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Submission #857708

# Submission time Handle Problem Language Result Execution time Memory
857708 2023-10-06T16:05:34 Z vgtcross Uplifting Excursion (BOI22_vault) C++17
5 / 100
 431 ms 1880 KB 
#include <bits/stdc++.h>

using namespace std;
using ll = long long;
using pii = pair<int, int>;

const int N = 150000;
int dp[N], nx[N];

void solve() {
    int m;
    ll x;
    cin >> m >> x;
    ll mins = 0, maxs = 0;
    vector<pii> v;
    for (int i = -m; i <= m; ++i) {
        int f;
        cin >> f;
        
        if (i < 0) mins += f * i;
        else maxs += f * i;
        
        int z = 1;
        while (f > z) {
            v.push_back({z * i, z});
            f -= z;
            z *= 2;
        }
        if (f > 0) v.push_back({f * i, f});
    }
    
    memset(dp, 0xc0, sizeof dp);
    memset(nx, 0xc0, sizeof nx);
    dp[0] = nx[0] = 0;
    for (pii p : v) {
        for (int i = -70000; i <= 70000; ++i) {
            int j = i + p.first;
            if (-70000 <= j && j <= 70000) nx[(j + N) % N] = max(nx[(j + N) % N], dp[(i + N) % N] + p.second);
        }
        copy(nx, nx+N, dp);
    }
    
    if (x < mins || x > maxs) cout << "impossible\n";
    else cout << (dp[(x + N) % N] < 0 ? "impossible" : to_string(dp[(x + N) % N])) << '\n';
}

int main() {
    cin.tie(0) -> sync_with_stdio(0);
    
    solve();
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 1628 KB Output is correct
2 Correct 3 ms 1624 KB Output is correct
3 Correct 2 ms 1624 KB Output is correct
4 Correct 11 ms 1628 KB Output is correct
5 Correct 166 ms 1628 KB Output is correct
6 Correct 175 ms 1628 KB Output is correct
7 Correct 72 ms 1628 KB Output is correct
8 Correct 166 ms 1628 KB Output is correct
9 Correct 205 ms 1628 KB Output is correct
10 Correct 7 ms 1624 KB Output is correct
11 Correct 6 ms 1624 KB Output is correct

Subtask #2
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 1628 KB Output is correct
2 Correct 3 ms 1624 KB Output is correct
3 Correct 2 ms 1624 KB Output is correct
4 Correct 11 ms 1628 KB Output is correct
5 Correct 166 ms 1628 KB Output is correct
6 Correct 175 ms 1628 KB Output is correct
7 Correct 72 ms 1628 KB Output is correct
8 Correct 166 ms 1628 KB Output is correct
9 Correct 205 ms 1628 KB Output is correct
10 Correct 7 ms 1624 KB Output is correct
11 Correct 6 ms 1624 KB Output is correct
12 Correct 4 ms 1880 KB Output is correct
13 Correct 3 ms 1628 KB Output is correct
14 Correct 2 ms 1628 KB Output is correct
15 Correct 11 ms 1624 KB Output is correct
16 Correct 165 ms 1624 KB Output is correct
17 Correct 168 ms 1628 KB Output is correct
18 Correct 70 ms 1628 KB Output is correct
19 Correct 167 ms 1624 KB Output is correct
20 Correct 208 ms 1628 KB Output is correct
21 Correct 6 ms 1624 KB Output is correct
22 Correct 7 ms 1624 KB Output is correct
23 Correct 431 ms 1628 KB Output is correct
24 Incorrect 394 ms 1632 KB Output isn't correct
25 Halted 0 ms 0 KB -

Subtask #3-1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 1628 KB Output is correct
2 Incorrect 27 ms 1636 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #3-2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 1628 KB Output is correct
2 Incorrect 27 ms 1636 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #4-1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 1628 KB Output is correct
2 Incorrect 27 ms 1636 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #4-2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 1628 KB Output is correct
2 Correct 3 ms 1624 KB Output is correct
3 Correct 2 ms 1624 KB Output is correct
4 Correct 11 ms 1628 KB Output is correct
5 Correct 166 ms 1628 KB Output is correct
6 Correct 175 ms 1628 KB Output is correct
7 Correct 72 ms 1628 KB Output is correct
8 Correct 166 ms 1628 KB Output is correct
9 Correct 205 ms 1628 KB Output is correct
10 Correct 7 ms 1624 KB Output is correct
11 Correct 6 ms 1624 KB Output is correct
12 Correct 11 ms 1628 KB Output is correct
13 Incorrect 27 ms 1636 KB Output isn't correct
14 Halted 0 ms 0 KB -

Subtask #5-1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 1628 KB Output is correct
2 Incorrect 27 ms 1636 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #5-2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 1628 KB Output is correct
2 Correct 3 ms 1624 KB Output is correct
3 Correct 2 ms 1624 KB Output is correct
4 Correct 11 ms 1628 KB Output is correct
5 Correct 166 ms 1628 KB Output is correct
6 Correct 175 ms 1628 KB Output is correct
7 Correct 72 ms 1628 KB Output is correct
8 Correct 166 ms 1628 KB Output is correct
9 Correct 205 ms 1628 KB Output is correct
10 Correct 7 ms 1624 KB Output is correct
11 Correct 6 ms 1624 KB Output is correct
12 Correct 4 ms 1880 KB Output is correct
13 Correct 3 ms 1628 KB Output is correct
14 Correct 2 ms 1628 KB Output is correct
15 Correct 11 ms 1624 KB Output is correct
16 Correct 165 ms 1624 KB Output is correct
17 Correct 168 ms 1628 KB Output is correct
18 Correct 70 ms 1628 KB Output is correct
19 Correct 167 ms 1624 KB Output is correct
20 Correct 208 ms 1628 KB Output is correct
21 Correct 6 ms 1624 KB Output is correct
22 Correct 7 ms 1624 KB Output is correct
23 Correct 431 ms 1628 KB Output is correct
24 Incorrect 394 ms 1632 KB Output isn't correct
25 Halted 0 ms 0 KB -

Subtask #6-1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 1628 KB Output is correct
2 Incorrect 27 ms 1636 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #6-2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 1628 KB Output is correct
2 Correct 3 ms 1624 KB Output is correct
3 Correct 2 ms 1624 KB Output is correct
4 Correct 11 ms 1628 KB Output is correct
5 Correct 166 ms 1628 KB Output is correct
6 Correct 175 ms 1628 KB Output is correct
7 Correct 72 ms 1628 KB Output is correct
8 Correct 166 ms 1628 KB Output is correct
9 Correct 205 ms 1628 KB Output is correct
10 Correct 7 ms 1624 KB Output is correct
11 Correct 6 ms 1624 KB Output is correct
12 Correct 4 ms 1880 KB Output is correct
13 Correct 3 ms 1628 KB Output is correct
14 Correct 2 ms 1628 KB Output is correct
15 Correct 11 ms 1624 KB Output is correct
16 Correct 165 ms 1624 KB Output is correct
17 Correct 168 ms 1628 KB Output is correct
18 Correct 70 ms 1628 KB Output is correct
19 Correct 167 ms 1624 KB Output is correct
20 Correct 208 ms 1628 KB Output is correct
21 Correct 6 ms 1624 KB Output is correct
22 Correct 7 ms 1624 KB Output is correct
23 Correct 431 ms 1628 KB Output is correct
24 Incorrect 394 ms 1632 KB Output isn't correct
25 Halted 0 ms 0 KB -