
        int n, m;
        cin >> n >> m;
        vector<vector<char>> f(n, vector<char>(m));
        cin >> f;
        int res = 0;
        for (int d = 2; d < n + m; ++d)
        {
            vector<vector<int>> dp(n, vector<int>(2, 0));
            int cres = 0;
            for (int i = 0; i < n; ++i)
            {
                if (i)
                {
                    dp[i][0] = dp[i - 1][0];
                    dp[i][1] = dp[i - 1][1];
                }
                int j = d - i;
                if (j >= 0 and j < m and i - 2 >= 0 and f[i - 2][j] == 'R' and f[i - 1][j] == 'G' and f[i][j] == 'W')
                {
                    dp[i][1] = max(dp[i][1], 1 + max(dp[i - 1][1], i - 3 >= 0 ? dp[i - 3][0] : 0));
                    // cout << "!\n";
                }
                if (j >= 0 and j < m and j - 2 >= 0 and f[i][j - 2] == 'R' and f[i][j - 1] == 'G' and f[i][j] == 'W')
                {
                    dp[i][0] = max(dp[i][0], 1 + (i ? max(dp[i - 1][0], dp[i - 1][1]) : 0));
                    // cout << "!\n";
                }
            }
            res += max(dp[n - 1][0], dp[n - 1][1]);
        }
        cout << res << "\n";
    }
};

main()
{
    boost();
    int q = 1;
    // cin >> q;
    for (int i = 0; i < q; i++)
    {
        test t;
        t.solve(i);
    }
    return 0;
}
//[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]//
//                                                                                    //
//                               Coded by Der_Vlἀpos                                  //
//                                                                                    //
//[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]//

컴파일 시 표준 에러 (stderr) 메시지

dango_maker.cpp: In member function 'void test::solve(long long int)':
dango_maker.cpp:108:17: warning: unused variable 'cres' [-Wunused-variable]
  108 |             int cres = 0;
      |                 ^~~~
dango_maker.cpp: At global scope:
dango_maker.cpp:134:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
  134 | main()
      | ^~~~

• Subtask 1: 13 / 13
• Subtask 2: 20 / 20
• Subtask 3: 67 / 67