#include<bits/stdc++.h>
using namespace std;
#define FOR(i, a, b) for(int i = a; i < b; ++i)
#define REP(i, n) FOR(i, 0, n)
#define _ << " " <<
#define sz(x) ((int) x.size())
#define pb(x) push_back(x)
#define TRACE(x) cerr << #x << " = " << x << endl
typedef long long ll;
typedef pair<int, int> point;
const int mod = 1e9 + 7;
int add(int x, int y) {x += y; if(x >= mod) return x - mod; return x;}
int sub(int x, int y) {x -= y; if(x < 0) return x + mod; return x;}
int mul(int x, int y) {return (ll) x * y % mod;}
const int MAXN = 2e3 + 5;
ll n, a, b, x[MAXN], prefix[MAXN], dp1[MAXN], dp[MAXN][MAXN];
int rek(int pos, int num, ll forbidden){
if(pos < 0){
if(num >= a && num <= b)
return 1;
else
return 0;
}
if(dp[pos][num] != -1)
return dp[pos][num];
int ret = 0;
ll sum = 0;
for(int i = pos; i >= 0; --i){
sum += x[i];
if((sum & forbidden) == 0)
ret |= rek(i - 1, num + 1, forbidden);
if(ret)
return dp[pos][num] = ret;
}
return dp[pos][num] = ret;
}
int rek_min(int pos, ll forbidden){
if(pos < 0)
return 0;
if(dp1[pos] != -1)
return dp1[pos];
int ret = 1e5;
ll sum = 0;
for(int i = pos; i >= 0; --i){
sum += x[i];
if((sum & forbidden) == 0)
ret = min(ret, rek_min(i - 1, forbidden) + 1);
}
return dp1[pos] = ret;
}
int main(){
ios_base::sync_with_stdio(false); cin.tie(0);
cin >> n >> a >> b;
REP(i, n)
cin >> x[i];
ll forbidden = 0, sol = 0;
for(int i = 40; i >= 0; --i){
memset(dp1, -1, sizeof(dp1));
memset(dp, -1, sizeof(dp));
forbidden |= (1LL << i);
if(n <= -100){
if(!rek(n - 1, 0, forbidden)){
forbidden ^= (1LL << i);
sol |= (1LL << i);
}
}
else{
int val = rek_min(n - 1, forbidden);
if(val > b){
forbidden ^= (1LL << i);
sol |= (1LL << i);
}
}
}
cout << sol;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
183 ms |
31864 KB |
Output is correct |
2 |
Correct |
160 ms |
31864 KB |
Output is correct |
3 |
Correct |
218 ms |
31872 KB |
Output is correct |
4 |
Correct |
160 ms |
31904 KB |
Output is correct |
5 |
Correct |
158 ms |
31864 KB |
Output is correct |
6 |
Correct |
182 ms |
31864 KB |
Output is correct |
7 |
Correct |
164 ms |
31868 KB |
Output is correct |
8 |
Correct |
169 ms |
31900 KB |
Output is correct |
9 |
Correct |
153 ms |
31864 KB |
Output is correct |
10 |
Correct |
179 ms |
31964 KB |
Output is correct |
11 |
Correct |
234 ms |
31904 KB |
Output is correct |
12 |
Correct |
209 ms |
31992 KB |
Output is correct |
13 |
Correct |
179 ms |
31864 KB |
Output is correct |
14 |
Correct |
149 ms |
31844 KB |
Output is correct |
15 |
Incorrect |
160 ms |
31904 KB |
Output isn't correct |
16 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
170 ms |
31864 KB |
Output is correct |
2 |
Correct |
146 ms |
31904 KB |
Output is correct |
3 |
Correct |
150 ms |
31872 KB |
Output is correct |
4 |
Correct |
148 ms |
31908 KB |
Output is correct |
5 |
Correct |
147 ms |
31776 KB |
Output is correct |
6 |
Correct |
145 ms |
31964 KB |
Output is correct |
7 |
Correct |
165 ms |
31864 KB |
Output is correct |
8 |
Correct |
217 ms |
31872 KB |
Output is correct |
9 |
Correct |
208 ms |
31836 KB |
Output is correct |
10 |
Correct |
164 ms |
31992 KB |
Output is correct |
11 |
Correct |
164 ms |
31864 KB |
Output is correct |
12 |
Correct |
202 ms |
31864 KB |
Output is correct |
13 |
Correct |
191 ms |
31872 KB |
Output is correct |
14 |
Correct |
205 ms |
31992 KB |
Output is correct |
15 |
Incorrect |
171 ms |
31992 KB |
Output isn't correct |
16 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
140 ms |
31736 KB |
Output is correct |
2 |
Correct |
168 ms |
31868 KB |
Output is correct |
3 |
Correct |
189 ms |
31864 KB |
Output is correct |
4 |
Correct |
178 ms |
31864 KB |
Output is correct |
5 |
Correct |
177 ms |
31864 KB |
Output is correct |
6 |
Correct |
153 ms |
31760 KB |
Output is correct |
7 |
Correct |
150 ms |
31996 KB |
Output is correct |
8 |
Correct |
173 ms |
31868 KB |
Output is correct |
9 |
Correct |
163 ms |
31864 KB |
Output is correct |
10 |
Correct |
203 ms |
31864 KB |
Output is correct |
11 |
Correct |
199 ms |
31868 KB |
Output is correct |
12 |
Correct |
192 ms |
31864 KB |
Output is correct |
13 |
Correct |
158 ms |
31876 KB |
Output is correct |
14 |
Correct |
166 ms |
31864 KB |
Output is correct |
15 |
Correct |
184 ms |
31992 KB |
Output is correct |
16 |
Correct |
175 ms |
31904 KB |
Output is correct |
17 |
Correct |
202 ms |
31868 KB |
Output is correct |
18 |
Correct |
201 ms |
31768 KB |
Output is correct |
19 |
Correct |
175 ms |
31964 KB |
Output is correct |
20 |
Correct |
139 ms |
31864 KB |
Output is correct |
21 |
Correct |
139 ms |
31864 KB |
Output is correct |
22 |
Correct |
145 ms |
31864 KB |
Output is correct |
23 |
Correct |
173 ms |
31880 KB |
Output is correct |
24 |
Correct |
168 ms |
31864 KB |
Output is correct |
25 |
Correct |
172 ms |
31864 KB |
Output is correct |
26 |
Correct |
168 ms |
31872 KB |
Output is correct |
27 |
Correct |
194 ms |
31872 KB |
Output is correct |
28 |
Correct |
159 ms |
31872 KB |
Output is correct |
29 |
Correct |
147 ms |
31872 KB |
Output is correct |
30 |
Correct |
174 ms |
31892 KB |
Output is correct |
31 |
Correct |
202 ms |
31872 KB |
Output is correct |
32 |
Correct |
209 ms |
31836 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
188 ms |
31864 KB |
Output is correct |
2 |
Correct |
155 ms |
31864 KB |
Output is correct |
3 |
Correct |
168 ms |
31868 KB |
Output is correct |
4 |
Correct |
274 ms |
31868 KB |
Output is correct |
5 |
Correct |
302 ms |
31864 KB |
Output is correct |
6 |
Correct |
302 ms |
31992 KB |
Output is correct |
7 |
Correct |
284 ms |
31992 KB |
Output is correct |
8 |
Correct |
151 ms |
31864 KB |
Output is correct |
9 |
Correct |
271 ms |
31992 KB |
Output is correct |
10 |
Correct |
272 ms |
31864 KB |
Output is correct |
11 |
Correct |
320 ms |
31864 KB |
Output is correct |
12 |
Correct |
166 ms |
31992 KB |
Output is correct |
13 |
Correct |
265 ms |
31992 KB |
Output is correct |
14 |
Correct |
168 ms |
31864 KB |
Output is correct |
15 |
Incorrect |
200 ms |
31864 KB |
Output isn't correct |
16 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
185 ms |
31992 KB |
Output is correct |
2 |
Correct |
208 ms |
31964 KB |
Output is correct |
3 |
Correct |
339 ms |
31864 KB |
Output is correct |
4 |
Correct |
204 ms |
31880 KB |
Output is correct |
5 |
Correct |
182 ms |
31868 KB |
Output is correct |
6 |
Correct |
163 ms |
31864 KB |
Output is correct |
7 |
Correct |
166 ms |
31864 KB |
Output is correct |
8 |
Correct |
181 ms |
31904 KB |
Output is correct |
9 |
Correct |
152 ms |
31884 KB |
Output is correct |
10 |
Correct |
190 ms |
31872 KB |
Output is correct |
11 |
Correct |
162 ms |
31864 KB |
Output is correct |
12 |
Correct |
173 ms |
31868 KB |
Output is correct |
13 |
Correct |
187 ms |
31864 KB |
Output is correct |
14 |
Correct |
204 ms |
31868 KB |
Output is correct |
15 |
Correct |
201 ms |
31864 KB |
Output is correct |
16 |
Correct |
200 ms |
31992 KB |
Output is correct |
17 |
Correct |
171 ms |
31864 KB |
Output is correct |
18 |
Correct |
138 ms |
31864 KB |
Output is correct |
19 |
Correct |
159 ms |
31904 KB |
Output is correct |
20 |
Correct |
173 ms |
31992 KB |
Output is correct |
21 |
Correct |
132 ms |
31852 KB |
Output is correct |
22 |
Correct |
147 ms |
31864 KB |
Output is correct |
23 |
Correct |
184 ms |
31864 KB |
Output is correct |
24 |
Correct |
184 ms |
31868 KB |
Output is correct |
25 |
Correct |
177 ms |
31888 KB |
Output is correct |
26 |
Correct |
151 ms |
31864 KB |
Output is correct |
27 |
Correct |
158 ms |
31868 KB |
Output is correct |
28 |
Correct |
184 ms |
31864 KB |
Output is correct |
29 |
Correct |
206 ms |
31864 KB |
Output is correct |
30 |
Correct |
160 ms |
31780 KB |
Output is correct |
31 |
Correct |
164 ms |
31872 KB |
Output is correct |
32 |
Correct |
196 ms |
31864 KB |
Output is correct |
33 |
Correct |
236 ms |
31864 KB |
Output is correct |
34 |
Correct |
178 ms |
31864 KB |
Output is correct |
35 |
Correct |
238 ms |
31864 KB |
Output is correct |
36 |
Correct |
189 ms |
31992 KB |
Output is correct |
37 |
Correct |
213 ms |
31864 KB |
Output is correct |
38 |
Correct |
226 ms |
31868 KB |
Output is correct |
39 |
Correct |
213 ms |
31864 KB |
Output is correct |
40 |
Correct |
233 ms |
31964 KB |
Output is correct |
41 |
Correct |
208 ms |
31864 KB |
Output is correct |
42 |
Correct |
212 ms |
31964 KB |
Output is correct |
43 |
Correct |
202 ms |
31992 KB |
Output is correct |
44 |
Correct |
175 ms |
31900 KB |
Output is correct |
45 |
Correct |
215 ms |
31864 KB |
Output is correct |
46 |
Correct |
177 ms |
31864 KB |
Output is correct |
47 |
Correct |
166 ms |
31992 KB |
Output is correct |
48 |
Correct |
176 ms |
31904 KB |
Output is correct |
49 |
Correct |
211 ms |
31864 KB |
Output is correct |
50 |
Correct |
245 ms |
31992 KB |
Output is correct |
51 |
Correct |
207 ms |
31964 KB |
Output is correct |
52 |
Correct |
346 ms |
31836 KB |
Output is correct |
53 |
Correct |
208 ms |
31992 KB |
Output is correct |
54 |
Correct |
220 ms |
31964 KB |
Output is correct |
55 |
Correct |
327 ms |
31864 KB |
Output is correct |
56 |
Correct |
209 ms |
32124 KB |
Output is correct |
57 |
Correct |
235 ms |
32028 KB |
Output is correct |
58 |
Correct |
238 ms |
32024 KB |
Output is correct |
59 |
Correct |
274 ms |
31992 KB |
Output is correct |
60 |
Correct |
281 ms |
32024 KB |
Output is correct |
61 |
Correct |
235 ms |
31864 KB |
Output is correct |
62 |
Correct |
232 ms |
31864 KB |
Output is correct |
63 |
Correct |
197 ms |
31952 KB |
Output is correct |
64 |
Correct |
197 ms |
31952 KB |
Output is correct |
65 |
Correct |
228 ms |
31980 KB |
Output is correct |
66 |
Correct |
258 ms |
32020 KB |
Output is correct |
67 |
Correct |
266 ms |
32032 KB |
Output is correct |
68 |
Correct |
324 ms |
31992 KB |
Output is correct |
69 |
Correct |
280 ms |
31992 KB |
Output is correct |