#pragma GCC optimize("O3,unroll-loops")
#include<bits/stdc++.h>
using namespace std;
int n,tot;
int a[505];
bitset<500005> dp;
int variante[500005],cntv;
int newv[500005],cntnew;
signed main()
{
ios_base::sync_with_stdio(0);cin.tie(0);
cin>>n;
for(int i=1;i<=n;i++)
{
cin>>a[i];
if(a[i]%2!=a[1]%2)
{
cout<<0;
return 0;
}
tot+=a[i];
}
if(tot%2==1)
{
cout<<0;
return 0;
}
for(int i=1;i<=tot;i++)
if(i%2==a[1]%2)
variante[++cntv]=i;
for(int i=0;i<=n;i++)
{
dp.reset();
dp[0]=1;
for(int j=1;j<=n;j++)
{
if(i!=j)
dp |= (dp<<a[j]);
}
if(i==0)
{
if(dp[tot/2]==0)
{
cout<<0;
return 0;
}
continue;
}
cntnew=0;
for(int j=1;j<=cntv;j++)
{
int x = variante[j];
if((tot-a[i]+x)%2==0 && dp[(tot-a[i]+x)/2])
newv[++cntnew] = x;
///tot - a[i] + x
}
cntv=cntnew;
for(int j=1;j<=cntnew;j++)
variante[j] = newv[j];
}
cout<<cntv<<"\n";
for(int i=1;i<=cntv;i++)
cout<<variante[i]<<" ";
return 0;
}
/**
3
2 2 2
*/
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
604 KB |
Output is correct |
2 |
Correct |
1 ms |
604 KB |
Output is correct |
3 |
Correct |
1 ms |
604 KB |
Output is correct |
4 |
Correct |
0 ms |
604 KB |
Output is correct |
5 |
Correct |
1 ms |
604 KB |
Output is correct |
6 |
Correct |
1 ms |
604 KB |
Output is correct |
7 |
Correct |
1 ms |
604 KB |
Output is correct |
8 |
Correct |
2 ms |
604 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
604 KB |
Output is correct |
2 |
Correct |
1 ms |
604 KB |
Output is correct |
3 |
Correct |
1 ms |
604 KB |
Output is correct |
4 |
Correct |
0 ms |
604 KB |
Output is correct |
5 |
Correct |
1 ms |
604 KB |
Output is correct |
6 |
Correct |
1 ms |
604 KB |
Output is correct |
7 |
Correct |
1 ms |
604 KB |
Output is correct |
8 |
Correct |
2 ms |
604 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
9 ms |
620 KB |
Output is correct |
11 |
Correct |
8 ms |
604 KB |
Output is correct |
12 |
Correct |
8 ms |
600 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
7 ms |
652 KB |
Output is correct |
15 |
Correct |
7 ms |
652 KB |
Output is correct |
16 |
Correct |
8 ms |
600 KB |
Output is correct |
17 |
Correct |
3 ms |
856 KB |
Output is correct |
18 |
Correct |
5 ms |
604 KB |
Output is correct |
19 |
Correct |
6 ms |
604 KB |
Output is correct |
20 |
Correct |
8 ms |
604 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
604 KB |
Output is correct |
2 |
Correct |
1 ms |
604 KB |
Output is correct |
3 |
Correct |
1 ms |
604 KB |
Output is correct |
4 |
Correct |
0 ms |
604 KB |
Output is correct |
5 |
Correct |
1 ms |
604 KB |
Output is correct |
6 |
Correct |
1 ms |
604 KB |
Output is correct |
7 |
Correct |
1 ms |
604 KB |
Output is correct |
8 |
Correct |
2 ms |
604 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
9 ms |
620 KB |
Output is correct |
11 |
Correct |
8 ms |
604 KB |
Output is correct |
12 |
Correct |
8 ms |
600 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
7 ms |
652 KB |
Output is correct |
15 |
Correct |
7 ms |
652 KB |
Output is correct |
16 |
Correct |
8 ms |
600 KB |
Output is correct |
17 |
Correct |
3 ms |
856 KB |
Output is correct |
18 |
Correct |
5 ms |
604 KB |
Output is correct |
19 |
Correct |
6 ms |
604 KB |
Output is correct |
20 |
Correct |
8 ms |
604 KB |
Output is correct |
21 |
Correct |
33 ms |
604 KB |
Output is correct |
22 |
Correct |
44 ms |
600 KB |
Output is correct |
23 |
Correct |
21 ms |
604 KB |
Output is correct |
24 |
Correct |
74 ms |
604 KB |
Output is correct |
25 |
Correct |
70 ms |
680 KB |
Output is correct |
26 |
Correct |
80 ms |
664 KB |
Output is correct |
27 |
Correct |
83 ms |
652 KB |
Output is correct |
28 |
Correct |
81 ms |
604 KB |
Output is correct |
29 |
Correct |
80 ms |
604 KB |
Output is correct |
30 |
Correct |
0 ms |
344 KB |
Output is correct |
31 |
Correct |
81 ms |
680 KB |
Output is correct |
32 |
Correct |
79 ms |
644 KB |
Output is correct |
33 |
Correct |
79 ms |
604 KB |
Output is correct |
34 |
Correct |
78 ms |
652 KB |
Output is correct |
35 |
Correct |
79 ms |
656 KB |
Output is correct |
36 |
Correct |
78 ms |
656 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
604 KB |
Output is correct |
2 |
Correct |
1 ms |
604 KB |
Output is correct |
3 |
Correct |
1 ms |
604 KB |
Output is correct |
4 |
Correct |
0 ms |
604 KB |
Output is correct |
5 |
Correct |
1 ms |
604 KB |
Output is correct |
6 |
Correct |
1 ms |
604 KB |
Output is correct |
7 |
Correct |
1 ms |
604 KB |
Output is correct |
8 |
Correct |
2 ms |
604 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
9 ms |
620 KB |
Output is correct |
11 |
Correct |
8 ms |
604 KB |
Output is correct |
12 |
Correct |
8 ms |
600 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
7 ms |
652 KB |
Output is correct |
15 |
Correct |
7 ms |
652 KB |
Output is correct |
16 |
Correct |
8 ms |
600 KB |
Output is correct |
17 |
Correct |
3 ms |
856 KB |
Output is correct |
18 |
Correct |
5 ms |
604 KB |
Output is correct |
19 |
Correct |
6 ms |
604 KB |
Output is correct |
20 |
Correct |
8 ms |
604 KB |
Output is correct |
21 |
Correct |
33 ms |
604 KB |
Output is correct |
22 |
Correct |
44 ms |
600 KB |
Output is correct |
23 |
Correct |
21 ms |
604 KB |
Output is correct |
24 |
Correct |
74 ms |
604 KB |
Output is correct |
25 |
Correct |
70 ms |
680 KB |
Output is correct |
26 |
Correct |
80 ms |
664 KB |
Output is correct |
27 |
Correct |
83 ms |
652 KB |
Output is correct |
28 |
Correct |
81 ms |
604 KB |
Output is correct |
29 |
Correct |
80 ms |
604 KB |
Output is correct |
30 |
Correct |
0 ms |
344 KB |
Output is correct |
31 |
Correct |
81 ms |
680 KB |
Output is correct |
32 |
Correct |
79 ms |
644 KB |
Output is correct |
33 |
Correct |
79 ms |
604 KB |
Output is correct |
34 |
Correct |
78 ms |
652 KB |
Output is correct |
35 |
Correct |
79 ms |
656 KB |
Output is correct |
36 |
Correct |
78 ms |
656 KB |
Output is correct |
37 |
Correct |
314 ms |
708 KB |
Output is correct |
38 |
Correct |
313 ms |
600 KB |
Output is correct |
39 |
Correct |
480 ms |
748 KB |
Output is correct |
40 |
Correct |
588 ms |
760 KB |
Output is correct |
41 |
Correct |
580 ms |
600 KB |
Output is correct |
42 |
Correct |
494 ms |
848 KB |
Output is correct |
43 |
Correct |
495 ms |
860 KB |
Output is correct |
44 |
Correct |
506 ms |
856 KB |
Output is correct |
45 |
Correct |
514 ms |
860 KB |
Output is correct |
46 |
Correct |
566 ms |
604 KB |
Output is correct |
47 |
Correct |
512 ms |
756 KB |
Output is correct |
48 |
Correct |
506 ms |
836 KB |
Output is correct |
49 |
Correct |
489 ms |
856 KB |
Output is correct |
50 |
Correct |
512 ms |
760 KB |
Output is correct |
51 |
Correct |
0 ms |
348 KB |
Output is correct |
52 |
Correct |
608 ms |
884 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
604 KB |
Output is correct |
2 |
Correct |
1 ms |
604 KB |
Output is correct |
3 |
Correct |
1 ms |
604 KB |
Output is correct |
4 |
Correct |
0 ms |
604 KB |
Output is correct |
5 |
Correct |
1 ms |
604 KB |
Output is correct |
6 |
Correct |
1 ms |
604 KB |
Output is correct |
7 |
Correct |
1 ms |
604 KB |
Output is correct |
8 |
Correct |
2 ms |
604 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
9 ms |
620 KB |
Output is correct |
11 |
Correct |
8 ms |
604 KB |
Output is correct |
12 |
Correct |
8 ms |
600 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
7 ms |
652 KB |
Output is correct |
15 |
Correct |
7 ms |
652 KB |
Output is correct |
16 |
Correct |
8 ms |
600 KB |
Output is correct |
17 |
Correct |
3 ms |
856 KB |
Output is correct |
18 |
Correct |
5 ms |
604 KB |
Output is correct |
19 |
Correct |
6 ms |
604 KB |
Output is correct |
20 |
Correct |
8 ms |
604 KB |
Output is correct |
21 |
Correct |
33 ms |
604 KB |
Output is correct |
22 |
Correct |
44 ms |
600 KB |
Output is correct |
23 |
Correct |
21 ms |
604 KB |
Output is correct |
24 |
Correct |
74 ms |
604 KB |
Output is correct |
25 |
Correct |
70 ms |
680 KB |
Output is correct |
26 |
Correct |
80 ms |
664 KB |
Output is correct |
27 |
Correct |
83 ms |
652 KB |
Output is correct |
28 |
Correct |
81 ms |
604 KB |
Output is correct |
29 |
Correct |
80 ms |
604 KB |
Output is correct |
30 |
Correct |
0 ms |
344 KB |
Output is correct |
31 |
Correct |
81 ms |
680 KB |
Output is correct |
32 |
Correct |
79 ms |
644 KB |
Output is correct |
33 |
Correct |
79 ms |
604 KB |
Output is correct |
34 |
Correct |
78 ms |
652 KB |
Output is correct |
35 |
Correct |
79 ms |
656 KB |
Output is correct |
36 |
Correct |
78 ms |
656 KB |
Output is correct |
37 |
Correct |
314 ms |
708 KB |
Output is correct |
38 |
Correct |
313 ms |
600 KB |
Output is correct |
39 |
Correct |
480 ms |
748 KB |
Output is correct |
40 |
Correct |
588 ms |
760 KB |
Output is correct |
41 |
Correct |
580 ms |
600 KB |
Output is correct |
42 |
Correct |
494 ms |
848 KB |
Output is correct |
43 |
Correct |
495 ms |
860 KB |
Output is correct |
44 |
Correct |
506 ms |
856 KB |
Output is correct |
45 |
Correct |
514 ms |
860 KB |
Output is correct |
46 |
Correct |
566 ms |
604 KB |
Output is correct |
47 |
Correct |
512 ms |
756 KB |
Output is correct |
48 |
Correct |
506 ms |
836 KB |
Output is correct |
49 |
Correct |
489 ms |
856 KB |
Output is correct |
50 |
Correct |
512 ms |
760 KB |
Output is correct |
51 |
Correct |
0 ms |
348 KB |
Output is correct |
52 |
Correct |
608 ms |
884 KB |
Output is correct |
53 |
Correct |
719 ms |
804 KB |
Output is correct |
54 |
Correct |
967 ms |
1104 KB |
Output is correct |
55 |
Execution timed out |
1014 ms |
1364 KB |
Time limit exceeded |
56 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
604 KB |
Output is correct |
2 |
Correct |
1 ms |
604 KB |
Output is correct |
3 |
Correct |
1 ms |
604 KB |
Output is correct |
4 |
Correct |
0 ms |
604 KB |
Output is correct |
5 |
Correct |
1 ms |
604 KB |
Output is correct |
6 |
Correct |
1 ms |
604 KB |
Output is correct |
7 |
Correct |
1 ms |
604 KB |
Output is correct |
8 |
Correct |
2 ms |
604 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
9 ms |
620 KB |
Output is correct |
11 |
Correct |
8 ms |
604 KB |
Output is correct |
12 |
Correct |
8 ms |
600 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
7 ms |
652 KB |
Output is correct |
15 |
Correct |
7 ms |
652 KB |
Output is correct |
16 |
Correct |
8 ms |
600 KB |
Output is correct |
17 |
Correct |
3 ms |
856 KB |
Output is correct |
18 |
Correct |
5 ms |
604 KB |
Output is correct |
19 |
Correct |
6 ms |
604 KB |
Output is correct |
20 |
Correct |
8 ms |
604 KB |
Output is correct |
21 |
Correct |
33 ms |
604 KB |
Output is correct |
22 |
Correct |
44 ms |
600 KB |
Output is correct |
23 |
Correct |
21 ms |
604 KB |
Output is correct |
24 |
Correct |
74 ms |
604 KB |
Output is correct |
25 |
Correct |
70 ms |
680 KB |
Output is correct |
26 |
Correct |
80 ms |
664 KB |
Output is correct |
27 |
Correct |
83 ms |
652 KB |
Output is correct |
28 |
Correct |
81 ms |
604 KB |
Output is correct |
29 |
Correct |
80 ms |
604 KB |
Output is correct |
30 |
Correct |
0 ms |
344 KB |
Output is correct |
31 |
Correct |
81 ms |
680 KB |
Output is correct |
32 |
Correct |
79 ms |
644 KB |
Output is correct |
33 |
Correct |
79 ms |
604 KB |
Output is correct |
34 |
Correct |
78 ms |
652 KB |
Output is correct |
35 |
Correct |
79 ms |
656 KB |
Output is correct |
36 |
Correct |
78 ms |
656 KB |
Output is correct |
37 |
Correct |
314 ms |
708 KB |
Output is correct |
38 |
Correct |
313 ms |
600 KB |
Output is correct |
39 |
Correct |
480 ms |
748 KB |
Output is correct |
40 |
Correct |
588 ms |
760 KB |
Output is correct |
41 |
Correct |
580 ms |
600 KB |
Output is correct |
42 |
Correct |
494 ms |
848 KB |
Output is correct |
43 |
Correct |
495 ms |
860 KB |
Output is correct |
44 |
Correct |
506 ms |
856 KB |
Output is correct |
45 |
Correct |
514 ms |
860 KB |
Output is correct |
46 |
Correct |
566 ms |
604 KB |
Output is correct |
47 |
Correct |
512 ms |
756 KB |
Output is correct |
48 |
Correct |
506 ms |
836 KB |
Output is correct |
49 |
Correct |
489 ms |
856 KB |
Output is correct |
50 |
Correct |
512 ms |
760 KB |
Output is correct |
51 |
Correct |
0 ms |
348 KB |
Output is correct |
52 |
Correct |
608 ms |
884 KB |
Output is correct |
53 |
Correct |
719 ms |
804 KB |
Output is correct |
54 |
Correct |
967 ms |
1104 KB |
Output is correct |
55 |
Execution timed out |
1014 ms |
1364 KB |
Time limit exceeded |
56 |
Halted |
0 ms |
0 KB |
- |