Submission #576710

#	Time	Username	Problem	Language	Result	Execution time	Memory
576710		Lucpp	Uplifting Excursion (BOI22_vault)	C++17	5 / 100	1587 ms	1364 KiB

vault

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

const int MAX = 25*50*51;
const int INF = 1e8;

int main(){
    cin.tie(0);
    ios_base::sync_with_stdio(false);
    int M; ll L;
    cin >> M >> L;
    vector<int> a(2*M+1);
    for(int i = 0; i < 2*M+1; ++i) cin >> a[i];
    if(L > MAX || L < -MAX){
        cout << "impossible\n";
        return 0;
    }
    vector<int> dp(2*MAX+1, -INF);
    dp[MAX] = 0;
    for(int i = 0; i < 2*M+1; ++i){
        int v = i-M;
        vector<int> dp2(2*MAX+1, -INF);
        for(int j = 0; j < 2*MAX+1; ++j){
            for(int k = 0; k <= a[i]; ++k){
                if(j+v*k < 0 || j+v*k >= 2*MAX+1) break;
                dp2[j+v*k] = max(dp2[j+v*k], dp[j]+k);
            }
        }
        dp = dp2;
    }
    if(dp[MAX+L] < 0) cout << "impossible\n";
    else cout << dp[MAX+L] << "\n";
}

• Subtask 1: 5 / 5
• Subtask 2: 0 / 15
• Subtask 3-1: 0 / 10
• Subtask 3-2: 0 / 10
• Subtask 4-1: 0 / 10
• Subtask 4-2: 0 / 10
• Subtask 5-1: 0 / 10
• Subtask 5-2: 0 / 10
• Subtask 6-1: 0 / 10
• Subtask 6-2: 0 / 10