Submission #937834

#	Time	Username	Problem	Language	Result	Execution time	Memory
937834		LucaIlie	Uplifting Excursion (BOI22_vault)	C++17	5 / 100	5067 ms	5200 KiB

vault

#include <bits/stdc++.h>

using namespace std;

const int MAX_M = 300;
const int MAX_S = 3e5;
const int MIN_S = -MAX_S;
const long long INF = 1e18;
int a[2 * MAX_M + 1];
long long maxObj[MAX_S - MIN_S + 1];

int main() {
    int m, l;

    cin >> m >> l;
    for ( int i = 0; i <= 2 * m; i++ )
        cin >> a[i];

    for ( int s = 0; s <= MAX_S - MIN_S; s++ )
        maxObj[s] = -INF;
    maxObj[0 - MIN_S] = 0;
    for ( int i = 0; i <= 2 * m; i++ ) {
        int x = i - m;
        for ( int j = 1; j <= a[i] && j * x <= MAX_S && j * x >= MIN_S; j++ ) {
            if ( x > 0 ) {
                for ( int s = MAX_S - MIN_S; s >= x; s-- )
                    maxObj[s] = max( maxObj[s], maxObj[s - x] + 1 );
            } else {
                for ( int s = x; s <= MAX_S - MIN_S; s++ )
                    maxObj[s] = max( maxObj[s], maxObj[s - x] + 1 );
            }
        }
    }

    if ( l < MIN_S || l > MAX_S || maxObj[l - MIN_S] < 0 )
        cout << "impossible\n";
    else
        cout << maxObj[l - MIN_S] << "\n";

    return 0;
}

• 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