Submission #770811

#	Time	Username	Problem	Language	Result	Execution time	Memory
770811		shrimb	Fruits (NOI22_fruits)	C++17	0 / 100	773 ms	64424 KiB

Main

#include"bits/stdc++.h"
using namespace std;

#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;

template<class x>
using ordered_set = tree<x, null_type,less<x>, rb_tree_tag,tree_order_statistics_node_update>;

#define int long long
#define endl '\n'
#define mod 1000000007
//\
#define mod 1686876991
const int maxn = 2002;
int n;
int dp[maxn][maxn];
int a[maxn], c[maxn], p[maxn], e[maxn], mx[maxn];
bool used[maxn];


signed main () {
    cin.tie(0)->sync_with_stdio(0);

    cin >> n;

    for (int i = 1 ; i <= n ; i++) {
        cin >> a[i];
        if (~a[i]) used[a[i]] = 1;
        else e[i] = 1;
        e[i] += e[i-1];
        mx[i] = max(mx[i-1], a[i]);
    }
    for (int i = 1 ; i <= n ; i++) {
        cin >> c[i];
        p[i] = p[i - 1] + !used[i];
    }

    for (int i = 1 ; i <= n ; i++) {
        for (int j = 1 ; j <= n ; j++) {
            dp[i][j] = dp[i][j-1];
            if (a[i] == -1) {
                if (mx[i] > j) {
                    dp[i][j] = -1e15;
                } else {
                    if (!used[j]) dp[i][j] = max(dp[i][j], dp[i-1][j-1] + c[j]);
                    if (e[i] <= p[j]) dp[i][j] = max(dp[i][j], dp[i-1][j]);
                }
            } else {
                if (mx[i] > j) {
                    dp[i][j] = -1e15;
                } else {
                    if (j < a[i]) dp[i][j] = -1e15;
                    else dp[i][j] = max(dp[i][j], dp[i-1][j]);
                    if (j == a[i]) dp[i][j] = max(dp[i][j], dp[i-1][j-1] + c[j]);
                }
            }
        }
        cout << max(0ll,dp[i][n]) << " ";
    }


}

Compilation message (stderr)

Main.cpp:14:1: warning: multi-line comment [-Wcomment]
   14 | //\
      | ^

• Subtask 1: 0 / 6
• Subtask 2: 0 / 5
• Subtask 3: 0 / 11
• Subtask 4: 0 / 13
• Subtask 5: 0 / 23
• Subtask 6: 0 / 42