#include <bits/stdc++.h>
#define int long long
#define pb push_back
#define F first
#define S second
using namespace std;
const long long N = 2e5 + 10;
const long long mod = 998244353;
const long long inf = 1e18;
signed main() {
ios_base::sync_with_stdio(false);
cin.tie(NULL);
cout.tie(NULL);
int n,l,r;
cin >> n >> l >> r;
vector<int>a(n + 1),pref(n + 1);
for(int i = 1; i <= n; i++) {
cin >> a[i];
pref[i] = pref[i - 1] + a[i];
}
int res = (1ll << 31) - 1;
for(int j = 30; j >= 0; j--) {
int try_res = res ^ (1ll << j);
vector<int>mx(n + 1);
vector<int>mn(n + 1,inf);
mn[0] = 0;
for(int i = 1; i <= n; i++) {
for(int k = 1; k <= i; k++) {
int sum = pref[i] - pref[k - 1];
if((sum & try_res) == sum) {
mx[i] = max(mx[i],mx[k - 1] + 1);
mn[i] = min(mn[i],mn[k - 1] + 1);
}
}
}
/*if(try_res == 11) {
for(int i = 1; i <= n; i++) cout << mx[i] << " ";
cout << endl;
for(int i = 1; i <= n; i++) cout << mn[i] << " ";
cout << endl;
}*/
int mnn = *min_element(mx.begin() + 1,mx.end());
int mxx = *max_element(mn.begin() + 1,mn.end());
if(mx[n] >= l && mnn > 0 && mxx < inf && mn[n] <= r) res = try_res;
}
cout << res;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |