#include <bits/stdc++.h>
using namespace std;
using ll = long long;
const int N = 2001;
int dp[N], a[N], n, aa, b, dp1[N][N];
ll mx = 0, p[N];
bool works(int bit){
/*
if(aa == 1){
ll most = mx + (1LL << bit);
for(int i=0; i<=n; i++){
dp[i] = 1e9;
}
dp[0] = 0;
for(int i=1; i <= n; i++){
for(int j = 0; j < i; j++){
ll sum = p[i] - p[j];
if((sum|mx) < most){
dp[i] = min(dp[i], dp[j] + 1);
}
}
}
return dp[n]>b;
}
else{
*/
cerr << "BIT " << bit << "\n";
ll most = mx + (1LL << bit);
for(int i=0; i <= n; i++){
for(int j=0; j <= n; j++){
dp1[i][j] = 0;
}
}
dp1[0][0] = 1;
for(int i=1; i<=n; i++){
for(int j=1; j <= i; j++){
for(int k=0; k <= i; k++){
if(dp1[k][j-1] && ((p[i] - p[k])|mx)<most){
dp1[i][j]|=1;
}
}
}
}
for(int i = 0; i <= n; i++){
for(int j = 0; j <= n; j++){
cerr << "(" << i << "," << j << ") " << dp1[i][j] << "\n";
}
}
for(int i = aa; i <= b; i++){
if(dp1[n][i]){
return 0;
}
}
return 1;
//}
}
int main(){
ios_base::sync_with_stdio(0); cin.tie(0);
cin >> n >> aa >> b;
for(int i = 1; i <= n; i++){
cin >> a[i];
p[i] = p[i-1] + a[i];
}
for(int bit = 40; bit >= 0; bit--){
if(works(bit)){
mx += 1LL << bit;
}
}
cout << mx << "\n";
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
31 ms |
384 KB |
Output is correct |
2 |
Correct |
51 ms |
456 KB |
Output is correct |
3 |
Correct |
3 ms |
384 KB |
Output is correct |
4 |
Correct |
23 ms |
384 KB |
Output is correct |
5 |
Correct |
75 ms |
384 KB |
Output is correct |
6 |
Correct |
157 ms |
504 KB |
Output is correct |
7 |
Correct |
215 ms |
632 KB |
Output is correct |
8 |
Correct |
270 ms |
632 KB |
Output is correct |
9 |
Correct |
274 ms |
632 KB |
Output is correct |
10 |
Correct |
290 ms |
632 KB |
Output is correct |
11 |
Correct |
275 ms |
540 KB |
Output is correct |
12 |
Correct |
274 ms |
632 KB |
Output is correct |
13 |
Correct |
271 ms |
636 KB |
Output is correct |
14 |
Correct |
37 ms |
384 KB |
Output is correct |
15 |
Incorrect |
33 ms |
384 KB |
Output isn't correct |
16 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
31 ms |
384 KB |
Output is correct |
2 |
Correct |
50 ms |
444 KB |
Output is correct |
3 |
Correct |
4 ms |
384 KB |
Output is correct |
4 |
Correct |
24 ms |
384 KB |
Output is correct |
5 |
Correct |
87 ms |
384 KB |
Output is correct |
6 |
Correct |
161 ms |
504 KB |
Output is correct |
7 |
Correct |
199 ms |
504 KB |
Output is correct |
8 |
Correct |
292 ms |
632 KB |
Output is correct |
9 |
Correct |
277 ms |
632 KB |
Output is correct |
10 |
Correct |
276 ms |
636 KB |
Output is correct |
11 |
Correct |
272 ms |
760 KB |
Output is correct |
12 |
Correct |
273 ms |
632 KB |
Output is correct |
13 |
Correct |
272 ms |
760 KB |
Output is correct |
14 |
Correct |
31 ms |
384 KB |
Output is correct |
15 |
Incorrect |
30 ms |
384 KB |
Output isn't correct |
16 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
31 ms |
384 KB |
Output is correct |
2 |
Correct |
51 ms |
448 KB |
Output is correct |
3 |
Correct |
3 ms |
384 KB |
Output is correct |
4 |
Correct |
23 ms |
504 KB |
Output is correct |
5 |
Correct |
75 ms |
384 KB |
Output is correct |
6 |
Correct |
166 ms |
556 KB |
Output is correct |
7 |
Correct |
200 ms |
504 KB |
Output is correct |
8 |
Correct |
275 ms |
712 KB |
Output is correct |
9 |
Correct |
272 ms |
632 KB |
Output is correct |
10 |
Correct |
273 ms |
636 KB |
Output is correct |
11 |
Correct |
272 ms |
632 KB |
Output is correct |
12 |
Correct |
271 ms |
556 KB |
Output is correct |
13 |
Correct |
271 ms |
636 KB |
Output is correct |
14 |
Correct |
297 ms |
636 KB |
Output is correct |
15 |
Correct |
437 ms |
888 KB |
Output is correct |
16 |
Correct |
957 ms |
1272 KB |
Output is correct |
17 |
Execution timed out |
1083 ms |
1284 KB |
Time limit exceeded |
18 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
31 ms |
384 KB |
Output is correct |
2 |
Correct |
50 ms |
384 KB |
Output is correct |
3 |
Correct |
3 ms |
384 KB |
Output is correct |
4 |
Correct |
25 ms |
384 KB |
Output is correct |
5 |
Correct |
75 ms |
384 KB |
Output is correct |
6 |
Correct |
158 ms |
636 KB |
Output is correct |
7 |
Correct |
206 ms |
504 KB |
Output is correct |
8 |
Correct |
268 ms |
544 KB |
Output is correct |
9 |
Correct |
273 ms |
632 KB |
Output is correct |
10 |
Correct |
288 ms |
636 KB |
Output is correct |
11 |
Correct |
273 ms |
632 KB |
Output is correct |
12 |
Correct |
274 ms |
636 KB |
Output is correct |
13 |
Correct |
278 ms |
632 KB |
Output is correct |
14 |
Correct |
31 ms |
384 KB |
Output is correct |
15 |
Incorrect |
31 ms |
384 KB |
Output isn't correct |
16 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
31 ms |
384 KB |
Output is correct |
2 |
Correct |
50 ms |
456 KB |
Output is correct |
3 |
Correct |
3 ms |
384 KB |
Output is correct |
4 |
Correct |
23 ms |
384 KB |
Output is correct |
5 |
Correct |
74 ms |
480 KB |
Output is correct |
6 |
Correct |
158 ms |
484 KB |
Output is correct |
7 |
Correct |
205 ms |
504 KB |
Output is correct |
8 |
Correct |
282 ms |
632 KB |
Output is correct |
9 |
Correct |
282 ms |
632 KB |
Output is correct |
10 |
Correct |
281 ms |
632 KB |
Output is correct |
11 |
Correct |
278 ms |
632 KB |
Output is correct |
12 |
Correct |
274 ms |
632 KB |
Output is correct |
13 |
Correct |
274 ms |
632 KB |
Output is correct |
14 |
Correct |
28 ms |
384 KB |
Output is correct |
15 |
Correct |
77 ms |
512 KB |
Output is correct |
16 |
Correct |
124 ms |
632 KB |
Output is correct |
17 |
Correct |
245 ms |
632 KB |
Output is correct |
18 |
Correct |
271 ms |
760 KB |
Output is correct |
19 |
Correct |
268 ms |
760 KB |
Output is correct |
20 |
Correct |
271 ms |
632 KB |
Output is correct |
21 |
Correct |
269 ms |
632 KB |
Output is correct |
22 |
Correct |
272 ms |
648 KB |
Output is correct |
23 |
Correct |
272 ms |
632 KB |
Output is correct |
24 |
Correct |
296 ms |
632 KB |
Output is correct |
25 |
Correct |
418 ms |
820 KB |
Output is correct |
26 |
Correct |
939 ms |
1144 KB |
Output is correct |
27 |
Execution timed out |
1082 ms |
1564 KB |
Time limit exceeded |
28 |
Halted |
0 ms |
0 KB |
- |