Submission #1067539

#	Time	Username	Problem	Language	Result	Execution time	Memory
1067539		VMaksimoski008	Financial Report (JOI21_financial)	C++17	28 / 100	4048 ms	502436 KiB

Main

#include <bits/stdc++.h>
//#define int long long

using namespace std;

using ll = long long;
using pii = pair<int, int>;
using pll = pair<ll, ll>;

const int mod = 1e9 + 7;
const int LOG = 20;
const int maxn = 1e5 + 5;

int dp[7005][7005], pref[7005][7005], suf[7005][7005];

signed main() {
    int n, d;
    cin >> n >> d;

    vector<int> v(n+1); set<int> s;
    for(int i=1; i<=n; i++) cin >> v[i], s.insert(v[i]);

    vector<int> comp(s.begin(), s.end());
    for(int i=1; i<=n; i++) v[i] = lower_bound(comp.begin(), comp.end(), v[i]) - comp.begin();
    int m = s.size();

    for(int i=1; i<=n; i++) {
        //prv element
        dp[i][v[i]] = 1;
        // for(int k=i-1; k>=max(1, i-d); k--)
        //     for(int j=0; j<v[i]; j++) dp[i][v[i]] = max(dp[i][v[i]], dp[k][j] + 1);
        for(int k=i-1; k>=max(1, i-d); k--)
            for(int j=v[i]; j<m; j++) dp[i][j] = max(dp[i][j], dp[k][j]);
        // for(int k=i-1; k>=max(1, i-d); k--) dp[i][v[i]] = max(dp[i][v[i]], suf[k][v[i]]);
        for(int k=i-1; k>=max(1, i-d); k--) dp[i][v[i]] = max(dp[i][v[i]], (v[i] >= 1 ? pref[k][v[i]-1] + 1 : 1));

        pref[i][0] = dp[i][0]; suf[i][m-1] = dp[i][m-1];
        for(int j=1; j<m; j++) pref[i][j] = max(pref[i][j-1], dp[i][j]);
        for(int j=m-2; j>=0; j--) suf[i][j] = max(suf[i][j+1], dp[i][j]);
    }

    int ans = 0;
    for(int i=0; i<m; i++) ans = max(ans, dp[n][i]);
    cout << ans << '\n';
    return 0;
}

• Subtask 1: 14 / 14
• Subtask 2: 14 / 14
• Subtask 3: 0 / 20
• Subtask 4: 0 / 12
• Subtask 5: 0 / 5
• Subtask 6: 0 / 35