#include <bits/stdc++.h>
// #pragma GCC optimize ("Ofast,unroll-loops")
// #pragma GCC target ("avx2")
using namespace std;
typedef long long ll;
typedef pair<int, int> pp;
#define er(args ...) cerr << __LINE__ << ": ", err(new istringstream(string(#args)), args), cerr << endl
#define per(i,r,l) for(int i = (r); i >= (l); i--)
#define rep(i,l,r) for(int i = (l); i < (r); i++)
#define all(x) x.begin(), x.end()
#define sz(x) (int)(x).size()
#define pb push_back
#define ss second
#define ff first
void err(istringstream *iss){}template<typename T,typename ...Args> void err(istringstream *iss,const T &_val, const Args&...args){string _name;*iss>>_name;if(_name.back()==',')_name.pop_back();cerr<<_name<<" = "<<_val<<", ",err(iss,args...);}
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
const ll mod = 1e9 + 7, maxn = 5e2+1, lg = 20, inf = ll(1e9) + 5;
ll pw(ll a,ll b,ll md=mod){if(!b)return 1;ll k=pw(a,b>>1ll);return k*k%md*(b&1ll?a:1)%md;}
int dp[maxn*maxn], tmp[maxn*maxn], is[maxn*maxn];
int main(){
cin.tie(0) -> sync_with_stdio(0);
int n; cin >> n;
vector<int> a(n);
int sum = 0;
rep(i,0,n) cin >> a[i];
int k = -1, f = 1;
rep(i,0,n){
int t = 0;
while(a[i]%2 == 0) t++, a[i] >>= 1, f *= 1 + (k == -1);
if(k == -1) k = t;
if(t - k) return cout << "0\n", 0;
sum += a[i];
}
rep(i,0,sum+1) is[i] = true;
dp[0] = 1;
rep(i,0,n) per(j,sum,a[i]) dp[j] += dp[j-a[i]], dp[j] -= dp[j]<mod?0:mod;
rep(k,0,n){
rep(i,0,sum+1) tmp[i] = dp[i];
rep(j,a[k],sum+1) tmp[j] -= tmp[j-a[k]], tmp[j] += tmp[j]<0?mod:0;
int bg = (sum - a[k] + 1)>>1;
rep(i,bg,sum+1) is[i-bg] &= (tmp[i] > 0);
rep(i,sum-bg+1,sum+1) is[i] = false;
}
// rep(k,0,n+1) rep(i,0,sum) er(k, i, dp[k][i]);
if((sum&1) || !dp[sum>>1]) return cout << "0\n", 0;
vector<int> ans;
rep(i,0,sum+1) if(is[i]) ans.pb((i<<1)+1);
cout << sz(ans) << '\n';
for(int c: ans) cout << c*f << ' ';
if(sz(ans)) cout << '\n';
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
0 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
0 ms |
340 KB |
Output is correct |
8 |
Correct |
0 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
0 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
0 ms |
340 KB |
Output is correct |
8 |
Correct |
0 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
0 ms |
340 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
0 ms |
212 KB |
Output is correct |
14 |
Correct |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
0 ms |
340 KB |
Output is correct |
16 |
Correct |
1 ms |
340 KB |
Output is correct |
17 |
Correct |
1 ms |
340 KB |
Output is correct |
18 |
Correct |
0 ms |
340 KB |
Output is correct |
19 |
Correct |
1 ms |
340 KB |
Output is correct |
20 |
Correct |
1 ms |
340 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
0 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
0 ms |
340 KB |
Output is correct |
8 |
Correct |
0 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
0 ms |
340 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
0 ms |
212 KB |
Output is correct |
14 |
Correct |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
0 ms |
340 KB |
Output is correct |
16 |
Correct |
1 ms |
340 KB |
Output is correct |
17 |
Correct |
1 ms |
340 KB |
Output is correct |
18 |
Correct |
0 ms |
340 KB |
Output is correct |
19 |
Correct |
1 ms |
340 KB |
Output is correct |
20 |
Correct |
1 ms |
340 KB |
Output is correct |
21 |
Correct |
2 ms |
340 KB |
Output is correct |
22 |
Correct |
2 ms |
340 KB |
Output is correct |
23 |
Correct |
1 ms |
340 KB |
Output is correct |
24 |
Correct |
2 ms |
340 KB |
Output is correct |
25 |
Correct |
3 ms |
468 KB |
Output is correct |
26 |
Correct |
4 ms |
468 KB |
Output is correct |
27 |
Correct |
3 ms |
340 KB |
Output is correct |
28 |
Correct |
2 ms |
340 KB |
Output is correct |
29 |
Correct |
3 ms |
340 KB |
Output is correct |
30 |
Correct |
0 ms |
212 KB |
Output is correct |
31 |
Correct |
3 ms |
468 KB |
Output is correct |
32 |
Correct |
2 ms |
340 KB |
Output is correct |
33 |
Correct |
1 ms |
340 KB |
Output is correct |
34 |
Correct |
4 ms |
340 KB |
Output is correct |
35 |
Correct |
3 ms |
340 KB |
Output is correct |
36 |
Correct |
2 ms |
340 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
0 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
0 ms |
340 KB |
Output is correct |
8 |
Correct |
0 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
0 ms |
340 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
0 ms |
212 KB |
Output is correct |
14 |
Correct |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
0 ms |
340 KB |
Output is correct |
16 |
Correct |
1 ms |
340 KB |
Output is correct |
17 |
Correct |
1 ms |
340 KB |
Output is correct |
18 |
Correct |
0 ms |
340 KB |
Output is correct |
19 |
Correct |
1 ms |
340 KB |
Output is correct |
20 |
Correct |
1 ms |
340 KB |
Output is correct |
21 |
Correct |
2 ms |
340 KB |
Output is correct |
22 |
Correct |
2 ms |
340 KB |
Output is correct |
23 |
Correct |
1 ms |
340 KB |
Output is correct |
24 |
Correct |
2 ms |
340 KB |
Output is correct |
25 |
Correct |
3 ms |
468 KB |
Output is correct |
26 |
Correct |
4 ms |
468 KB |
Output is correct |
27 |
Correct |
3 ms |
340 KB |
Output is correct |
28 |
Correct |
2 ms |
340 KB |
Output is correct |
29 |
Correct |
3 ms |
340 KB |
Output is correct |
30 |
Correct |
0 ms |
212 KB |
Output is correct |
31 |
Correct |
3 ms |
468 KB |
Output is correct |
32 |
Correct |
2 ms |
340 KB |
Output is correct |
33 |
Correct |
1 ms |
340 KB |
Output is correct |
34 |
Correct |
4 ms |
340 KB |
Output is correct |
35 |
Correct |
3 ms |
340 KB |
Output is correct |
36 |
Correct |
2 ms |
340 KB |
Output is correct |
37 |
Correct |
14 ms |
724 KB |
Output is correct |
38 |
Correct |
13 ms |
724 KB |
Output is correct |
39 |
Correct |
46 ms |
1040 KB |
Output is correct |
40 |
Correct |
31 ms |
844 KB |
Output is correct |
41 |
Correct |
36 ms |
752 KB |
Output is correct |
42 |
Correct |
27 ms |
808 KB |
Output is correct |
43 |
Correct |
50 ms |
1356 KB |
Output is correct |
44 |
Correct |
45 ms |
1368 KB |
Output is correct |
45 |
Correct |
47 ms |
1272 KB |
Output is correct |
46 |
Correct |
1 ms |
212 KB |
Output is correct |
47 |
Correct |
31 ms |
840 KB |
Output is correct |
48 |
Correct |
61 ms |
1324 KB |
Output is correct |
49 |
Correct |
49 ms |
1044 KB |
Output is correct |
50 |
Correct |
26 ms |
836 KB |
Output is correct |
51 |
Correct |
0 ms |
212 KB |
Output is correct |
52 |
Correct |
60 ms |
1520 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
0 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
0 ms |
340 KB |
Output is correct |
8 |
Correct |
0 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
0 ms |
340 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
0 ms |
212 KB |
Output is correct |
14 |
Correct |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
0 ms |
340 KB |
Output is correct |
16 |
Correct |
1 ms |
340 KB |
Output is correct |
17 |
Correct |
1 ms |
340 KB |
Output is correct |
18 |
Correct |
0 ms |
340 KB |
Output is correct |
19 |
Correct |
1 ms |
340 KB |
Output is correct |
20 |
Correct |
1 ms |
340 KB |
Output is correct |
21 |
Correct |
2 ms |
340 KB |
Output is correct |
22 |
Correct |
2 ms |
340 KB |
Output is correct |
23 |
Correct |
1 ms |
340 KB |
Output is correct |
24 |
Correct |
2 ms |
340 KB |
Output is correct |
25 |
Correct |
3 ms |
468 KB |
Output is correct |
26 |
Correct |
4 ms |
468 KB |
Output is correct |
27 |
Correct |
3 ms |
340 KB |
Output is correct |
28 |
Correct |
2 ms |
340 KB |
Output is correct |
29 |
Correct |
3 ms |
340 KB |
Output is correct |
30 |
Correct |
0 ms |
212 KB |
Output is correct |
31 |
Correct |
3 ms |
468 KB |
Output is correct |
32 |
Correct |
2 ms |
340 KB |
Output is correct |
33 |
Correct |
1 ms |
340 KB |
Output is correct |
34 |
Correct |
4 ms |
340 KB |
Output is correct |
35 |
Correct |
3 ms |
340 KB |
Output is correct |
36 |
Correct |
2 ms |
340 KB |
Output is correct |
37 |
Correct |
14 ms |
724 KB |
Output is correct |
38 |
Correct |
13 ms |
724 KB |
Output is correct |
39 |
Correct |
46 ms |
1040 KB |
Output is correct |
40 |
Correct |
31 ms |
844 KB |
Output is correct |
41 |
Correct |
36 ms |
752 KB |
Output is correct |
42 |
Correct |
27 ms |
808 KB |
Output is correct |
43 |
Correct |
50 ms |
1356 KB |
Output is correct |
44 |
Correct |
45 ms |
1368 KB |
Output is correct |
45 |
Correct |
47 ms |
1272 KB |
Output is correct |
46 |
Correct |
1 ms |
212 KB |
Output is correct |
47 |
Correct |
31 ms |
840 KB |
Output is correct |
48 |
Correct |
61 ms |
1324 KB |
Output is correct |
49 |
Correct |
49 ms |
1044 KB |
Output is correct |
50 |
Correct |
26 ms |
836 KB |
Output is correct |
51 |
Correct |
0 ms |
212 KB |
Output is correct |
52 |
Correct |
60 ms |
1520 KB |
Output is correct |
53 |
Correct |
45 ms |
1120 KB |
Output is correct |
54 |
Correct |
63 ms |
1356 KB |
Output is correct |
55 |
Correct |
132 ms |
2140 KB |
Output is correct |
56 |
Correct |
53 ms |
1356 KB |
Output is correct |
57 |
Correct |
129 ms |
2260 KB |
Output is correct |
58 |
Correct |
70 ms |
1424 KB |
Output is correct |
59 |
Correct |
96 ms |
1688 KB |
Output is correct |
60 |
Correct |
1 ms |
212 KB |
Output is correct |
61 |
Correct |
103 ms |
1904 KB |
Output is correct |
62 |
Correct |
115 ms |
1984 KB |
Output is correct |
63 |
Correct |
115 ms |
2256 KB |
Output is correct |
64 |
Correct |
103 ms |
2040 KB |
Output is correct |
65 |
Correct |
12 ms |
468 KB |
Output is correct |
66 |
Correct |
58 ms |
952 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
0 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
0 ms |
340 KB |
Output is correct |
8 |
Correct |
0 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
0 ms |
340 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
0 ms |
212 KB |
Output is correct |
14 |
Correct |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
0 ms |
340 KB |
Output is correct |
16 |
Correct |
1 ms |
340 KB |
Output is correct |
17 |
Correct |
1 ms |
340 KB |
Output is correct |
18 |
Correct |
0 ms |
340 KB |
Output is correct |
19 |
Correct |
1 ms |
340 KB |
Output is correct |
20 |
Correct |
1 ms |
340 KB |
Output is correct |
21 |
Correct |
2 ms |
340 KB |
Output is correct |
22 |
Correct |
2 ms |
340 KB |
Output is correct |
23 |
Correct |
1 ms |
340 KB |
Output is correct |
24 |
Correct |
2 ms |
340 KB |
Output is correct |
25 |
Correct |
3 ms |
468 KB |
Output is correct |
26 |
Correct |
4 ms |
468 KB |
Output is correct |
27 |
Correct |
3 ms |
340 KB |
Output is correct |
28 |
Correct |
2 ms |
340 KB |
Output is correct |
29 |
Correct |
3 ms |
340 KB |
Output is correct |
30 |
Correct |
0 ms |
212 KB |
Output is correct |
31 |
Correct |
3 ms |
468 KB |
Output is correct |
32 |
Correct |
2 ms |
340 KB |
Output is correct |
33 |
Correct |
1 ms |
340 KB |
Output is correct |
34 |
Correct |
4 ms |
340 KB |
Output is correct |
35 |
Correct |
3 ms |
340 KB |
Output is correct |
36 |
Correct |
2 ms |
340 KB |
Output is correct |
37 |
Correct |
14 ms |
724 KB |
Output is correct |
38 |
Correct |
13 ms |
724 KB |
Output is correct |
39 |
Correct |
46 ms |
1040 KB |
Output is correct |
40 |
Correct |
31 ms |
844 KB |
Output is correct |
41 |
Correct |
36 ms |
752 KB |
Output is correct |
42 |
Correct |
27 ms |
808 KB |
Output is correct |
43 |
Correct |
50 ms |
1356 KB |
Output is correct |
44 |
Correct |
45 ms |
1368 KB |
Output is correct |
45 |
Correct |
47 ms |
1272 KB |
Output is correct |
46 |
Correct |
1 ms |
212 KB |
Output is correct |
47 |
Correct |
31 ms |
840 KB |
Output is correct |
48 |
Correct |
61 ms |
1324 KB |
Output is correct |
49 |
Correct |
49 ms |
1044 KB |
Output is correct |
50 |
Correct |
26 ms |
836 KB |
Output is correct |
51 |
Correct |
0 ms |
212 KB |
Output is correct |
52 |
Correct |
60 ms |
1520 KB |
Output is correct |
53 |
Correct |
45 ms |
1120 KB |
Output is correct |
54 |
Correct |
63 ms |
1356 KB |
Output is correct |
55 |
Correct |
132 ms |
2140 KB |
Output is correct |
56 |
Correct |
53 ms |
1356 KB |
Output is correct |
57 |
Correct |
129 ms |
2260 KB |
Output is correct |
58 |
Correct |
70 ms |
1424 KB |
Output is correct |
59 |
Correct |
96 ms |
1688 KB |
Output is correct |
60 |
Correct |
1 ms |
212 KB |
Output is correct |
61 |
Correct |
103 ms |
1904 KB |
Output is correct |
62 |
Correct |
115 ms |
1984 KB |
Output is correct |
63 |
Correct |
115 ms |
2256 KB |
Output is correct |
64 |
Correct |
103 ms |
2040 KB |
Output is correct |
65 |
Correct |
12 ms |
468 KB |
Output is correct |
66 |
Correct |
58 ms |
952 KB |
Output is correct |
67 |
Correct |
107 ms |
1780 KB |
Output is correct |
68 |
Correct |
0 ms |
212 KB |
Output is correct |
69 |
Correct |
345 ms |
3872 KB |
Output is correct |
70 |
Correct |
196 ms |
2616 KB |
Output is correct |
71 |
Correct |
196 ms |
2548 KB |
Output is correct |
72 |
Correct |
1 ms |
212 KB |
Output is correct |
73 |
Correct |
1 ms |
340 KB |
Output is correct |
74 |
Correct |
393 ms |
4116 KB |
Output is correct |
75 |
Correct |
259 ms |
3384 KB |
Output is correct |
76 |
Correct |
397 ms |
4300 KB |
Output is correct |
77 |
Correct |
403 ms |
4384 KB |
Output is correct |