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Submission #853472

# Submission time Handle Problem Language Result Execution time Memory
853472 2023-09-24T12:02:07 Z vjudge1 Uplifting Excursion (BOI22_vault) C++17
5 / 100
 5000 ms 2392 KB 
#include <bits/stdc++.h>

using namespace std;

#define endl "\n"

void solve(){
	long long M, L; cin >> M >> L;
	vector<int> val(2 * M + 1);
	for(int i = -M; i <= M; i++){
		val[i + M] = i;
	}
	vector<long long> A(2 * M + 1);
	for(auto &i : A) cin >> i;
	if(L < 0){
		L *= -1;
		for(int i = 0; i < M; i++){
			swap(A[i], A[2 * M - i]);
		}
	}
	long long max_sum = 0;
	for(int i = M; i <= 2 * M; i++){
		max_sum += val[i] * A[i];
	}
	if(max_sum < L){
		cout << "impossible" << endl;
		return;
	}
	vector<int> ans(max_sum + 1, -1);
	ans[0] = 0;
	for(int i = M + 1; i <= 2 * M; i++){
		for(int _ = 0; _ < A[i]; _++){
			for(int w = max_sum; w >= 0; w--){
				if(ans[w] != -1) ans[w + val[i]] = max(ans[w + val[i]], ans[w] + 1);
			}
		}
	}
	for(int i = 0; i < M; i++){
		for(int _ = 0; _ < A[i]; _++){
			for(int w = -val[i]; w <= max_sum; w++){
				if(ans[w] != -1) ans[w + val[i]] = max(ans[w + val[i]], ans[w] + 1);
			}
		}
	}
	if(ans[L] == -1) cout << "impossible" << endl;
	else cout << ans[L] + A[M] << endl;
}

int main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0);

	solve();
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 85 ms 344 KB Output is correct
7 Correct 12 ms 348 KB Output is correct
8 Correct 72 ms 552 KB Output is correct
9 Correct 271 ms 600 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct

Subtask #2
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 85 ms 344 KB Output is correct
7 Correct 12 ms 348 KB Output is correct
8 Correct 72 ms 552 KB Output is correct
9 Correct 271 ms 600 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 0 ms 344 KB Output is correct
17 Correct 87 ms 600 KB Output is correct
18 Correct 12 ms 344 KB Output is correct
19 Correct 74 ms 592 KB Output is correct
20 Correct 265 ms 600 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 2476 ms 1368 KB Output is correct
25 Correct 320 ms 600 KB Output is correct
26 Execution timed out 5031 ms 2392 KB Time limit exceeded
27 Halted 0 ms 0 KB -

Subtask #3-1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Runtime error 2 ms 600 KB Execution killed with signal 6
3 Halted 0 ms 0 KB -

Subtask #3-2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Runtime error 2 ms 600 KB Execution killed with signal 6
3 Halted 0 ms 0 KB -

Subtask #4-1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Runtime error 2 ms 600 KB Execution killed with signal 6
3 Halted 0 ms 0 KB -

Subtask #4-2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 85 ms 344 KB Output is correct
7 Correct 12 ms 348 KB Output is correct
8 Correct 72 ms 552 KB Output is correct
9 Correct 271 ms 600 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Runtime error 2 ms 600 KB Execution killed with signal 6
14 Halted 0 ms 0 KB -

Subtask #5-1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Runtime error 2 ms 600 KB Execution killed with signal 6
3 Halted 0 ms 0 KB -

Subtask #5-2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 85 ms 344 KB Output is correct
7 Correct 12 ms 348 KB Output is correct
8 Correct 72 ms 552 KB Output is correct
9 Correct 271 ms 600 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 0 ms 344 KB Output is correct
17 Correct 87 ms 600 KB Output is correct
18 Correct 12 ms 344 KB Output is correct
19 Correct 74 ms 592 KB Output is correct
20 Correct 265 ms 600 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 2476 ms 1368 KB Output is correct
25 Correct 320 ms 600 KB Output is correct
26 Execution timed out 5031 ms 2392 KB Time limit exceeded
27 Halted 0 ms 0 KB -

Subtask #6-1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Runtime error 2 ms 600 KB Execution killed with signal 6
3 Halted 0 ms 0 KB -

Subtask #6-2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 85 ms 344 KB Output is correct
7 Correct 12 ms 348 KB Output is correct
8 Correct 72 ms 552 KB Output is correct
9 Correct 271 ms 600 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 0 ms 344 KB Output is correct
17 Correct 87 ms 600 KB Output is correct
18 Correct 12 ms 344 KB Output is correct
19 Correct 74 ms 592 KB Output is correct
20 Correct 265 ms 600 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 2476 ms 1368 KB Output is correct
25 Correct 320 ms 600 KB Output is correct
26 Execution timed out 5031 ms 2392 KB Time limit exceeded
27 Halted 0 ms 0 KB -