#include <bits/stdc++.h>
#define speed \
ios_base::sync_with_stdio(0); \
cin.tie(0); \
cout.tie(0);
#define precision \
cout.precision(30); \
cerr.precision(10);
#define ll long long
#define ld long double
#define pll pair<ll, ll>
#define pii pair<int, int>
#define forn(n) for (int i = 1; i <= n; i++)
#define forlr(l, r) for (int i = l; i != r; (l > r ? i-- : i++))
#define pb(x) push_back(x)
#define sz(x) (int)x.size()
#define mp(x, y) make_pair(x, y)
#define all(x) x.begin(), x.end()
#define pc(x) __builtin_popcount(x)
#define pcll(x) __builtin_popcountll(x)
#define F first
#define S second
using namespace std;
int n, s, a[505], dp[250005];
bitset<250005> w;
void add(int x) {
s += x;
for (int i = s - x; i >= 0; i--) dp[i + x] += dp[i];
}
void del(int x) {
for (int i = x; i <= s; i++) dp[i] -= dp[i - x];
s -= x;
}
int main() {
speed;
precision;
// code
cin >> n;
dp[0] = 1;
for (int i = 1; i <= n; i++) {
cin >> a[i];
add(a[i]);
}
if (s % 2 || !dp[s / 2]) {
cout << 0;
return 0;
}
for (int i = 0; i <= 250000; i++) w[i] = 1;
for (int i = 1; i <= n; i++) {
del(a[i]);
for (int j = 0; j <= 250000; j++) {
if ((s + j) % 2 || !dp[(s + j) / 2]) w[j] = 0;
}
add(a[i]);
}
cout << w.count() << "\n";
for (int i = 1; i <= 250000; i++)
if (w[i]) cout << i << " ";
// endl
#ifndef ONLINE_JUDGE
cerr << "\nTime elapsed: " << 1.0 * clock() / CLOCKS_PER_SEC << " s.\n";
#endif
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
4 ms |
364 KB |
Output is correct |
2 |
Correct |
5 ms |
364 KB |
Output is correct |
3 |
Correct |
0 ms |
364 KB |
Output is correct |
4 |
Correct |
5 ms |
364 KB |
Output is correct |
5 |
Correct |
9 ms |
364 KB |
Output is correct |
6 |
Correct |
6 ms |
364 KB |
Output is correct |
7 |
Correct |
5 ms |
364 KB |
Output is correct |
8 |
Correct |
9 ms |
364 KB |
Output is correct |
9 |
Correct |
8 ms |
364 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
4 ms |
364 KB |
Output is correct |
2 |
Correct |
5 ms |
364 KB |
Output is correct |
3 |
Correct |
0 ms |
364 KB |
Output is correct |
4 |
Correct |
5 ms |
364 KB |
Output is correct |
5 |
Correct |
9 ms |
364 KB |
Output is correct |
6 |
Correct |
6 ms |
364 KB |
Output is correct |
7 |
Correct |
5 ms |
364 KB |
Output is correct |
8 |
Correct |
9 ms |
364 KB |
Output is correct |
9 |
Correct |
8 ms |
364 KB |
Output is correct |
10 |
Correct |
20 ms |
364 KB |
Output is correct |
11 |
Correct |
20 ms |
364 KB |
Output is correct |
12 |
Correct |
20 ms |
492 KB |
Output is correct |
13 |
Correct |
19 ms |
364 KB |
Output is correct |
14 |
Correct |
19 ms |
364 KB |
Output is correct |
15 |
Correct |
19 ms |
364 KB |
Output is correct |
16 |
Correct |
20 ms |
492 KB |
Output is correct |
17 |
Correct |
13 ms |
364 KB |
Output is correct |
18 |
Correct |
17 ms |
364 KB |
Output is correct |
19 |
Correct |
20 ms |
364 KB |
Output is correct |
20 |
Correct |
21 ms |
364 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
4 ms |
364 KB |
Output is correct |
2 |
Correct |
5 ms |
364 KB |
Output is correct |
3 |
Correct |
0 ms |
364 KB |
Output is correct |
4 |
Correct |
5 ms |
364 KB |
Output is correct |
5 |
Correct |
9 ms |
364 KB |
Output is correct |
6 |
Correct |
6 ms |
364 KB |
Output is correct |
7 |
Correct |
5 ms |
364 KB |
Output is correct |
8 |
Correct |
9 ms |
364 KB |
Output is correct |
9 |
Correct |
8 ms |
364 KB |
Output is correct |
10 |
Correct |
20 ms |
364 KB |
Output is correct |
11 |
Correct |
20 ms |
364 KB |
Output is correct |
12 |
Correct |
20 ms |
492 KB |
Output is correct |
13 |
Correct |
19 ms |
364 KB |
Output is correct |
14 |
Correct |
19 ms |
364 KB |
Output is correct |
15 |
Correct |
19 ms |
364 KB |
Output is correct |
16 |
Correct |
20 ms |
492 KB |
Output is correct |
17 |
Correct |
13 ms |
364 KB |
Output is correct |
18 |
Correct |
17 ms |
364 KB |
Output is correct |
19 |
Correct |
20 ms |
364 KB |
Output is correct |
20 |
Correct |
21 ms |
364 KB |
Output is correct |
21 |
Correct |
43 ms |
364 KB |
Output is correct |
22 |
Correct |
48 ms |
364 KB |
Output is correct |
23 |
Correct |
34 ms |
364 KB |
Output is correct |
24 |
Correct |
67 ms |
364 KB |
Output is correct |
25 |
Correct |
63 ms |
464 KB |
Output is correct |
26 |
Correct |
65 ms |
492 KB |
Output is correct |
27 |
Correct |
65 ms |
364 KB |
Output is correct |
28 |
Correct |
65 ms |
364 KB |
Output is correct |
29 |
Correct |
67 ms |
364 KB |
Output is correct |
30 |
Correct |
70 ms |
492 KB |
Output is correct |
31 |
Correct |
65 ms |
364 KB |
Output is correct |
32 |
Correct |
64 ms |
492 KB |
Output is correct |
33 |
Correct |
66 ms |
492 KB |
Output is correct |
34 |
Correct |
67 ms |
364 KB |
Output is correct |
35 |
Correct |
65 ms |
364 KB |
Output is correct |
36 |
Correct |
66 ms |
364 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
4 ms |
364 KB |
Output is correct |
2 |
Correct |
5 ms |
364 KB |
Output is correct |
3 |
Correct |
0 ms |
364 KB |
Output is correct |
4 |
Correct |
5 ms |
364 KB |
Output is correct |
5 |
Correct |
9 ms |
364 KB |
Output is correct |
6 |
Correct |
6 ms |
364 KB |
Output is correct |
7 |
Correct |
5 ms |
364 KB |
Output is correct |
8 |
Correct |
9 ms |
364 KB |
Output is correct |
9 |
Correct |
8 ms |
364 KB |
Output is correct |
10 |
Correct |
20 ms |
364 KB |
Output is correct |
11 |
Correct |
20 ms |
364 KB |
Output is correct |
12 |
Correct |
20 ms |
492 KB |
Output is correct |
13 |
Correct |
19 ms |
364 KB |
Output is correct |
14 |
Correct |
19 ms |
364 KB |
Output is correct |
15 |
Correct |
19 ms |
364 KB |
Output is correct |
16 |
Correct |
20 ms |
492 KB |
Output is correct |
17 |
Correct |
13 ms |
364 KB |
Output is correct |
18 |
Correct |
17 ms |
364 KB |
Output is correct |
19 |
Correct |
20 ms |
364 KB |
Output is correct |
20 |
Correct |
21 ms |
364 KB |
Output is correct |
21 |
Correct |
43 ms |
364 KB |
Output is correct |
22 |
Correct |
48 ms |
364 KB |
Output is correct |
23 |
Correct |
34 ms |
364 KB |
Output is correct |
24 |
Correct |
67 ms |
364 KB |
Output is correct |
25 |
Correct |
63 ms |
464 KB |
Output is correct |
26 |
Correct |
65 ms |
492 KB |
Output is correct |
27 |
Correct |
65 ms |
364 KB |
Output is correct |
28 |
Correct |
65 ms |
364 KB |
Output is correct |
29 |
Correct |
67 ms |
364 KB |
Output is correct |
30 |
Correct |
70 ms |
492 KB |
Output is correct |
31 |
Correct |
65 ms |
364 KB |
Output is correct |
32 |
Correct |
64 ms |
492 KB |
Output is correct |
33 |
Correct |
66 ms |
492 KB |
Output is correct |
34 |
Correct |
67 ms |
364 KB |
Output is correct |
35 |
Correct |
65 ms |
364 KB |
Output is correct |
36 |
Correct |
66 ms |
364 KB |
Output is correct |
37 |
Correct |
128 ms |
492 KB |
Output is correct |
38 |
Correct |
140 ms |
620 KB |
Output is correct |
39 |
Correct |
179 ms |
748 KB |
Output is correct |
40 |
Correct |
176 ms |
560 KB |
Output is correct |
41 |
Correct |
202 ms |
620 KB |
Output is correct |
42 |
Correct |
163 ms |
620 KB |
Output is correct |
43 |
Correct |
161 ms |
748 KB |
Output is correct |
44 |
Correct |
167 ms |
748 KB |
Output is correct |
45 |
Correct |
166 ms |
748 KB |
Output is correct |
46 |
Correct |
177 ms |
512 KB |
Output is correct |
47 |
Correct |
171 ms |
620 KB |
Output is correct |
48 |
Correct |
168 ms |
748 KB |
Output is correct |
49 |
Correct |
170 ms |
620 KB |
Output is correct |
50 |
Correct |
163 ms |
620 KB |
Output is correct |
51 |
Correct |
3 ms |
492 KB |
Output is correct |
52 |
Correct |
189 ms |
876 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
4 ms |
364 KB |
Output is correct |
2 |
Correct |
5 ms |
364 KB |
Output is correct |
3 |
Correct |
0 ms |
364 KB |
Output is correct |
4 |
Correct |
5 ms |
364 KB |
Output is correct |
5 |
Correct |
9 ms |
364 KB |
Output is correct |
6 |
Correct |
6 ms |
364 KB |
Output is correct |
7 |
Correct |
5 ms |
364 KB |
Output is correct |
8 |
Correct |
9 ms |
364 KB |
Output is correct |
9 |
Correct |
8 ms |
364 KB |
Output is correct |
10 |
Correct |
20 ms |
364 KB |
Output is correct |
11 |
Correct |
20 ms |
364 KB |
Output is correct |
12 |
Correct |
20 ms |
492 KB |
Output is correct |
13 |
Correct |
19 ms |
364 KB |
Output is correct |
14 |
Correct |
19 ms |
364 KB |
Output is correct |
15 |
Correct |
19 ms |
364 KB |
Output is correct |
16 |
Correct |
20 ms |
492 KB |
Output is correct |
17 |
Correct |
13 ms |
364 KB |
Output is correct |
18 |
Correct |
17 ms |
364 KB |
Output is correct |
19 |
Correct |
20 ms |
364 KB |
Output is correct |
20 |
Correct |
21 ms |
364 KB |
Output is correct |
21 |
Correct |
43 ms |
364 KB |
Output is correct |
22 |
Correct |
48 ms |
364 KB |
Output is correct |
23 |
Correct |
34 ms |
364 KB |
Output is correct |
24 |
Correct |
67 ms |
364 KB |
Output is correct |
25 |
Correct |
63 ms |
464 KB |
Output is correct |
26 |
Correct |
65 ms |
492 KB |
Output is correct |
27 |
Correct |
65 ms |
364 KB |
Output is correct |
28 |
Correct |
65 ms |
364 KB |
Output is correct |
29 |
Correct |
67 ms |
364 KB |
Output is correct |
30 |
Correct |
70 ms |
492 KB |
Output is correct |
31 |
Correct |
65 ms |
364 KB |
Output is correct |
32 |
Correct |
64 ms |
492 KB |
Output is correct |
33 |
Correct |
66 ms |
492 KB |
Output is correct |
34 |
Correct |
67 ms |
364 KB |
Output is correct |
35 |
Correct |
65 ms |
364 KB |
Output is correct |
36 |
Correct |
66 ms |
364 KB |
Output is correct |
37 |
Correct |
128 ms |
492 KB |
Output is correct |
38 |
Correct |
140 ms |
620 KB |
Output is correct |
39 |
Correct |
179 ms |
748 KB |
Output is correct |
40 |
Correct |
176 ms |
560 KB |
Output is correct |
41 |
Correct |
202 ms |
620 KB |
Output is correct |
42 |
Correct |
163 ms |
620 KB |
Output is correct |
43 |
Correct |
161 ms |
748 KB |
Output is correct |
44 |
Correct |
167 ms |
748 KB |
Output is correct |
45 |
Correct |
166 ms |
748 KB |
Output is correct |
46 |
Correct |
177 ms |
512 KB |
Output is correct |
47 |
Correct |
171 ms |
620 KB |
Output is correct |
48 |
Correct |
168 ms |
748 KB |
Output is correct |
49 |
Correct |
170 ms |
620 KB |
Output is correct |
50 |
Correct |
163 ms |
620 KB |
Output is correct |
51 |
Correct |
3 ms |
492 KB |
Output is correct |
52 |
Correct |
189 ms |
876 KB |
Output is correct |
53 |
Correct |
196 ms |
740 KB |
Output is correct |
54 |
Correct |
232 ms |
748 KB |
Output is correct |
55 |
Correct |
248 ms |
1132 KB |
Output is correct |
56 |
Correct |
201 ms |
748 KB |
Output is correct |
57 |
Correct |
239 ms |
1132 KB |
Output is correct |
58 |
Correct |
235 ms |
876 KB |
Output is correct |
59 |
Correct |
230 ms |
876 KB |
Output is correct |
60 |
Correct |
6 ms |
620 KB |
Output is correct |
61 |
Correct |
235 ms |
1132 KB |
Output is correct |
62 |
Correct |
215 ms |
1004 KB |
Output is correct |
63 |
Correct |
218 ms |
1108 KB |
Output is correct |
64 |
Correct |
213 ms |
1088 KB |
Output is correct |
65 |
Correct |
220 ms |
620 KB |
Output is correct |
66 |
Correct |
214 ms |
748 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
4 ms |
364 KB |
Output is correct |
2 |
Correct |
5 ms |
364 KB |
Output is correct |
3 |
Correct |
0 ms |
364 KB |
Output is correct |
4 |
Correct |
5 ms |
364 KB |
Output is correct |
5 |
Correct |
9 ms |
364 KB |
Output is correct |
6 |
Correct |
6 ms |
364 KB |
Output is correct |
7 |
Correct |
5 ms |
364 KB |
Output is correct |
8 |
Correct |
9 ms |
364 KB |
Output is correct |
9 |
Correct |
8 ms |
364 KB |
Output is correct |
10 |
Correct |
20 ms |
364 KB |
Output is correct |
11 |
Correct |
20 ms |
364 KB |
Output is correct |
12 |
Correct |
20 ms |
492 KB |
Output is correct |
13 |
Correct |
19 ms |
364 KB |
Output is correct |
14 |
Correct |
19 ms |
364 KB |
Output is correct |
15 |
Correct |
19 ms |
364 KB |
Output is correct |
16 |
Correct |
20 ms |
492 KB |
Output is correct |
17 |
Correct |
13 ms |
364 KB |
Output is correct |
18 |
Correct |
17 ms |
364 KB |
Output is correct |
19 |
Correct |
20 ms |
364 KB |
Output is correct |
20 |
Correct |
21 ms |
364 KB |
Output is correct |
21 |
Correct |
43 ms |
364 KB |
Output is correct |
22 |
Correct |
48 ms |
364 KB |
Output is correct |
23 |
Correct |
34 ms |
364 KB |
Output is correct |
24 |
Correct |
67 ms |
364 KB |
Output is correct |
25 |
Correct |
63 ms |
464 KB |
Output is correct |
26 |
Correct |
65 ms |
492 KB |
Output is correct |
27 |
Correct |
65 ms |
364 KB |
Output is correct |
28 |
Correct |
65 ms |
364 KB |
Output is correct |
29 |
Correct |
67 ms |
364 KB |
Output is correct |
30 |
Correct |
70 ms |
492 KB |
Output is correct |
31 |
Correct |
65 ms |
364 KB |
Output is correct |
32 |
Correct |
64 ms |
492 KB |
Output is correct |
33 |
Correct |
66 ms |
492 KB |
Output is correct |
34 |
Correct |
67 ms |
364 KB |
Output is correct |
35 |
Correct |
65 ms |
364 KB |
Output is correct |
36 |
Correct |
66 ms |
364 KB |
Output is correct |
37 |
Correct |
128 ms |
492 KB |
Output is correct |
38 |
Correct |
140 ms |
620 KB |
Output is correct |
39 |
Correct |
179 ms |
748 KB |
Output is correct |
40 |
Correct |
176 ms |
560 KB |
Output is correct |
41 |
Correct |
202 ms |
620 KB |
Output is correct |
42 |
Correct |
163 ms |
620 KB |
Output is correct |
43 |
Correct |
161 ms |
748 KB |
Output is correct |
44 |
Correct |
167 ms |
748 KB |
Output is correct |
45 |
Correct |
166 ms |
748 KB |
Output is correct |
46 |
Correct |
177 ms |
512 KB |
Output is correct |
47 |
Correct |
171 ms |
620 KB |
Output is correct |
48 |
Correct |
168 ms |
748 KB |
Output is correct |
49 |
Correct |
170 ms |
620 KB |
Output is correct |
50 |
Correct |
163 ms |
620 KB |
Output is correct |
51 |
Correct |
3 ms |
492 KB |
Output is correct |
52 |
Correct |
189 ms |
876 KB |
Output is correct |
53 |
Correct |
196 ms |
740 KB |
Output is correct |
54 |
Correct |
232 ms |
748 KB |
Output is correct |
55 |
Correct |
248 ms |
1132 KB |
Output is correct |
56 |
Correct |
201 ms |
748 KB |
Output is correct |
57 |
Correct |
239 ms |
1132 KB |
Output is correct |
58 |
Correct |
235 ms |
876 KB |
Output is correct |
59 |
Correct |
230 ms |
876 KB |
Output is correct |
60 |
Correct |
6 ms |
620 KB |
Output is correct |
61 |
Correct |
235 ms |
1132 KB |
Output is correct |
62 |
Correct |
215 ms |
1004 KB |
Output is correct |
63 |
Correct |
218 ms |
1108 KB |
Output is correct |
64 |
Correct |
213 ms |
1088 KB |
Output is correct |
65 |
Correct |
220 ms |
620 KB |
Output is correct |
66 |
Correct |
214 ms |
748 KB |
Output is correct |
67 |
Correct |
266 ms |
876 KB |
Output is correct |
68 |
Correct |
16 ms |
876 KB |
Output is correct |
69 |
Correct |
352 ms |
1900 KB |
Output is correct |
70 |
Correct |
338 ms |
1260 KB |
Output is correct |
71 |
Correct |
339 ms |
1388 KB |
Output is correct |
72 |
Correct |
331 ms |
876 KB |
Output is correct |
73 |
Correct |
336 ms |
1004 KB |
Output is correct |
74 |
Correct |
357 ms |
2176 KB |
Output is correct |
75 |
Correct |
344 ms |
1644 KB |
Output is correct |
76 |
Correct |
373 ms |
2028 KB |
Output is correct |
77 |
Correct |
356 ms |
2028 KB |
Output is correct |