#include <bits/stdc++.h>
using namespace std;
long long n,a,b;
long long c[2001],p[2001];
long long dp[2001][2001];
bool check(long long x)
{
//cout<<"! "<<x<<endl;
dp[0][0]=1;
for(long long i=1;i<=n;i++)
{
for(long long j=1;j<=n;j++)
{
dp[i][j]=0;
for(long long k=0;k<i;k++)
{
if(((p[i]-p[k])|x)<=x)
{
//cout<<p[i]-p[k]<<endl;
dp[i][j]=max(dp[i][j],dp[k][j-1]);
}
}
//cout<<i<<" "<<j<<" "<<dp[i][j]<<endl;
if(i==n&&j>=a&&j<=b&&dp[i][j])
{
return 1;
}
}
}
return 0;
}
void read()
{
cin>>n>>a>>b;
for(long long i=1;i<=n;i++)
{
cin>>c[i];
p[i]=p[i-1]+c[i];
}
}
void solve()
{
long long ans=0;
for(long long i=3;i>=0;i--)
{
long long curr=ans;
for(long long j=i-1;j>=0;j--)
curr+=(1<<j);
//cout<<curr<<endl;
if(!check(curr))ans+=(1<<i);
}
cout<<ans<<endl;
}
int main()
{
ios_base::sync_with_stdio(false);
cin.tie(NULL);
cout.tie(NULL);
read();
solve();
return 0;
}
/*
6 1 3
8 1 2 1 5 4
*/
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
336 KB |
Output is correct |
2 |
Correct |
1 ms |
336 KB |
Output is correct |
3 |
Correct |
1 ms |
336 KB |
Output is correct |
4 |
Correct |
1 ms |
336 KB |
Output is correct |
5 |
Incorrect |
1 ms |
336 KB |
Output isn't correct |
6 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
508 KB |
Output is correct |
2 |
Correct |
1 ms |
336 KB |
Output is correct |
3 |
Correct |
1 ms |
336 KB |
Output is correct |
4 |
Correct |
1 ms |
336 KB |
Output is correct |
5 |
Incorrect |
1 ms |
336 KB |
Output isn't correct |
6 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
504 KB |
Output is correct |
2 |
Correct |
1 ms |
336 KB |
Output is correct |
3 |
Correct |
1 ms |
336 KB |
Output is correct |
4 |
Correct |
1 ms |
336 KB |
Output is correct |
5 |
Incorrect |
1 ms |
336 KB |
Output isn't correct |
6 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
336 KB |
Output is correct |
2 |
Correct |
1 ms |
336 KB |
Output is correct |
3 |
Correct |
1 ms |
336 KB |
Output is correct |
4 |
Correct |
1 ms |
336 KB |
Output is correct |
5 |
Incorrect |
1 ms |
336 KB |
Output isn't correct |
6 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
336 KB |
Output is correct |
2 |
Correct |
1 ms |
336 KB |
Output is correct |
3 |
Correct |
1 ms |
336 KB |
Output is correct |
4 |
Correct |
1 ms |
336 KB |
Output is correct |
5 |
Incorrect |
1 ms |
508 KB |
Output isn't correct |
6 |
Halted |
0 ms |
0 KB |
- |