제출 #891284

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
891284		SorahISA	Financial Report (JOI21_financial)	C++17	0 / 100	4049 ms	7516 KiB

Main

#ifndef SorahISA
#define SorahISA
#include SorahISA __FILE__ SorahISA

const int INF = INT_MAX;

void solve() {
    int N, D; cin >> N >> D;
    
    vector<int> A(N);
    for (int &x : A) cin >> x;
    
    vector<int> dp(N, 1);
    for (int i = N-1; i >= 0; --i) {
        for (int j = i+1; j <= min(i+D, N-1); ++j) {
            if (A[j] > A[i]) chmax(dp[i], dp[j] + 1);
            if (A[j] == A[i]) chmax(dp[i], dp[j]);
        }
    }
    cout << *max_element(ALL(dp)) << "\n";
    
    // vector dp(2, vector<int>(N, 0));
    // for (int pick = 1; pick <= N+1; ++pick) {
    //     fill(ALL(dp[pick&1]), INF);
    //     if (pick == 1) dp[pick&1][0] = A[0];
    //     for (int i = 1; i < N; ++i) {
    //         for (int j = i-1; j >= max(i-D, int(0)); --j) {
    //             chmin(dp[pick&1][i], (dp[(pick^1)&1][j] >= A[i] ? dp[pick&1][j] : A[i]));
    //         }
    //         // debug(pick, i, dp[pick&1][i]);
    //     }
    //     if (dp[pick&1][N-1] == INF) { cout << pick - 1 << "\n"; break; }
    // }
}

int32_t main() {
    fastIO();
    
    int t = 1; // cin >> t;
    for (int _ = 1; _ <= t; ++_) {
        solve();
    }
    
    return 0;
}

#else

#ifdef local
#define _GLIBCXX_DEBUG 1
#endif
#pragma GCC optimize("Ofast", "unroll-loops")
#include <bits/stdc++.h>
using namespace std;

using int64 = long long;
#define int int64
using float80 = long double;
#define double float80
using pii = pair<int, int>;
template <typename T> using Prior = std::priority_queue<T>;
template <typename T> using prior = std::priority_queue<T, vector<T>, greater<T>>;

#define eb emplace_back
#define ef emplace_front
#define ee emplace
#define pb pop_back
#define pf pop_front
#define ALL(x) begin(x), end(x)
#define RALL(x) rbegin(x), rend(x)
#define SZ(x) ((int)(x).size())

#ifdef local
#define fastIO() void()
#define debug(...) \
    fprintf(stderr, "\u001b[33m"), \
    fprintf(stderr, "At [%s], line %d: (%s) = ", __FUNCTION__, __LINE__, #__VA_ARGS__), \
    _do(__VA_ARGS__), \
    fprintf(stderr, "\u001b[0m")
template <typename T> void _do(T &&_t) { cerr << _t << "\n"; }
template <typename T, typename ...U> void _do(T &&_t, U &&..._u) { cerr << _t << ", ", _do(_u...); }
#else
#define fastIO() ios_base::sync_with_stdio(0), cin.tie(0)
#define debug(...) void()
#endif

template <typename T, typename U> bool chmin(T &lhs, U rhs) { return lhs > rhs ? lhs = rhs, 1 : 0; }
template <typename T, typename U> bool chmax(T &lhs, U rhs) { return lhs < rhs ? lhs = rhs, 1 : 0; }

#endif

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