This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
/** - dwuy -
/> フ
| _ _|
/`ミ _x ノ
/ |
/ ヽ ?
/ ̄| | | |
| ( ̄ヽ__ヽ_)_)
\二つ
**/
#include <bits/stdc++.h>
#define fastIO ios_base::sync_with_stdio(false); cin.tie(NULL)
#define file(a) freopen(a".inp","r",stdin); freopen(a".out", "w",stdout)
#define fi first
#define se second
#define endl "\n"
#define len(s) int32_t(s.length())
#define MASK(k)(1LL<<(k))
#define TASK "test"
#define int long long
using namespace std;
typedef tuple<int, int, int> tpiii;
typedef pair<double, double> pdd;
typedef pair<int, int> pii;
typedef long long ll;
const long long OO = 1e18;
const int MOD = 1e9 + 7;
const int INF = 1e9;
const int MX = 2005;
int n, L, R;
int a[MX];
void nhap(){
cin >> n >> L >> R;
for(int i=1; i<=n; i++) cin >> a[i];
}
void solve(){
int ans = 0;
for(int mask=MASK(46); mask; mask>>=1){
bitset<MX> f[MX] = {0};
f[0][0] = 1;
for(int i=1; i<=n; i++){
int sum = 0;
for(int j=i; j>=1; j--){
sum += a[j];
int tmp = sum&(-1LL^(mask-1));
if((tmp|ans) == ans){
f[i] |= f[j-1]<<1;
}
}
}
bool ok = 0;
for(int i=L; i<=R; i++) ok |= f[n][i];
if(!ok) ans |= mask;
}
cout << ans;
}
int32_t main(){
fastIO;
//file(TASK);
nhap();
solve();
return 0;
}
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