#include <bits/stdc++.h>
#pragma GCC optimize ("Ofast")
#pragma GCC target ("avx2")
using namespace std;
using ll = long long;
using ii = pair<int, int>;
using vi = vector<int>;
#define pb push_back
#define pp pop_back
#define ff first
#define ss second
#define lb lower_bound
#define int ll
const int oo = 1e9 + 7;
int N, M, A[1000];
int DP[105][250005];
int solve(int i, int state) {
if(i == 2 * N + 1) {
if(state == M) return 0;
return -oo;
}
if(DP[i][state] != -1)
return DP[i][state];
int best = -oo;
for(int l = 0; l <= A[i]; l++) {
int calc = solve(i + 1, state + l * (i - N));
if(calc != -oo)
best = max(best,
l + solve(i + 1, state + l * (i - N)));
}
return DP[i][state] = best;
}
int32_t main() {
ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
cin >> N >> M; memset(DP, -1, sizeof DP);
for(int l = 0; l <= 2 * N; l++) cin >> A[l];
int ans = solve(0, 0);
if(ans == -oo) cout << "impossible\n";
else cout << ans << "\n";
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
82 ms |
205704 KB |
Output is correct |
2 |
Correct |
85 ms |
205712 KB |
Output is correct |
3 |
Correct |
95 ms |
205696 KB |
Output is correct |
4 |
Correct |
98 ms |
205760 KB |
Output is correct |
5 |
Correct |
309 ms |
205796 KB |
Output is correct |
6 |
Correct |
542 ms |
205792 KB |
Output is correct |
7 |
Correct |
148 ms |
205680 KB |
Output is correct |
8 |
Correct |
408 ms |
205796 KB |
Output is correct |
9 |
Correct |
970 ms |
205800 KB |
Output is correct |
10 |
Correct |
80 ms |
205732 KB |
Output is correct |
11 |
Correct |
101 ms |
205788 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
82 ms |
205704 KB |
Output is correct |
2 |
Correct |
85 ms |
205712 KB |
Output is correct |
3 |
Correct |
95 ms |
205696 KB |
Output is correct |
4 |
Correct |
98 ms |
205760 KB |
Output is correct |
5 |
Correct |
309 ms |
205796 KB |
Output is correct |
6 |
Correct |
542 ms |
205792 KB |
Output is correct |
7 |
Correct |
148 ms |
205680 KB |
Output is correct |
8 |
Correct |
408 ms |
205796 KB |
Output is correct |
9 |
Correct |
970 ms |
205800 KB |
Output is correct |
10 |
Correct |
80 ms |
205732 KB |
Output is correct |
11 |
Correct |
101 ms |
205788 KB |
Output is correct |
12 |
Correct |
101 ms |
205732 KB |
Output is correct |
13 |
Correct |
82 ms |
205764 KB |
Output is correct |
14 |
Correct |
81 ms |
205748 KB |
Output is correct |
15 |
Correct |
77 ms |
205728 KB |
Output is correct |
16 |
Correct |
261 ms |
205800 KB |
Output is correct |
17 |
Correct |
467 ms |
205800 KB |
Output is correct |
18 |
Correct |
120 ms |
205708 KB |
Output is correct |
19 |
Correct |
350 ms |
205716 KB |
Output is correct |
20 |
Correct |
778 ms |
205696 KB |
Output is correct |
21 |
Correct |
77 ms |
205792 KB |
Output is correct |
22 |
Correct |
78 ms |
205716 KB |
Output is correct |
23 |
Runtime error |
262 ms |
417188 KB |
Execution killed with signal 11 |
24 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
78 ms |
205700 KB |
Output is correct |
2 |
Runtime error |
498 ms |
417248 KB |
Execution killed with signal 11 |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
78 ms |
205700 KB |
Output is correct |
2 |
Runtime error |
498 ms |
417248 KB |
Execution killed with signal 11 |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
78 ms |
205700 KB |
Output is correct |
2 |
Runtime error |
498 ms |
417248 KB |
Execution killed with signal 11 |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
82 ms |
205704 KB |
Output is correct |
2 |
Correct |
85 ms |
205712 KB |
Output is correct |
3 |
Correct |
95 ms |
205696 KB |
Output is correct |
4 |
Correct |
98 ms |
205760 KB |
Output is correct |
5 |
Correct |
309 ms |
205796 KB |
Output is correct |
6 |
Correct |
542 ms |
205792 KB |
Output is correct |
7 |
Correct |
148 ms |
205680 KB |
Output is correct |
8 |
Correct |
408 ms |
205796 KB |
Output is correct |
9 |
Correct |
970 ms |
205800 KB |
Output is correct |
10 |
Correct |
80 ms |
205732 KB |
Output is correct |
11 |
Correct |
101 ms |
205788 KB |
Output is correct |
12 |
Correct |
78 ms |
205700 KB |
Output is correct |
13 |
Runtime error |
498 ms |
417248 KB |
Execution killed with signal 11 |
14 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
78 ms |
205700 KB |
Output is correct |
2 |
Runtime error |
498 ms |
417248 KB |
Execution killed with signal 11 |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
82 ms |
205704 KB |
Output is correct |
2 |
Correct |
85 ms |
205712 KB |
Output is correct |
3 |
Correct |
95 ms |
205696 KB |
Output is correct |
4 |
Correct |
98 ms |
205760 KB |
Output is correct |
5 |
Correct |
309 ms |
205796 KB |
Output is correct |
6 |
Correct |
542 ms |
205792 KB |
Output is correct |
7 |
Correct |
148 ms |
205680 KB |
Output is correct |
8 |
Correct |
408 ms |
205796 KB |
Output is correct |
9 |
Correct |
970 ms |
205800 KB |
Output is correct |
10 |
Correct |
80 ms |
205732 KB |
Output is correct |
11 |
Correct |
101 ms |
205788 KB |
Output is correct |
12 |
Correct |
101 ms |
205732 KB |
Output is correct |
13 |
Correct |
82 ms |
205764 KB |
Output is correct |
14 |
Correct |
81 ms |
205748 KB |
Output is correct |
15 |
Correct |
77 ms |
205728 KB |
Output is correct |
16 |
Correct |
261 ms |
205800 KB |
Output is correct |
17 |
Correct |
467 ms |
205800 KB |
Output is correct |
18 |
Correct |
120 ms |
205708 KB |
Output is correct |
19 |
Correct |
350 ms |
205716 KB |
Output is correct |
20 |
Correct |
778 ms |
205696 KB |
Output is correct |
21 |
Correct |
77 ms |
205792 KB |
Output is correct |
22 |
Correct |
78 ms |
205716 KB |
Output is correct |
23 |
Runtime error |
262 ms |
417188 KB |
Execution killed with signal 11 |
24 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
78 ms |
205700 KB |
Output is correct |
2 |
Runtime error |
498 ms |
417248 KB |
Execution killed with signal 11 |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
82 ms |
205704 KB |
Output is correct |
2 |
Correct |
85 ms |
205712 KB |
Output is correct |
3 |
Correct |
95 ms |
205696 KB |
Output is correct |
4 |
Correct |
98 ms |
205760 KB |
Output is correct |
5 |
Correct |
309 ms |
205796 KB |
Output is correct |
6 |
Correct |
542 ms |
205792 KB |
Output is correct |
7 |
Correct |
148 ms |
205680 KB |
Output is correct |
8 |
Correct |
408 ms |
205796 KB |
Output is correct |
9 |
Correct |
970 ms |
205800 KB |
Output is correct |
10 |
Correct |
80 ms |
205732 KB |
Output is correct |
11 |
Correct |
101 ms |
205788 KB |
Output is correct |
12 |
Correct |
101 ms |
205732 KB |
Output is correct |
13 |
Correct |
82 ms |
205764 KB |
Output is correct |
14 |
Correct |
81 ms |
205748 KB |
Output is correct |
15 |
Correct |
77 ms |
205728 KB |
Output is correct |
16 |
Correct |
261 ms |
205800 KB |
Output is correct |
17 |
Correct |
467 ms |
205800 KB |
Output is correct |
18 |
Correct |
120 ms |
205708 KB |
Output is correct |
19 |
Correct |
350 ms |
205716 KB |
Output is correct |
20 |
Correct |
778 ms |
205696 KB |
Output is correct |
21 |
Correct |
77 ms |
205792 KB |
Output is correct |
22 |
Correct |
78 ms |
205716 KB |
Output is correct |
23 |
Runtime error |
262 ms |
417188 KB |
Execution killed with signal 11 |
24 |
Halted |
0 ms |
0 KB |
- |