#include <bits/stdc++.h>
#define ll long long int
using namespace std;
const int N = 505, M = 260010;
const int B = 1e9 + 7;
int n;
int a[N];
bool F[M], f;
int S;
int DP[M];
int dp[M];
int ans[M], ANS[M];
int V[M], np;
int main()
{
cin>>n;
for (int i = 1; i <= n; i++){
cin>>a[i];
S += a[i];
}
sort (a + 1, a + n + 1);
bool ok = 0;
for (int i = 2; i <= n; i++)
if ((a[i] - a[i - 1]) % 2 == 1)
ok = 1;
if (S % 2 == 1)
ok = 1;
if (ok){
cout<<0<<endl;
return 0;
}
F[0] = 1;
DP[0] = 1;
for (int i = 1; i <= n; i++){
for (int j = S; j >= a[i]; j--)
if (F[j - a[i]]){
F[j] = 1;
DP[j] += DP[j - a[i]];
if (DP[j] > B)
DP[j] -= B;
}
}
if (F[S / 2] == 0){
cout<<0<<endl;
return 0;
}
for (int i = 0; i <= S; i++)
if (F[i])
V[np++] = i;
for (int I = 1; I <= n; ++I){
int i;
for (int i1 = 0; i1 < np; ++i1){
i = V[i1];
dp[i] = DP[i];
ans[abs (S - 2 * i - a[I])] = 0;
}
for (int i1 = 0; i1 < np; ++i1){
i = V[i1];
f = 1;
if (i >= a[I]){
f = 0;
dp[i] -= dp[i - a[I]];
if (dp[i] < 0)
dp[i] += B;
if (dp[i])
f = 1;
}
if (f && ans[abs (S - a[I] - 2 * i)] == 0){
ans[abs (S - a[I] - 2 * i)] = 1;
ANS[abs (S - a[I] - 2 * i)]++;
}
}
}
np = 0;
for (int i = 1; i <= S; i++)
if (ANS[i] == n)
V[np++] = i;
cout<<np<<endl;
for (int i = 0; i < np; i++)
cout<<V[i]<<" ";
cout<<endl;
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
2 ms |
376 KB |
Output is correct |
7 |
Correct |
2 ms |
504 KB |
Output is correct |
8 |
Correct |
2 ms |
376 KB |
Output is correct |
9 |
Correct |
2 ms |
252 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
2 ms |
376 KB |
Output is correct |
7 |
Correct |
2 ms |
504 KB |
Output is correct |
8 |
Correct |
2 ms |
376 KB |
Output is correct |
9 |
Correct |
2 ms |
252 KB |
Output is correct |
10 |
Correct |
2 ms |
376 KB |
Output is correct |
11 |
Correct |
2 ms |
376 KB |
Output is correct |
12 |
Correct |
2 ms |
376 KB |
Output is correct |
13 |
Correct |
2 ms |
380 KB |
Output is correct |
14 |
Correct |
2 ms |
376 KB |
Output is correct |
15 |
Correct |
2 ms |
380 KB |
Output is correct |
16 |
Correct |
2 ms |
376 KB |
Output is correct |
17 |
Correct |
2 ms |
376 KB |
Output is correct |
18 |
Correct |
2 ms |
376 KB |
Output is correct |
19 |
Correct |
2 ms |
376 KB |
Output is correct |
20 |
Correct |
2 ms |
376 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
2 ms |
376 KB |
Output is correct |
7 |
Correct |
2 ms |
504 KB |
Output is correct |
8 |
Correct |
2 ms |
376 KB |
Output is correct |
9 |
Correct |
2 ms |
252 KB |
Output is correct |
10 |
Correct |
2 ms |
376 KB |
Output is correct |
11 |
Correct |
2 ms |
376 KB |
Output is correct |
12 |
Correct |
2 ms |
376 KB |
Output is correct |
13 |
Correct |
2 ms |
380 KB |
Output is correct |
14 |
Correct |
2 ms |
376 KB |
Output is correct |
15 |
Correct |
2 ms |
380 KB |
Output is correct |
16 |
Correct |
2 ms |
376 KB |
Output is correct |
17 |
Correct |
2 ms |
376 KB |
Output is correct |
18 |
Correct |
2 ms |
376 KB |
Output is correct |
19 |
Correct |
2 ms |
376 KB |
Output is correct |
20 |
Correct |
2 ms |
376 KB |
Output is correct |
21 |
Correct |
10 ms |
376 KB |
Output is correct |
22 |
Correct |
4 ms |
476 KB |
Output is correct |
23 |
Correct |
3 ms |
376 KB |
Output is correct |
24 |
Correct |
6 ms |
504 KB |
Output is correct |
25 |
Correct |
9 ms |
504 KB |
Output is correct |
26 |
Correct |
10 ms |
504 KB |
Output is correct |
27 |
Correct |
6 ms |
504 KB |
Output is correct |
28 |
Correct |
6 ms |
504 KB |
Output is correct |
29 |
Correct |
7 ms |
504 KB |
Output is correct |
30 |
Correct |
2 ms |
256 KB |
Output is correct |
31 |
Correct |
9 ms |
632 KB |
Output is correct |
32 |
Correct |
7 ms |
504 KB |
Output is correct |
33 |
Correct |
3 ms |
504 KB |
Output is correct |
34 |
Correct |
3 ms |
504 KB |
Output is correct |
35 |
Correct |
6 ms |
504 KB |
Output is correct |
36 |
Correct |
7 ms |
504 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
2 ms |
376 KB |
Output is correct |
7 |
Correct |
2 ms |
504 KB |
Output is correct |
8 |
Correct |
2 ms |
376 KB |
Output is correct |
9 |
Correct |
2 ms |
252 KB |
Output is correct |
10 |
Correct |
2 ms |
376 KB |
Output is correct |
11 |
Correct |
2 ms |
376 KB |
Output is correct |
12 |
Correct |
2 ms |
376 KB |
Output is correct |
13 |
Correct |
2 ms |
380 KB |
Output is correct |
14 |
Correct |
2 ms |
376 KB |
Output is correct |
15 |
Correct |
2 ms |
380 KB |
Output is correct |
16 |
Correct |
2 ms |
376 KB |
Output is correct |
17 |
Correct |
2 ms |
376 KB |
Output is correct |
18 |
Correct |
2 ms |
376 KB |
Output is correct |
19 |
Correct |
2 ms |
376 KB |
Output is correct |
20 |
Correct |
2 ms |
376 KB |
Output is correct |
21 |
Correct |
10 ms |
376 KB |
Output is correct |
22 |
Correct |
4 ms |
476 KB |
Output is correct |
23 |
Correct |
3 ms |
376 KB |
Output is correct |
24 |
Correct |
6 ms |
504 KB |
Output is correct |
25 |
Correct |
9 ms |
504 KB |
Output is correct |
26 |
Correct |
10 ms |
504 KB |
Output is correct |
27 |
Correct |
6 ms |
504 KB |
Output is correct |
28 |
Correct |
6 ms |
504 KB |
Output is correct |
29 |
Correct |
7 ms |
504 KB |
Output is correct |
30 |
Correct |
2 ms |
256 KB |
Output is correct |
31 |
Correct |
9 ms |
632 KB |
Output is correct |
32 |
Correct |
7 ms |
504 KB |
Output is correct |
33 |
Correct |
3 ms |
504 KB |
Output is correct |
34 |
Correct |
3 ms |
504 KB |
Output is correct |
35 |
Correct |
6 ms |
504 KB |
Output is correct |
36 |
Correct |
7 ms |
504 KB |
Output is correct |
37 |
Correct |
44 ms |
760 KB |
Output is correct |
38 |
Correct |
46 ms |
888 KB |
Output is correct |
39 |
Correct |
14 ms |
1400 KB |
Output is correct |
40 |
Correct |
99 ms |
1148 KB |
Output is correct |
41 |
Correct |
18 ms |
1608 KB |
Output is correct |
42 |
Correct |
88 ms |
1012 KB |
Output is correct |
43 |
Correct |
152 ms |
1572 KB |
Output is correct |
44 |
Correct |
159 ms |
1664 KB |
Output is correct |
45 |
Correct |
158 ms |
1580 KB |
Output is correct |
46 |
Correct |
57 ms |
1016 KB |
Output is correct |
47 |
Correct |
94 ms |
1144 KB |
Output is correct |
48 |
Correct |
144 ms |
1624 KB |
Output is correct |
49 |
Correct |
98 ms |
1592 KB |
Output is correct |
50 |
Correct |
98 ms |
1116 KB |
Output is correct |
51 |
Correct |
2 ms |
376 KB |
Output is correct |
52 |
Correct |
197 ms |
1884 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
2 ms |
376 KB |
Output is correct |
7 |
Correct |
2 ms |
504 KB |
Output is correct |
8 |
Correct |
2 ms |
376 KB |
Output is correct |
9 |
Correct |
2 ms |
252 KB |
Output is correct |
10 |
Correct |
2 ms |
376 KB |
Output is correct |
11 |
Correct |
2 ms |
376 KB |
Output is correct |
12 |
Correct |
2 ms |
376 KB |
Output is correct |
13 |
Correct |
2 ms |
380 KB |
Output is correct |
14 |
Correct |
2 ms |
376 KB |
Output is correct |
15 |
Correct |
2 ms |
380 KB |
Output is correct |
16 |
Correct |
2 ms |
376 KB |
Output is correct |
17 |
Correct |
2 ms |
376 KB |
Output is correct |
18 |
Correct |
2 ms |
376 KB |
Output is correct |
19 |
Correct |
2 ms |
376 KB |
Output is correct |
20 |
Correct |
2 ms |
376 KB |
Output is correct |
21 |
Correct |
10 ms |
376 KB |
Output is correct |
22 |
Correct |
4 ms |
476 KB |
Output is correct |
23 |
Correct |
3 ms |
376 KB |
Output is correct |
24 |
Correct |
6 ms |
504 KB |
Output is correct |
25 |
Correct |
9 ms |
504 KB |
Output is correct |
26 |
Correct |
10 ms |
504 KB |
Output is correct |
27 |
Correct |
6 ms |
504 KB |
Output is correct |
28 |
Correct |
6 ms |
504 KB |
Output is correct |
29 |
Correct |
7 ms |
504 KB |
Output is correct |
30 |
Correct |
2 ms |
256 KB |
Output is correct |
31 |
Correct |
9 ms |
632 KB |
Output is correct |
32 |
Correct |
7 ms |
504 KB |
Output is correct |
33 |
Correct |
3 ms |
504 KB |
Output is correct |
34 |
Correct |
3 ms |
504 KB |
Output is correct |
35 |
Correct |
6 ms |
504 KB |
Output is correct |
36 |
Correct |
7 ms |
504 KB |
Output is correct |
37 |
Correct |
44 ms |
760 KB |
Output is correct |
38 |
Correct |
46 ms |
888 KB |
Output is correct |
39 |
Correct |
14 ms |
1400 KB |
Output is correct |
40 |
Correct |
99 ms |
1148 KB |
Output is correct |
41 |
Correct |
18 ms |
1608 KB |
Output is correct |
42 |
Correct |
88 ms |
1012 KB |
Output is correct |
43 |
Correct |
152 ms |
1572 KB |
Output is correct |
44 |
Correct |
159 ms |
1664 KB |
Output is correct |
45 |
Correct |
158 ms |
1580 KB |
Output is correct |
46 |
Correct |
57 ms |
1016 KB |
Output is correct |
47 |
Correct |
94 ms |
1144 KB |
Output is correct |
48 |
Correct |
144 ms |
1624 KB |
Output is correct |
49 |
Correct |
98 ms |
1592 KB |
Output is correct |
50 |
Correct |
98 ms |
1116 KB |
Output is correct |
51 |
Correct |
2 ms |
376 KB |
Output is correct |
52 |
Correct |
197 ms |
1884 KB |
Output is correct |
53 |
Correct |
158 ms |
1400 KB |
Output is correct |
54 |
Correct |
225 ms |
1656 KB |
Output is correct |
55 |
Correct |
416 ms |
2888 KB |
Output is correct |
56 |
Correct |
196 ms |
1788 KB |
Output is correct |
57 |
Correct |
450 ms |
3064 KB |
Output is correct |
58 |
Correct |
248 ms |
1792 KB |
Output is correct |
59 |
Correct |
301 ms |
2096 KB |
Output is correct |
60 |
Correct |
2 ms |
404 KB |
Output is correct |
61 |
Correct |
346 ms |
2312 KB |
Output is correct |
62 |
Correct |
354 ms |
2552 KB |
Output is correct |
63 |
Correct |
380 ms |
2808 KB |
Output is correct |
64 |
Correct |
354 ms |
2852 KB |
Output is correct |
65 |
Correct |
31 ms |
1116 KB |
Output is correct |
66 |
Correct |
60 ms |
1272 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
2 ms |
376 KB |
Output is correct |
7 |
Correct |
2 ms |
504 KB |
Output is correct |
8 |
Correct |
2 ms |
376 KB |
Output is correct |
9 |
Correct |
2 ms |
252 KB |
Output is correct |
10 |
Correct |
2 ms |
376 KB |
Output is correct |
11 |
Correct |
2 ms |
376 KB |
Output is correct |
12 |
Correct |
2 ms |
376 KB |
Output is correct |
13 |
Correct |
2 ms |
380 KB |
Output is correct |
14 |
Correct |
2 ms |
376 KB |
Output is correct |
15 |
Correct |
2 ms |
380 KB |
Output is correct |
16 |
Correct |
2 ms |
376 KB |
Output is correct |
17 |
Correct |
2 ms |
376 KB |
Output is correct |
18 |
Correct |
2 ms |
376 KB |
Output is correct |
19 |
Correct |
2 ms |
376 KB |
Output is correct |
20 |
Correct |
2 ms |
376 KB |
Output is correct |
21 |
Correct |
10 ms |
376 KB |
Output is correct |
22 |
Correct |
4 ms |
476 KB |
Output is correct |
23 |
Correct |
3 ms |
376 KB |
Output is correct |
24 |
Correct |
6 ms |
504 KB |
Output is correct |
25 |
Correct |
9 ms |
504 KB |
Output is correct |
26 |
Correct |
10 ms |
504 KB |
Output is correct |
27 |
Correct |
6 ms |
504 KB |
Output is correct |
28 |
Correct |
6 ms |
504 KB |
Output is correct |
29 |
Correct |
7 ms |
504 KB |
Output is correct |
30 |
Correct |
2 ms |
256 KB |
Output is correct |
31 |
Correct |
9 ms |
632 KB |
Output is correct |
32 |
Correct |
7 ms |
504 KB |
Output is correct |
33 |
Correct |
3 ms |
504 KB |
Output is correct |
34 |
Correct |
3 ms |
504 KB |
Output is correct |
35 |
Correct |
6 ms |
504 KB |
Output is correct |
36 |
Correct |
7 ms |
504 KB |
Output is correct |
37 |
Correct |
44 ms |
760 KB |
Output is correct |
38 |
Correct |
46 ms |
888 KB |
Output is correct |
39 |
Correct |
14 ms |
1400 KB |
Output is correct |
40 |
Correct |
99 ms |
1148 KB |
Output is correct |
41 |
Correct |
18 ms |
1608 KB |
Output is correct |
42 |
Correct |
88 ms |
1012 KB |
Output is correct |
43 |
Correct |
152 ms |
1572 KB |
Output is correct |
44 |
Correct |
159 ms |
1664 KB |
Output is correct |
45 |
Correct |
158 ms |
1580 KB |
Output is correct |
46 |
Correct |
57 ms |
1016 KB |
Output is correct |
47 |
Correct |
94 ms |
1144 KB |
Output is correct |
48 |
Correct |
144 ms |
1624 KB |
Output is correct |
49 |
Correct |
98 ms |
1592 KB |
Output is correct |
50 |
Correct |
98 ms |
1116 KB |
Output is correct |
51 |
Correct |
2 ms |
376 KB |
Output is correct |
52 |
Correct |
197 ms |
1884 KB |
Output is correct |
53 |
Correct |
158 ms |
1400 KB |
Output is correct |
54 |
Correct |
225 ms |
1656 KB |
Output is correct |
55 |
Correct |
416 ms |
2888 KB |
Output is correct |
56 |
Correct |
196 ms |
1788 KB |
Output is correct |
57 |
Correct |
450 ms |
3064 KB |
Output is correct |
58 |
Correct |
248 ms |
1792 KB |
Output is correct |
59 |
Correct |
301 ms |
2096 KB |
Output is correct |
60 |
Correct |
2 ms |
404 KB |
Output is correct |
61 |
Correct |
346 ms |
2312 KB |
Output is correct |
62 |
Correct |
354 ms |
2552 KB |
Output is correct |
63 |
Correct |
380 ms |
2808 KB |
Output is correct |
64 |
Correct |
354 ms |
2852 KB |
Output is correct |
65 |
Correct |
31 ms |
1116 KB |
Output is correct |
66 |
Correct |
60 ms |
1272 KB |
Output is correct |
67 |
Correct |
366 ms |
2160 KB |
Output is correct |
68 |
Correct |
52 ms |
888 KB |
Output is correct |
69 |
Execution timed out |
1077 ms |
4700 KB |
Time limit exceeded |
70 |
Halted |
0 ms |
0 KB |
- |