#include <bits/stdc++.h>
using namespace std;
const int MAXN = 2005;
const int INF = 1e9;
int n, a, b;
long long A[MAXN];
bool dp[MAXN][MAXN];
int f[MAXN];
int main()
{
ios_base::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
cin >> n >> a >> b;
for(int i = 1; i <= n; i++)
{
cin >> A[i];
A[i] += A[i - 1];
}
if(n <= 100)
{
long long ans = 0;
for(int bit = 40; bit >= 0; bit--)
{
for(int i = 0; i <= n; i++)
{
for(int j = 0; j <= n; j++)
{
dp[i][j] = false;
}
}
dp[0][0] = true;
for(int i = 1; i <= n; i++)
{
for(int j = 1; j <= i; j++)
{
for(int k = 1; k <= i; k++)
{
long long zz = ((A[i] - A[k - 1]) >> bit) << bit;
dp[i][j] |= (dp[k - 1][j - 1] & ((zz & ans) == zz));
}
}
}
bool ok = false;
for(int i = a; i <= b; i++)
{
if(dp[n][i])
{
ok = true;
}
}
if(!ok)
{
ans |= (1ll << bit);
}
}
cout << ans << '\n';
}
else
{
long long ans = 0;
for(int bit = 40; bit >= 0; bit--)
{
for(int i = 1; i <= n; i++)
{
f[i] = INF;
}
for(int i = 1; i <= n; i++)
{
for(int j = i; j >= 1; j--)
{
long long zz = ((A[i] - A[j - 1]) >> bit) << bit;
if((zz & ans) == zz)
{
f[i] = min(f[i], f[j - 1] + 1);
}
}
}
if(f[n] > b)
{
ans |= (1ll << bit);
}
}
cout << ans << '\n';
}
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
332 KB |
Output is correct |
2 |
Correct |
0 ms |
332 KB |
Output is correct |
3 |
Correct |
0 ms |
204 KB |
Output is correct |
4 |
Correct |
0 ms |
332 KB |
Output is correct |
5 |
Correct |
0 ms |
332 KB |
Output is correct |
6 |
Correct |
0 ms |
332 KB |
Output is correct |
7 |
Correct |
1 ms |
332 KB |
Output is correct |
8 |
Correct |
1 ms |
332 KB |
Output is correct |
9 |
Correct |
1 ms |
332 KB |
Output is correct |
10 |
Correct |
1 ms |
332 KB |
Output is correct |
11 |
Correct |
1 ms |
332 KB |
Output is correct |
12 |
Correct |
1 ms |
332 KB |
Output is correct |
13 |
Correct |
0 ms |
332 KB |
Output is correct |
14 |
Correct |
0 ms |
332 KB |
Output is correct |
15 |
Correct |
0 ms |
332 KB |
Output is correct |
16 |
Correct |
0 ms |
332 KB |
Output is correct |
17 |
Correct |
0 ms |
332 KB |
Output is correct |
18 |
Correct |
1 ms |
332 KB |
Output is correct |
19 |
Correct |
1 ms |
332 KB |
Output is correct |
20 |
Correct |
0 ms |
332 KB |
Output is correct |
21 |
Correct |
1 ms |
332 KB |
Output is correct |
22 |
Correct |
1 ms |
332 KB |
Output is correct |
23 |
Correct |
1 ms |
332 KB |
Output is correct |
24 |
Correct |
1 ms |
332 KB |
Output is correct |
25 |
Correct |
1 ms |
332 KB |
Output is correct |
26 |
Correct |
1 ms |
332 KB |
Output is correct |
27 |
Correct |
1 ms |
332 KB |
Output is correct |
28 |
Correct |
0 ms |
332 KB |
Output is correct |
29 |
Correct |
0 ms |
332 KB |
Output is correct |
30 |
Correct |
1 ms |
332 KB |
Output is correct |
31 |
Correct |
1 ms |
332 KB |
Output is correct |
32 |
Correct |
1 ms |
332 KB |
Output is correct |
33 |
Correct |
1 ms |
332 KB |
Output is correct |
34 |
Correct |
1 ms |
332 KB |
Output is correct |
35 |
Correct |
1 ms |
332 KB |
Output is correct |
36 |
Correct |
1 ms |
332 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
0 ms |
204 KB |
Output is correct |
4 |
Correct |
0 ms |
332 KB |
Output is correct |
5 |
Correct |
0 ms |
332 KB |
Output is correct |
6 |
Correct |
1 ms |
332 KB |
Output is correct |
7 |
Correct |
1 ms |
332 KB |
Output is correct |
8 |
Correct |
0 ms |
332 KB |
Output is correct |
9 |
Correct |
1 ms |
332 KB |
Output is correct |
10 |
Correct |
0 ms |
332 KB |
Output is correct |
11 |
Correct |
1 ms |
332 KB |
Output is correct |
12 |
Correct |
0 ms |
332 KB |
Output is correct |
13 |
Correct |
1 ms |
332 KB |
Output is correct |
14 |
Correct |
0 ms |
332 KB |
Output is correct |
15 |
Correct |
1 ms |
332 KB |
Output is correct |
16 |
Correct |
0 ms |
332 KB |
Output is correct |
17 |
Correct |
0 ms |
332 KB |
Output is correct |
18 |
Correct |
0 ms |
332 KB |
Output is correct |
19 |
Correct |
1 ms |
332 KB |
Output is correct |
20 |
Correct |
1 ms |
336 KB |
Output is correct |
21 |
Correct |
1 ms |
336 KB |
Output is correct |
22 |
Correct |
1 ms |
332 KB |
Output is correct |
23 |
Correct |
1 ms |
332 KB |
Output is correct |
24 |
Correct |
1 ms |
332 KB |
Output is correct |
25 |
Correct |
1 ms |
332 KB |
Output is correct |
26 |
Correct |
1 ms |
332 KB |
Output is correct |
27 |
Correct |
1 ms |
332 KB |
Output is correct |
28 |
Correct |
1 ms |
332 KB |
Output is correct |
29 |
Correct |
2 ms |
332 KB |
Output is correct |
30 |
Correct |
2 ms |
332 KB |
Output is correct |
31 |
Correct |
3 ms |
332 KB |
Output is correct |
32 |
Correct |
3 ms |
332 KB |
Output is correct |
33 |
Correct |
3 ms |
332 KB |
Output is correct |
34 |
Correct |
3 ms |
332 KB |
Output is correct |
35 |
Correct |
3 ms |
332 KB |
Output is correct |
36 |
Correct |
3 ms |
336 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
332 KB |
Output is correct |
2 |
Correct |
0 ms |
332 KB |
Output is correct |
3 |
Correct |
0 ms |
208 KB |
Output is correct |
4 |
Correct |
0 ms |
344 KB |
Output is correct |
5 |
Correct |
1 ms |
332 KB |
Output is correct |
6 |
Correct |
1 ms |
332 KB |
Output is correct |
7 |
Correct |
0 ms |
332 KB |
Output is correct |
8 |
Correct |
1 ms |
332 KB |
Output is correct |
9 |
Correct |
1 ms |
332 KB |
Output is correct |
10 |
Correct |
1 ms |
332 KB |
Output is correct |
11 |
Correct |
1 ms |
332 KB |
Output is correct |
12 |
Correct |
1 ms |
332 KB |
Output is correct |
13 |
Correct |
1 ms |
332 KB |
Output is correct |
14 |
Correct |
1 ms |
332 KB |
Output is correct |
15 |
Correct |
1 ms |
332 KB |
Output is correct |
16 |
Correct |
2 ms |
332 KB |
Output is correct |
17 |
Correct |
2 ms |
332 KB |
Output is correct |
18 |
Correct |
3 ms |
336 KB |
Output is correct |
19 |
Correct |
3 ms |
332 KB |
Output is correct |
20 |
Correct |
4 ms |
336 KB |
Output is correct |
21 |
Correct |
3 ms |
424 KB |
Output is correct |
22 |
Correct |
4 ms |
332 KB |
Output is correct |
23 |
Correct |
3 ms |
332 KB |
Output is correct |
24 |
Correct |
3 ms |
332 KB |
Output is correct |
25 |
Correct |
6 ms |
460 KB |
Output is correct |
26 |
Correct |
9 ms |
460 KB |
Output is correct |
27 |
Correct |
16 ms |
460 KB |
Output is correct |
28 |
Correct |
19 ms |
524 KB |
Output is correct |
29 |
Correct |
19 ms |
520 KB |
Output is correct |
30 |
Correct |
19 ms |
460 KB |
Output is correct |
31 |
Correct |
19 ms |
532 KB |
Output is correct |
32 |
Correct |
19 ms |
528 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
332 KB |
Output is correct |
2 |
Correct |
0 ms |
332 KB |
Output is correct |
3 |
Correct |
0 ms |
204 KB |
Output is correct |
4 |
Correct |
0 ms |
332 KB |
Output is correct |
5 |
Correct |
0 ms |
332 KB |
Output is correct |
6 |
Correct |
0 ms |
332 KB |
Output is correct |
7 |
Correct |
0 ms |
332 KB |
Output is correct |
8 |
Correct |
1 ms |
332 KB |
Output is correct |
9 |
Correct |
1 ms |
332 KB |
Output is correct |
10 |
Correct |
0 ms |
332 KB |
Output is correct |
11 |
Correct |
1 ms |
332 KB |
Output is correct |
12 |
Correct |
1 ms |
332 KB |
Output is correct |
13 |
Correct |
1 ms |
332 KB |
Output is correct |
14 |
Correct |
0 ms |
332 KB |
Output is correct |
15 |
Correct |
0 ms |
332 KB |
Output is correct |
16 |
Correct |
0 ms |
332 KB |
Output is correct |
17 |
Correct |
0 ms |
332 KB |
Output is correct |
18 |
Correct |
0 ms |
332 KB |
Output is correct |
19 |
Correct |
0 ms |
332 KB |
Output is correct |
20 |
Correct |
1 ms |
332 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 |
344 KB |
Output is correct |
24 |
Correct |
1 ms |
344 KB |
Output is correct |
25 |
Correct |
1 ms |
344 KB |
Output is correct |
26 |
Correct |
1 ms |
344 KB |
Output is correct |
27 |
Correct |
1 ms |
344 KB |
Output is correct |
28 |
Correct |
0 ms |
344 KB |
Output is correct |
29 |
Correct |
1 ms |
344 KB |
Output is correct |
30 |
Correct |
1 ms |
344 KB |
Output is correct |
31 |
Correct |
1 ms |
348 KB |
Output is correct |
32 |
Correct |
1 ms |
344 KB |
Output is correct |
33 |
Correct |
1 ms |
344 KB |
Output is correct |
34 |
Correct |
1 ms |
344 KB |
Output is correct |
35 |
Correct |
1 ms |
344 KB |
Output is correct |
36 |
Correct |
1 ms |
344 KB |
Output is correct |
37 |
Correct |
1 ms |
344 KB |
Output is correct |
38 |
Correct |
1 ms |
344 KB |
Output is correct |
39 |
Correct |
2 ms |
344 KB |
Output is correct |
40 |
Correct |
2 ms |
344 KB |
Output is correct |
41 |
Correct |
3 ms |
344 KB |
Output is correct |
42 |
Correct |
3 ms |
344 KB |
Output is correct |
43 |
Correct |
3 ms |
344 KB |
Output is correct |
44 |
Correct |
3 ms |
336 KB |
Output is correct |
45 |
Correct |
3 ms |
344 KB |
Output is correct |
46 |
Correct |
5 ms |
344 KB |
Output is correct |
47 |
Correct |
3 ms |
444 KB |
Output is correct |
48 |
Correct |
6 ms |
472 KB |
Output is correct |
49 |
Correct |
9 ms |
472 KB |
Output is correct |
50 |
Correct |
14 ms |
528 KB |
Output is correct |
51 |
Correct |
19 ms |
540 KB |
Output is correct |
52 |
Correct |
19 ms |
472 KB |
Output is correct |
53 |
Correct |
23 ms |
552 KB |
Output is correct |
54 |
Correct |
20 ms |
600 KB |
Output is correct |
55 |
Correct |
19 ms |
472 KB |
Output is correct |
56 |
Correct |
3 ms |
444 KB |
Output is correct |
57 |
Correct |
10 ms |
500 KB |
Output is correct |
58 |
Correct |
17 ms |
524 KB |
Output is correct |
59 |
Correct |
20 ms |
472 KB |
Output is correct |
60 |
Correct |
18 ms |
460 KB |
Output is correct |
61 |
Correct |
19 ms |
532 KB |
Output is correct |
62 |
Correct |
18 ms |
460 KB |
Output is correct |
63 |
Correct |
19 ms |
536 KB |
Output is correct |
64 |
Correct |
14 ms |
508 KB |
Output is correct |
65 |
Correct |
3 ms |
332 KB |
Output is correct |
66 |
Correct |
6 ms |
456 KB |
Output is correct |
67 |
Correct |
10 ms |
480 KB |
Output is correct |
68 |
Correct |
14 ms |
460 KB |
Output is correct |
69 |
Correct |
19 ms |
536 KB |
Output is correct |
70 |
Correct |
19 ms |
460 KB |
Output is correct |
71 |
Correct |
19 ms |
460 KB |
Output is correct |
72 |
Correct |
19 ms |
532 KB |
Output is correct |
73 |
Correct |
18 ms |
528 KB |
Output is correct |
74 |
Correct |
19 ms |
456 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
332 KB |
Output is correct |
2 |
Correct |
0 ms |
332 KB |
Output is correct |
3 |
Correct |
0 ms |
204 KB |
Output is correct |
4 |
Correct |
0 ms |
336 KB |
Output is correct |
5 |
Correct |
1 ms |
344 KB |
Output is correct |
6 |
Correct |
1 ms |
344 KB |
Output is correct |
7 |
Correct |
1 ms |
344 KB |
Output is correct |
8 |
Correct |
1 ms |
332 KB |
Output is correct |
9 |
Correct |
1 ms |
332 KB |
Output is correct |
10 |
Correct |
1 ms |
332 KB |
Output is correct |
11 |
Correct |
1 ms |
332 KB |
Output is correct |
12 |
Correct |
1 ms |
332 KB |
Output is correct |
13 |
Correct |
0 ms |
332 KB |
Output is correct |
14 |
Correct |
0 ms |
332 KB |
Output is correct |
15 |
Correct |
0 ms |
332 KB |
Output is correct |
16 |
Correct |
0 ms |
332 KB |
Output is correct |
17 |
Correct |
1 ms |
332 KB |
Output is correct |
18 |
Correct |
1 ms |
332 KB |
Output is correct |
19 |
Correct |
1 ms |
332 KB |
Output is correct |
20 |
Correct |
0 ms |
332 KB |
Output is correct |
21 |
Correct |
1 ms |
332 KB |
Output is correct |
22 |
Correct |
1 ms |
332 KB |
Output is correct |
23 |
Correct |
0 ms |
332 KB |
Output is correct |
24 |
Correct |
1 ms |
332 KB |
Output is correct |
25 |
Correct |
1 ms |
332 KB |
Output is correct |
26 |
Correct |
2 ms |
332 KB |
Output is correct |
27 |
Correct |
2 ms |
332 KB |
Output is correct |
28 |
Correct |
3 ms |
332 KB |
Output is correct |
29 |
Correct |
3 ms |
332 KB |
Output is correct |
30 |
Correct |
3 ms |
332 KB |
Output is correct |
31 |
Correct |
3 ms |
332 KB |
Output is correct |
32 |
Correct |
3 ms |
332 KB |
Output is correct |
33 |
Correct |
3 ms |
332 KB |
Output is correct |
34 |
Correct |
3 ms |
416 KB |
Output is correct |
35 |
Correct |
6 ms |
460 KB |
Output is correct |
36 |
Correct |
9 ms |
480 KB |
Output is correct |
37 |
Correct |
14 ms |
504 KB |
Output is correct |
38 |
Correct |
20 ms |
532 KB |
Output is correct |
39 |
Correct |
20 ms |
524 KB |
Output is correct |
40 |
Correct |
19 ms |
528 KB |
Output is correct |
41 |
Correct |
19 ms |
460 KB |
Output is correct |
42 |
Correct |
26 ms |
460 KB |
Output is correct |
43 |
Correct |
3 ms |
332 KB |
Output is correct |
44 |
Correct |
9 ms |
480 KB |
Output is correct |
45 |
Correct |
14 ms |
508 KB |
Output is correct |
46 |
Correct |
18 ms |
532 KB |
Output is correct |
47 |
Correct |
19 ms |
460 KB |
Output is correct |
48 |
Correct |
19 ms |
524 KB |
Output is correct |
49 |
Correct |
19 ms |
528 KB |
Output is correct |
50 |
Correct |
22 ms |
460 KB |
Output is correct |
51 |
Correct |
1 ms |
204 KB |
Output is correct |
52 |
Correct |
11 ms |
332 KB |
Output is correct |
53 |
Correct |
17 ms |
340 KB |
Output is correct |
54 |
Correct |
29 ms |
336 KB |
Output is correct |
55 |
Correct |
28 ms |
332 KB |
Output is correct |
56 |
Correct |
107 ms |
332 KB |
Output is correct |
57 |
Correct |
98 ms |
332 KB |
Output is correct |
58 |
Correct |
92 ms |
332 KB |
Output is correct |
59 |
Correct |
102 ms |
332 KB |
Output is correct |
60 |
Correct |
101 ms |
332 KB |
Output is correct |
61 |
Correct |
1 ms |
204 KB |
Output is correct |
62 |
Correct |
15 ms |
332 KB |
Output is correct |
63 |
Correct |
31 ms |
460 KB |
Output is correct |
64 |
Correct |
26 ms |
332 KB |
Output is correct |
65 |
Correct |
48 ms |
332 KB |
Output is correct |
66 |
Correct |
78 ms |
332 KB |
Output is correct |
67 |
Correct |
97 ms |
332 KB |
Output is correct |
68 |
Correct |
99 ms |
332 KB |
Output is correct |
69 |
Correct |
95 ms |
332 KB |
Output is correct |