#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const int maxn = 2000 + 10;
const ll inf = 1e18;
bool g[maxn][maxn], cp[maxn][maxn];
ll a[maxn], dp[110][110];
int pd[maxn];
int shortest_path(int n, int A, int B){
if (A == 1){
for (int i = 1; i <= n; i++)
pd[i] = n + 1;
pd[0] = 0;
for (int i = 1; i <= n; i++)
for (int j = 0; j < i; j++)
if (g[j][i])
pd[i] = min(pd[i], pd[j] + 1);
return pd[n] <= B;
}
memset(dp, 0, sizeof dp);
dp[0][0] = 1;
for (int i = 1; i <= n; i++)
for (int j = 1; j <= B; j++)
for (int k = i - 1; k >= 0; k--)
dp[i][j] |= dp[k][j - 1];
int ret = 0;
for (int i = A; i <= B; i++)
ret |= dp[n][i];
return ret;
}
int main(){
ios_base::sync_with_stdio(false);
int n, A, B;
cin >> n >> A >> B;
for (int i = 1; i <= n; i++){
cin >> a[i];
a[i] += a[i - 1];
}
for (int i = 0; i <= n; i++)
for (int j = i + 1; j <= n; j++)
g[i][j] = 1;
ll untilnow = 0;
for (int i = 60; i >= 0; i--){
for (int j = 0; j <= n; j++)
for (int k = 0; k <= n; k++)
cp[j][k] = g[j][k];
for (int j = 0; j <= n; j++)
for (int k = j + 1; k <= n; k++)
if ((a[k] - a[j]) & (1ll << i))
g[j][k] = 0;
if (!shortest_path(n, A, B)){
untilnow += (1ll << i);
for (int j = 0; j <= n; j++)
for (int k = 0; k <= n; k++)
g[j][k] = cp[j][k];
}
}
cout << untilnow << endl;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
384 KB |
Output is correct |
2 |
Correct |
2 ms |
384 KB |
Output is correct |
3 |
Correct |
2 ms |
384 KB |
Output is correct |
4 |
Correct |
2 ms |
384 KB |
Output is correct |
5 |
Correct |
2 ms |
384 KB |
Output is correct |
6 |
Correct |
2 ms |
384 KB |
Output is correct |
7 |
Correct |
2 ms |
384 KB |
Output is correct |
8 |
Correct |
2 ms |
512 KB |
Output is correct |
9 |
Correct |
2 ms |
384 KB |
Output is correct |
10 |
Correct |
3 ms |
384 KB |
Output is correct |
11 |
Correct |
3 ms |
384 KB |
Output is correct |
12 |
Correct |
2 ms |
384 KB |
Output is correct |
13 |
Correct |
2 ms |
384 KB |
Output is correct |
14 |
Incorrect |
3 ms |
512 KB |
Output isn't correct |
15 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
384 KB |
Output is correct |
2 |
Correct |
3 ms |
384 KB |
Output is correct |
3 |
Correct |
2 ms |
384 KB |
Output is correct |
4 |
Correct |
2 ms |
384 KB |
Output is correct |
5 |
Correct |
2 ms |
384 KB |
Output is correct |
6 |
Correct |
2 ms |
384 KB |
Output is correct |
7 |
Correct |
4 ms |
460 KB |
Output is correct |
8 |
Correct |
3 ms |
512 KB |
Output is correct |
9 |
Correct |
3 ms |
384 KB |
Output is correct |
10 |
Correct |
3 ms |
512 KB |
Output is correct |
11 |
Correct |
2 ms |
512 KB |
Output is correct |
12 |
Correct |
27 ms |
384 KB |
Output is correct |
13 |
Correct |
3 ms |
256 KB |
Output is correct |
14 |
Incorrect |
3 ms |
512 KB |
Output isn't correct |
15 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
384 KB |
Output is correct |
2 |
Correct |
3 ms |
384 KB |
Output is correct |
3 |
Correct |
2 ms |
384 KB |
Output is correct |
4 |
Correct |
2 ms |
384 KB |
Output is correct |
5 |
Correct |
2 ms |
384 KB |
Output is correct |
6 |
Correct |
2 ms |
384 KB |
Output is correct |
7 |
Correct |
2 ms |
384 KB |
Output is correct |
8 |
Correct |
3 ms |
512 KB |
Output is correct |
9 |
Correct |
2 ms |
384 KB |
Output is correct |
10 |
Correct |
2 ms |
512 KB |
Output is correct |
11 |
Correct |
3 ms |
480 KB |
Output is correct |
12 |
Correct |
2 ms |
512 KB |
Output is correct |
13 |
Correct |
2 ms |
512 KB |
Output is correct |
14 |
Correct |
2 ms |
384 KB |
Output is correct |
15 |
Correct |
3 ms |
512 KB |
Output is correct |
16 |
Correct |
2 ms |
512 KB |
Output is correct |
17 |
Correct |
3 ms |
512 KB |
Output is correct |
18 |
Correct |
2 ms |
640 KB |
Output is correct |
19 |
Correct |
3 ms |
512 KB |
Output is correct |
20 |
Correct |
3 ms |
512 KB |
Output is correct |
21 |
Correct |
3 ms |
512 KB |
Output is correct |
22 |
Correct |
3 ms |
512 KB |
Output is correct |
23 |
Correct |
3 ms |
512 KB |
Output is correct |
24 |
Correct |
3 ms |
512 KB |
Output is correct |
25 |
Correct |
3 ms |
640 KB |
Output is correct |
26 |
Correct |
4 ms |
640 KB |
Output is correct |
27 |
Correct |
4 ms |
640 KB |
Output is correct |
28 |
Correct |
4 ms |
768 KB |
Output is correct |
29 |
Correct |
4 ms |
768 KB |
Output is correct |
30 |
Correct |
4 ms |
768 KB |
Output is correct |
31 |
Correct |
5 ms |
768 KB |
Output is correct |
32 |
Correct |
5 ms |
768 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
384 KB |
Output is correct |
2 |
Correct |
2 ms |
384 KB |
Output is correct |
3 |
Correct |
2 ms |
384 KB |
Output is correct |
4 |
Correct |
2 ms |
384 KB |
Output is correct |
5 |
Correct |
2 ms |
384 KB |
Output is correct |
6 |
Correct |
2 ms |
384 KB |
Output is correct |
7 |
Correct |
2 ms |
384 KB |
Output is correct |
8 |
Correct |
2 ms |
384 KB |
Output is correct |
9 |
Correct |
2 ms |
384 KB |
Output is correct |
10 |
Correct |
2 ms |
512 KB |
Output is correct |
11 |
Correct |
2 ms |
512 KB |
Output is correct |
12 |
Correct |
2 ms |
384 KB |
Output is correct |
13 |
Correct |
3 ms |
384 KB |
Output is correct |
14 |
Incorrect |
2 ms |
512 KB |
Output isn't correct |
15 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
384 KB |
Output is correct |
2 |
Correct |
3 ms |
384 KB |
Output is correct |
3 |
Correct |
2 ms |
384 KB |
Output is correct |
4 |
Correct |
3 ms |
428 KB |
Output is correct |
5 |
Correct |
2 ms |
384 KB |
Output is correct |
6 |
Correct |
2 ms |
384 KB |
Output is correct |
7 |
Correct |
2 ms |
384 KB |
Output is correct |
8 |
Correct |
3 ms |
384 KB |
Output is correct |
9 |
Correct |
2 ms |
384 KB |
Output is correct |
10 |
Correct |
3 ms |
384 KB |
Output is correct |
11 |
Correct |
3 ms |
384 KB |
Output is correct |
12 |
Correct |
3 ms |
556 KB |
Output is correct |
13 |
Correct |
3 ms |
384 KB |
Output is correct |
14 |
Correct |
2 ms |
300 KB |
Output is correct |
15 |
Correct |
2 ms |
384 KB |
Output is correct |
16 |
Correct |
7 ms |
384 KB |
Output is correct |
17 |
Correct |
2 ms |
384 KB |
Output is correct |
18 |
Correct |
2 ms |
384 KB |
Output is correct |
19 |
Correct |
2 ms |
384 KB |
Output is correct |
20 |
Correct |
2 ms |
384 KB |
Output is correct |
21 |
Correct |
2 ms |
384 KB |
Output is correct |
22 |
Correct |
2 ms |
384 KB |
Output is correct |
23 |
Correct |
2 ms |
512 KB |
Output is correct |
24 |
Correct |
2 ms |
384 KB |
Output is correct |
25 |
Correct |
2 ms |
384 KB |
Output is correct |
26 |
Correct |
3 ms |
512 KB |
Output is correct |
27 |
Correct |
3 ms |
512 KB |
Output is correct |
28 |
Correct |
3 ms |
512 KB |
Output is correct |
29 |
Correct |
3 ms |
512 KB |
Output is correct |
30 |
Correct |
3 ms |
512 KB |
Output is correct |
31 |
Correct |
3 ms |
512 KB |
Output is correct |
32 |
Correct |
4 ms |
640 KB |
Output is correct |
33 |
Correct |
3 ms |
512 KB |
Output is correct |
34 |
Correct |
3 ms |
512 KB |
Output is correct |
35 |
Correct |
4 ms |
640 KB |
Output is correct |
36 |
Correct |
4 ms |
640 KB |
Output is correct |
37 |
Correct |
5 ms |
640 KB |
Output is correct |
38 |
Correct |
5 ms |
768 KB |
Output is correct |
39 |
Correct |
4 ms |
768 KB |
Output is correct |
40 |
Correct |
4 ms |
768 KB |
Output is correct |
41 |
Correct |
4 ms |
768 KB |
Output is correct |
42 |
Correct |
4 ms |
768 KB |
Output is correct |
43 |
Correct |
4 ms |
640 KB |
Output is correct |
44 |
Correct |
4 ms |
640 KB |
Output is correct |
45 |
Correct |
4 ms |
640 KB |
Output is correct |
46 |
Correct |
5 ms |
768 KB |
Output is correct |
47 |
Correct |
4 ms |
768 KB |
Output is correct |
48 |
Correct |
3 ms |
768 KB |
Output is correct |
49 |
Correct |
5 ms |
768 KB |
Output is correct |
50 |
Correct |
4 ms |
768 KB |
Output is correct |
51 |
Correct |
6 ms |
768 KB |
Output is correct |
52 |
Correct |
69 ms |
2560 KB |
Output is correct |
53 |
Correct |
126 ms |
3452 KB |
Output is correct |
54 |
Correct |
195 ms |
4344 KB |
Output is correct |
55 |
Correct |
239 ms |
4352 KB |
Output is correct |
56 |
Correct |
895 ms |
8192 KB |
Output is correct |
57 |
Correct |
927 ms |
8284 KB |
Output is correct |
58 |
Correct |
724 ms |
8312 KB |
Output is correct |
59 |
Correct |
624 ms |
8292 KB |
Output is correct |
60 |
Correct |
595 ms |
8316 KB |
Output is correct |
61 |
Correct |
4 ms |
768 KB |
Output is correct |
62 |
Correct |
94 ms |
3328 KB |
Output is correct |
63 |
Correct |
209 ms |
4344 KB |
Output is correct |
64 |
Correct |
185 ms |
4344 KB |
Output is correct |
65 |
Correct |
407 ms |
6008 KB |
Output is correct |
66 |
Correct |
522 ms |
7416 KB |
Output is correct |
67 |
Correct |
715 ms |
8356 KB |
Output is correct |
68 |
Correct |
882 ms |
8316 KB |
Output is correct |
69 |
Correct |
794 ms |
8284 KB |
Output is correct |