#include <bits/stdc++.h>
#pragma GCC optimize("unroll-loops")
#pragma GCC optimize("Ofast")
#define int long long
using namespace std;
const int M = 300 + 11;
const int X = M * M;
const int INF = 1LL << 60;
int a[M * 2];
int s[M * 2];
int dp[M * 2][X];
int norm(int x, int m){
if(x >= 0) return x;
return (x % m + m) % m;
}
int32_t main(){
int m, L; cin >> m >> L;
for(int i = 0; i <= m * 2; i++) cin >> a[i];
int ans = a[m];
for(int i = m + 1; i <= m * 2; i++) s[i] = min(L, s[i - 1] + (i - m) * a[i]);
for(int i = m; i <= m * 2; i++)
fill(dp[i], dp[i] + X, -INF);
dp[m][0] = 0;
for(int i = m + 1; i <= m * 2; i++){
for(int j = 0; j <= m * (i - 1 - m); j++){
int left = norm(s[i] - s[i - 1] + j - a[i] * (i - m), i - m);
int right = min(s[i] + j - s[i - 1], m * (i - m));
int inc = i - m;
int delta = ((s[i] - left) - (s[i - 1] - j)) / (i - m);
for(int k = left; k <= right; k += inc){
dp[i][k] = max(dp[i][k], dp[i - 1][j] + delta);
delta--;
}
}
}
if(s[m * 2] < L || L < 0){
cout << "impossible" << endl;
return 0;
}
if(dp[m * 2][0] < 0){
cout << "impossible" << endl;
}else{
cout << ans + dp[m * 2][0] << endl;
}
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
2516 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
2516 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
4 ms |
8596 KB |
Output is correct |
2 |
Correct |
10 ms |
23892 KB |
Output is correct |
3 |
Correct |
9 ms |
23764 KB |
Output is correct |
4 |
Correct |
10 ms |
23764 KB |
Output is correct |
5 |
Correct |
10 ms |
23764 KB |
Output is correct |
6 |
Correct |
10 ms |
23760 KB |
Output is correct |
7 |
Correct |
9 ms |
23788 KB |
Output is correct |
8 |
Correct |
9 ms |
23764 KB |
Output is correct |
9 |
Correct |
9 ms |
23760 KB |
Output is correct |
10 |
Correct |
9 ms |
23764 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
4 ms |
8596 KB |
Output is correct |
2 |
Correct |
10 ms |
23892 KB |
Output is correct |
3 |
Correct |
9 ms |
23764 KB |
Output is correct |
4 |
Correct |
10 ms |
23764 KB |
Output is correct |
5 |
Correct |
10 ms |
23764 KB |
Output is correct |
6 |
Correct |
10 ms |
23760 KB |
Output is correct |
7 |
Correct |
9 ms |
23788 KB |
Output is correct |
8 |
Correct |
9 ms |
23764 KB |
Output is correct |
9 |
Correct |
9 ms |
23760 KB |
Output is correct |
10 |
Correct |
9 ms |
23764 KB |
Output is correct |
11 |
Incorrect |
1 ms |
2516 KB |
Output isn't correct |
12 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
4 ms |
8596 KB |
Output is correct |
2 |
Correct |
10 ms |
23892 KB |
Output is correct |
3 |
Correct |
9 ms |
23764 KB |
Output is correct |
4 |
Correct |
10 ms |
23764 KB |
Output is correct |
5 |
Correct |
10 ms |
23764 KB |
Output is correct |
6 |
Correct |
10 ms |
23760 KB |
Output is correct |
7 |
Correct |
9 ms |
23788 KB |
Output is correct |
8 |
Correct |
9 ms |
23764 KB |
Output is correct |
9 |
Correct |
9 ms |
23760 KB |
Output is correct |
10 |
Correct |
9 ms |
23764 KB |
Output is correct |
11 |
Correct |
3 ms |
8660 KB |
Output is correct |
12 |
Correct |
9 ms |
23764 KB |
Output is correct |
13 |
Correct |
9 ms |
23764 KB |
Output is correct |
14 |
Correct |
9 ms |
23684 KB |
Output is correct |
15 |
Correct |
10 ms |
23772 KB |
Output is correct |
16 |
Correct |
10 ms |
23724 KB |
Output is correct |
17 |
Correct |
9 ms |
23760 KB |
Output is correct |
18 |
Correct |
11 ms |
23764 KB |
Output is correct |
19 |
Correct |
9 ms |
23764 KB |
Output is correct |
20 |
Correct |
12 ms |
23768 KB |
Output is correct |
21 |
Correct |
14 ms |
38900 KB |
Output is correct |
22 |
Correct |
15 ms |
38864 KB |
Output is correct |
23 |
Correct |
16 ms |
38868 KB |
Output is correct |
24 |
Correct |
15 ms |
38896 KB |
Output is correct |
25 |
Correct |
16 ms |
38872 KB |
Output is correct |
26 |
Correct |
18 ms |
38936 KB |
Output is correct |
27 |
Correct |
17 ms |
38868 KB |
Output is correct |
28 |
Correct |
19 ms |
38868 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
2516 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
4 ms |
8596 KB |
Output is correct |
2 |
Correct |
10 ms |
23892 KB |
Output is correct |
3 |
Correct |
9 ms |
23764 KB |
Output is correct |
4 |
Correct |
10 ms |
23764 KB |
Output is correct |
5 |
Correct |
10 ms |
23764 KB |
Output is correct |
6 |
Correct |
10 ms |
23760 KB |
Output is correct |
7 |
Correct |
9 ms |
23788 KB |
Output is correct |
8 |
Correct |
9 ms |
23764 KB |
Output is correct |
9 |
Correct |
9 ms |
23760 KB |
Output is correct |
10 |
Correct |
9 ms |
23764 KB |
Output is correct |
11 |
Correct |
3 ms |
8660 KB |
Output is correct |
12 |
Correct |
9 ms |
23764 KB |
Output is correct |
13 |
Correct |
9 ms |
23764 KB |
Output is correct |
14 |
Correct |
9 ms |
23684 KB |
Output is correct |
15 |
Correct |
10 ms |
23772 KB |
Output is correct |
16 |
Correct |
10 ms |
23724 KB |
Output is correct |
17 |
Correct |
9 ms |
23760 KB |
Output is correct |
18 |
Correct |
11 ms |
23764 KB |
Output is correct |
19 |
Correct |
9 ms |
23764 KB |
Output is correct |
20 |
Correct |
12 ms |
23768 KB |
Output is correct |
21 |
Correct |
14 ms |
38900 KB |
Output is correct |
22 |
Correct |
15 ms |
38864 KB |
Output is correct |
23 |
Correct |
16 ms |
38868 KB |
Output is correct |
24 |
Correct |
15 ms |
38896 KB |
Output is correct |
25 |
Correct |
16 ms |
38872 KB |
Output is correct |
26 |
Correct |
18 ms |
38936 KB |
Output is correct |
27 |
Correct |
17 ms |
38868 KB |
Output is correct |
28 |
Correct |
19 ms |
38868 KB |
Output is correct |
29 |
Correct |
4 ms |
8560 KB |
Output is correct |
30 |
Correct |
10 ms |
23764 KB |
Output is correct |
31 |
Correct |
10 ms |
23784 KB |
Output is correct |
32 |
Correct |
9 ms |
23764 KB |
Output is correct |
33 |
Correct |
9 ms |
23764 KB |
Output is correct |
34 |
Correct |
11 ms |
23892 KB |
Output is correct |
35 |
Correct |
9 ms |
23764 KB |
Output is correct |
36 |
Correct |
10 ms |
23744 KB |
Output is correct |
37 |
Correct |
9 ms |
23688 KB |
Output is correct |
38 |
Correct |
9 ms |
23768 KB |
Output is correct |
39 |
Correct |
15 ms |
38904 KB |
Output is correct |
40 |
Correct |
18 ms |
38916 KB |
Output is correct |
41 |
Correct |
16 ms |
38856 KB |
Output is correct |
42 |
Correct |
16 ms |
38868 KB |
Output is correct |
43 |
Correct |
17 ms |
38868 KB |
Output is correct |
44 |
Correct |
17 ms |
38824 KB |
Output is correct |
45 |
Correct |
17 ms |
38860 KB |
Output is correct |
46 |
Correct |
16 ms |
38868 KB |
Output is correct |
47 |
Correct |
32 ms |
76760 KB |
Output is correct |
48 |
Correct |
32 ms |
76756 KB |
Output is correct |
49 |
Correct |
50 ms |
76820 KB |
Output is correct |
50 |
Correct |
43 ms |
76748 KB |
Output is correct |
51 |
Correct |
50 ms |
76740 KB |
Output is correct |
52 |
Correct |
54 ms |
76772 KB |
Output is correct |
53 |
Correct |
48 ms |
76748 KB |
Output is correct |
54 |
Correct |
42 ms |
76680 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
2516 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
4 ms |
8596 KB |
Output is correct |
2 |
Correct |
10 ms |
23892 KB |
Output is correct |
3 |
Correct |
9 ms |
23764 KB |
Output is correct |
4 |
Correct |
10 ms |
23764 KB |
Output is correct |
5 |
Correct |
10 ms |
23764 KB |
Output is correct |
6 |
Correct |
10 ms |
23760 KB |
Output is correct |
7 |
Correct |
9 ms |
23788 KB |
Output is correct |
8 |
Correct |
9 ms |
23764 KB |
Output is correct |
9 |
Correct |
9 ms |
23760 KB |
Output is correct |
10 |
Correct |
9 ms |
23764 KB |
Output is correct |
11 |
Correct |
3 ms |
8660 KB |
Output is correct |
12 |
Correct |
9 ms |
23764 KB |
Output is correct |
13 |
Correct |
9 ms |
23764 KB |
Output is correct |
14 |
Correct |
9 ms |
23684 KB |
Output is correct |
15 |
Correct |
10 ms |
23772 KB |
Output is correct |
16 |
Correct |
10 ms |
23724 KB |
Output is correct |
17 |
Correct |
9 ms |
23760 KB |
Output is correct |
18 |
Correct |
11 ms |
23764 KB |
Output is correct |
19 |
Correct |
9 ms |
23764 KB |
Output is correct |
20 |
Correct |
12 ms |
23768 KB |
Output is correct |
21 |
Correct |
14 ms |
38900 KB |
Output is correct |
22 |
Correct |
15 ms |
38864 KB |
Output is correct |
23 |
Correct |
16 ms |
38868 KB |
Output is correct |
24 |
Correct |
15 ms |
38896 KB |
Output is correct |
25 |
Correct |
16 ms |
38872 KB |
Output is correct |
26 |
Correct |
18 ms |
38936 KB |
Output is correct |
27 |
Correct |
17 ms |
38868 KB |
Output is correct |
28 |
Correct |
19 ms |
38868 KB |
Output is correct |
29 |
Correct |
4 ms |
8560 KB |
Output is correct |
30 |
Correct |
10 ms |
23764 KB |
Output is correct |
31 |
Correct |
10 ms |
23784 KB |
Output is correct |
32 |
Correct |
9 ms |
23764 KB |
Output is correct |
33 |
Correct |
9 ms |
23764 KB |
Output is correct |
34 |
Correct |
11 ms |
23892 KB |
Output is correct |
35 |
Correct |
9 ms |
23764 KB |
Output is correct |
36 |
Correct |
10 ms |
23744 KB |
Output is correct |
37 |
Correct |
9 ms |
23688 KB |
Output is correct |
38 |
Correct |
9 ms |
23768 KB |
Output is correct |
39 |
Correct |
15 ms |
38904 KB |
Output is correct |
40 |
Correct |
18 ms |
38916 KB |
Output is correct |
41 |
Correct |
16 ms |
38856 KB |
Output is correct |
42 |
Correct |
16 ms |
38868 KB |
Output is correct |
43 |
Correct |
17 ms |
38868 KB |
Output is correct |
44 |
Correct |
17 ms |
38824 KB |
Output is correct |
45 |
Correct |
17 ms |
38860 KB |
Output is correct |
46 |
Correct |
16 ms |
38868 KB |
Output is correct |
47 |
Correct |
32 ms |
76760 KB |
Output is correct |
48 |
Correct |
32 ms |
76756 KB |
Output is correct |
49 |
Correct |
50 ms |
76820 KB |
Output is correct |
50 |
Correct |
43 ms |
76748 KB |
Output is correct |
51 |
Correct |
50 ms |
76740 KB |
Output is correct |
52 |
Correct |
54 ms |
76772 KB |
Output is correct |
53 |
Correct |
48 ms |
76748 KB |
Output is correct |
54 |
Correct |
42 ms |
76680 KB |
Output is correct |
55 |
Correct |
3 ms |
8532 KB |
Output is correct |
56 |
Correct |
10 ms |
23764 KB |
Output is correct |
57 |
Correct |
10 ms |
23764 KB |
Output is correct |
58 |
Correct |
10 ms |
23824 KB |
Output is correct |
59 |
Correct |
10 ms |
23764 KB |
Output is correct |
60 |
Correct |
10 ms |
23748 KB |
Output is correct |
61 |
Correct |
9 ms |
23764 KB |
Output is correct |
62 |
Correct |
9 ms |
23764 KB |
Output is correct |
63 |
Correct |
10 ms |
23764 KB |
Output is correct |
64 |
Correct |
10 ms |
23764 KB |
Output is correct |
65 |
Correct |
15 ms |
38868 KB |
Output is correct |
66 |
Correct |
16 ms |
38868 KB |
Output is correct |
67 |
Correct |
17 ms |
38880 KB |
Output is correct |
68 |
Correct |
16 ms |
38860 KB |
Output is correct |
69 |
Correct |
16 ms |
38868 KB |
Output is correct |
70 |
Correct |
18 ms |
38932 KB |
Output is correct |
71 |
Correct |
18 ms |
38892 KB |
Output is correct |
72 |
Correct |
16 ms |
38868 KB |
Output is correct |
73 |
Correct |
32 ms |
76684 KB |
Output is correct |
74 |
Correct |
32 ms |
76688 KB |
Output is correct |
75 |
Correct |
56 ms |
76852 KB |
Output is correct |
76 |
Correct |
40 ms |
76728 KB |
Output is correct |
77 |
Correct |
51 ms |
76768 KB |
Output is correct |
78 |
Correct |
53 ms |
76772 KB |
Output is correct |
79 |
Correct |
50 ms |
76684 KB |
Output is correct |
80 |
Correct |
43 ms |
76716 KB |
Output is correct |
81 |
Correct |
1609 ms |
228196 KB |
Output is correct |
82 |
Correct |
748 ms |
228200 KB |
Output is correct |
83 |
Correct |
1463 ms |
228204 KB |
Output is correct |
84 |
Correct |
2025 ms |
228200 KB |
Output is correct |
85 |
Correct |
177 ms |
228148 KB |
Output is correct |
86 |
Correct |
167 ms |
228196 KB |
Output is correct |
87 |
Correct |
1145 ms |
228200 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
2516 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |