#include <bits/stdc++.h>
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>
// #pragma GCC optimize("-O3")
// #pragma GCC optimize("no-stack-protector")
// #pragma GCC optimize("fast-math")
// #pragma GCC optimize("Ofast")
// #pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx")
// #pragma GCC target("avx,avx2,fma")
// #pragma GCC optimization ("unroll-loops")
using namespace std;
#define sim template < class c
#define ris return * this
#define dor > debug & operator <<
#define eni(x) sim > typename \
enable_if<sizeof dud<c>(0) x 1, debug&>::type operator<<(c i) {
sim > struct rge { c b, e; };
sim > rge<c> range(c i, c j) { return rge<c>{i, j}; }
sim > auto dud(c* x) -> decltype(cerr << *x, 0);
sim > char dud(...);
struct debug {
#ifndef LOCAL
~debug() { cerr << endl; }
eni(!=) cerr << boolalpha << i; ris; }
eni(==) ris << range(begin(i), end(i)); }
sim, class b dor(pair < b, c > d) {
ris << "(" << d.first << ", " << d.second << ")";
}
sim dor(rge<c> d) {
*this << "[";
for (auto it = d.b; it != d.e; ++it)
*this << ", " + 2 * (it == d.b) << *it;
ris << "]";
}
#else
sim dor(const c&) { ris; }
#endif
};
#define imie(...) " [" << #__VA_ARGS__ ": " << (__VA_ARGS__) << "] "
//using namespace __gnu_pbds;
#define fast_io ios_base::sync_with_stdio(false);cin.tie(nullptr);cout.tie(nullptr);
#define vec vector
#define getin freopen("input.txt","r",stdin);
#define getout ofstream cout("output.txt");
#define getfiles getin;getout
#define m_p make_pair
#define f first
#define sz(x) (int)x.size()
#define pw(x) (1LL<<x)
#define pb push_back
#define endl '\n'
#define all(x) x.begin(),x.end()
#define rall(x) x.rbegin(),x.rend()
#define s second
typedef pair<int,int> pii;
typedef long long ll;
typedef unsigned long long ull;
typedef pair<ll,ll> pll;
typedef pair<ll,int> pli;
typedef pair<int,ll> pil;
typedef long double ld;
template<typename T>bool umax(T &a,const T &b) {return (a<b?a=b,1:0);}
template<typename T>bool umin(T &a,const T &b) {return (a>b?a=b,1:0);}
const int N=501;
ull dp[N*N];
void add(int x){
for(int i=N*N-x-1;i>=0;i--){
dp[i+x]+=dp[i];
}
}
void del(int x){
for(int i=x;i<N*N;i++){
dp[i]-=dp[i-x];
}
}
signed main(){
fast_io;
//ifstream cin("bootfall.in");
// ofstream cout("bootfall.out");
int n;
cin>>n;
vec<int>a(n);
int s=0;
for(auto &z : a)
cin>>z,s+=z;
dp[0]=1;
for(int i=0;i<n;i++)
add(a[i]);
vec<int>cand;
assert(s<N*N);
for(int i=1;i<N*N;i++)
cand.pb(i);
if(s%2){
cout<<0;
return 0;
}
if(!dp[s/2]){
cout<<0;
return 0;
}
vec<int>nw;
for(int i=0;i<n;i++){
del(a[i]);
s-=a[i];
if(i)
add(a[i-1]),s+=a[i-1];
nw.clear();
for(auto &x : cand){
s+=x;
int need=s/2;
need-=x;
// debug()<<imie(x)imie(need);
if(need>=0 && dp[need] && s%2==0){
nw.pb(x);
// debug()<<imie(x)imie(need);
}
s-=x;
}
swap(nw,cand);
// cout<<endl;
}
cout<<sz(cand)<<endl;
for(auto &z : cand)
cout<<z<<' ';
return 0;
}
/*
1
4 2
0110
*/
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
6 ms |
3404 KB |
Output is correct |
2 |
Correct |
6 ms |
3404 KB |
Output is correct |
3 |
Correct |
4 ms |
3404 KB |
Output is correct |
4 |
Correct |
5 ms |
3404 KB |
Output is correct |
5 |
Correct |
9 ms |
3404 KB |
Output is correct |
6 |
Correct |
7 ms |
3404 KB |
Output is correct |
7 |
Correct |
6 ms |
3404 KB |
Output is correct |
8 |
Correct |
9 ms |
3404 KB |
Output is correct |
9 |
Correct |
8 ms |
3392 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
6 ms |
3404 KB |
Output is correct |
2 |
Correct |
6 ms |
3404 KB |
Output is correct |
3 |
Correct |
4 ms |
3404 KB |
Output is correct |
4 |
Correct |
5 ms |
3404 KB |
Output is correct |
5 |
Correct |
9 ms |
3404 KB |
Output is correct |
6 |
Correct |
7 ms |
3404 KB |
Output is correct |
7 |
Correct |
6 ms |
3404 KB |
Output is correct |
8 |
Correct |
9 ms |
3404 KB |
Output is correct |
9 |
Correct |
8 ms |
3392 KB |
Output is correct |
10 |
Correct |
17 ms |
3388 KB |
Output is correct |
11 |
Correct |
19 ms |
3404 KB |
Output is correct |
12 |
Correct |
17 ms |
3400 KB |
Output is correct |
13 |
Correct |
16 ms |
3432 KB |
Output is correct |
14 |
Correct |
17 ms |
3404 KB |
Output is correct |
15 |
Correct |
18 ms |
3396 KB |
Output is correct |
16 |
Correct |
19 ms |
3404 KB |
Output is correct |
17 |
Correct |
13 ms |
3404 KB |
Output is correct |
18 |
Correct |
14 ms |
3404 KB |
Output is correct |
19 |
Correct |
16 ms |
3404 KB |
Output is correct |
20 |
Correct |
17 ms |
3404 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
6 ms |
3404 KB |
Output is correct |
2 |
Correct |
6 ms |
3404 KB |
Output is correct |
3 |
Correct |
4 ms |
3404 KB |
Output is correct |
4 |
Correct |
5 ms |
3404 KB |
Output is correct |
5 |
Correct |
9 ms |
3404 KB |
Output is correct |
6 |
Correct |
7 ms |
3404 KB |
Output is correct |
7 |
Correct |
6 ms |
3404 KB |
Output is correct |
8 |
Correct |
9 ms |
3404 KB |
Output is correct |
9 |
Correct |
8 ms |
3392 KB |
Output is correct |
10 |
Correct |
17 ms |
3388 KB |
Output is correct |
11 |
Correct |
19 ms |
3404 KB |
Output is correct |
12 |
Correct |
17 ms |
3400 KB |
Output is correct |
13 |
Correct |
16 ms |
3432 KB |
Output is correct |
14 |
Correct |
17 ms |
3404 KB |
Output is correct |
15 |
Correct |
18 ms |
3396 KB |
Output is correct |
16 |
Correct |
19 ms |
3404 KB |
Output is correct |
17 |
Correct |
13 ms |
3404 KB |
Output is correct |
18 |
Correct |
14 ms |
3404 KB |
Output is correct |
19 |
Correct |
16 ms |
3404 KB |
Output is correct |
20 |
Correct |
17 ms |
3404 KB |
Output is correct |
21 |
Correct |
35 ms |
3396 KB |
Output is correct |
22 |
Correct |
37 ms |
3424 KB |
Output is correct |
23 |
Correct |
29 ms |
3428 KB |
Output is correct |
24 |
Correct |
46 ms |
3404 KB |
Output is correct |
25 |
Correct |
46 ms |
3428 KB |
Output is correct |
26 |
Correct |
50 ms |
3500 KB |
Output is correct |
27 |
Correct |
47 ms |
3432 KB |
Output is correct |
28 |
Correct |
58 ms |
3404 KB |
Output is correct |
29 |
Correct |
47 ms |
3404 KB |
Output is correct |
30 |
Correct |
47 ms |
3432 KB |
Output is correct |
31 |
Correct |
48 ms |
3424 KB |
Output is correct |
32 |
Correct |
48 ms |
3396 KB |
Output is correct |
33 |
Correct |
46 ms |
3432 KB |
Output is correct |
34 |
Correct |
49 ms |
3432 KB |
Output is correct |
35 |
Correct |
49 ms |
3432 KB |
Output is correct |
36 |
Correct |
49 ms |
3404 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
6 ms |
3404 KB |
Output is correct |
2 |
Correct |
6 ms |
3404 KB |
Output is correct |
3 |
Correct |
4 ms |
3404 KB |
Output is correct |
4 |
Correct |
5 ms |
3404 KB |
Output is correct |
5 |
Correct |
9 ms |
3404 KB |
Output is correct |
6 |
Correct |
7 ms |
3404 KB |
Output is correct |
7 |
Correct |
6 ms |
3404 KB |
Output is correct |
8 |
Correct |
9 ms |
3404 KB |
Output is correct |
9 |
Correct |
8 ms |
3392 KB |
Output is correct |
10 |
Correct |
17 ms |
3388 KB |
Output is correct |
11 |
Correct |
19 ms |
3404 KB |
Output is correct |
12 |
Correct |
17 ms |
3400 KB |
Output is correct |
13 |
Correct |
16 ms |
3432 KB |
Output is correct |
14 |
Correct |
17 ms |
3404 KB |
Output is correct |
15 |
Correct |
18 ms |
3396 KB |
Output is correct |
16 |
Correct |
19 ms |
3404 KB |
Output is correct |
17 |
Correct |
13 ms |
3404 KB |
Output is correct |
18 |
Correct |
14 ms |
3404 KB |
Output is correct |
19 |
Correct |
16 ms |
3404 KB |
Output is correct |
20 |
Correct |
17 ms |
3404 KB |
Output is correct |
21 |
Correct |
35 ms |
3396 KB |
Output is correct |
22 |
Correct |
37 ms |
3424 KB |
Output is correct |
23 |
Correct |
29 ms |
3428 KB |
Output is correct |
24 |
Correct |
46 ms |
3404 KB |
Output is correct |
25 |
Correct |
46 ms |
3428 KB |
Output is correct |
26 |
Correct |
50 ms |
3500 KB |
Output is correct |
27 |
Correct |
47 ms |
3432 KB |
Output is correct |
28 |
Correct |
58 ms |
3404 KB |
Output is correct |
29 |
Correct |
47 ms |
3404 KB |
Output is correct |
30 |
Correct |
47 ms |
3432 KB |
Output is correct |
31 |
Correct |
48 ms |
3424 KB |
Output is correct |
32 |
Correct |
48 ms |
3396 KB |
Output is correct |
33 |
Correct |
46 ms |
3432 KB |
Output is correct |
34 |
Correct |
49 ms |
3432 KB |
Output is correct |
35 |
Correct |
49 ms |
3432 KB |
Output is correct |
36 |
Correct |
49 ms |
3404 KB |
Output is correct |
37 |
Correct |
95 ms |
3428 KB |
Output is correct |
38 |
Correct |
96 ms |
3420 KB |
Output is correct |
39 |
Correct |
112 ms |
3384 KB |
Output is correct |
40 |
Correct |
134 ms |
3468 KB |
Output is correct |
41 |
Correct |
121 ms |
3404 KB |
Output is correct |
42 |
Correct |
122 ms |
3396 KB |
Output is correct |
43 |
Correct |
125 ms |
3616 KB |
Output is correct |
44 |
Correct |
130 ms |
3644 KB |
Output is correct |
45 |
Correct |
128 ms |
3632 KB |
Output is correct |
46 |
Correct |
127 ms |
3420 KB |
Output is correct |
47 |
Correct |
141 ms |
3424 KB |
Output is correct |
48 |
Correct |
131 ms |
3540 KB |
Output is correct |
49 |
Correct |
119 ms |
3428 KB |
Output is correct |
50 |
Correct |
128 ms |
3420 KB |
Output is correct |
51 |
Correct |
40 ms |
3420 KB |
Output is correct |
52 |
Correct |
142 ms |
3664 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
6 ms |
3404 KB |
Output is correct |
2 |
Correct |
6 ms |
3404 KB |
Output is correct |
3 |
Correct |
4 ms |
3404 KB |
Output is correct |
4 |
Correct |
5 ms |
3404 KB |
Output is correct |
5 |
Correct |
9 ms |
3404 KB |
Output is correct |
6 |
Correct |
7 ms |
3404 KB |
Output is correct |
7 |
Correct |
6 ms |
3404 KB |
Output is correct |
8 |
Correct |
9 ms |
3404 KB |
Output is correct |
9 |
Correct |
8 ms |
3392 KB |
Output is correct |
10 |
Correct |
17 ms |
3388 KB |
Output is correct |
11 |
Correct |
19 ms |
3404 KB |
Output is correct |
12 |
Correct |
17 ms |
3400 KB |
Output is correct |
13 |
Correct |
16 ms |
3432 KB |
Output is correct |
14 |
Correct |
17 ms |
3404 KB |
Output is correct |
15 |
Correct |
18 ms |
3396 KB |
Output is correct |
16 |
Correct |
19 ms |
3404 KB |
Output is correct |
17 |
Correct |
13 ms |
3404 KB |
Output is correct |
18 |
Correct |
14 ms |
3404 KB |
Output is correct |
19 |
Correct |
16 ms |
3404 KB |
Output is correct |
20 |
Correct |
17 ms |
3404 KB |
Output is correct |
21 |
Correct |
35 ms |
3396 KB |
Output is correct |
22 |
Correct |
37 ms |
3424 KB |
Output is correct |
23 |
Correct |
29 ms |
3428 KB |
Output is correct |
24 |
Correct |
46 ms |
3404 KB |
Output is correct |
25 |
Correct |
46 ms |
3428 KB |
Output is correct |
26 |
Correct |
50 ms |
3500 KB |
Output is correct |
27 |
Correct |
47 ms |
3432 KB |
Output is correct |
28 |
Correct |
58 ms |
3404 KB |
Output is correct |
29 |
Correct |
47 ms |
3404 KB |
Output is correct |
30 |
Correct |
47 ms |
3432 KB |
Output is correct |
31 |
Correct |
48 ms |
3424 KB |
Output is correct |
32 |
Correct |
48 ms |
3396 KB |
Output is correct |
33 |
Correct |
46 ms |
3432 KB |
Output is correct |
34 |
Correct |
49 ms |
3432 KB |
Output is correct |
35 |
Correct |
49 ms |
3432 KB |
Output is correct |
36 |
Correct |
49 ms |
3404 KB |
Output is correct |
37 |
Correct |
95 ms |
3428 KB |
Output is correct |
38 |
Correct |
96 ms |
3420 KB |
Output is correct |
39 |
Correct |
112 ms |
3384 KB |
Output is correct |
40 |
Correct |
134 ms |
3468 KB |
Output is correct |
41 |
Correct |
121 ms |
3404 KB |
Output is correct |
42 |
Correct |
122 ms |
3396 KB |
Output is correct |
43 |
Correct |
125 ms |
3616 KB |
Output is correct |
44 |
Correct |
130 ms |
3644 KB |
Output is correct |
45 |
Correct |
128 ms |
3632 KB |
Output is correct |
46 |
Correct |
127 ms |
3420 KB |
Output is correct |
47 |
Correct |
141 ms |
3424 KB |
Output is correct |
48 |
Correct |
131 ms |
3540 KB |
Output is correct |
49 |
Correct |
119 ms |
3428 KB |
Output is correct |
50 |
Correct |
128 ms |
3420 KB |
Output is correct |
51 |
Correct |
40 ms |
3420 KB |
Output is correct |
52 |
Correct |
142 ms |
3664 KB |
Output is correct |
53 |
Correct |
150 ms |
3604 KB |
Output is correct |
54 |
Correct |
182 ms |
3616 KB |
Output is correct |
55 |
Correct |
197 ms |
3928 KB |
Output is correct |
56 |
Correct |
164 ms |
3624 KB |
Output is correct |
57 |
Correct |
214 ms |
4052 KB |
Output is correct |
58 |
Correct |
182 ms |
3672 KB |
Output is correct |
59 |
Correct |
188 ms |
4040 KB |
Output is correct |
60 |
Correct |
56 ms |
3396 KB |
Output is correct |
61 |
Correct |
200 ms |
3924 KB |
Output is correct |
62 |
Correct |
180 ms |
4056 KB |
Output is correct |
63 |
Correct |
190 ms |
4044 KB |
Output is correct |
64 |
Correct |
178 ms |
3976 KB |
Output is correct |
65 |
Correct |
143 ms |
3416 KB |
Output is correct |
66 |
Correct |
171 ms |
3416 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
6 ms |
3404 KB |
Output is correct |
2 |
Correct |
6 ms |
3404 KB |
Output is correct |
3 |
Correct |
4 ms |
3404 KB |
Output is correct |
4 |
Correct |
5 ms |
3404 KB |
Output is correct |
5 |
Correct |
9 ms |
3404 KB |
Output is correct |
6 |
Correct |
7 ms |
3404 KB |
Output is correct |
7 |
Correct |
6 ms |
3404 KB |
Output is correct |
8 |
Correct |
9 ms |
3404 KB |
Output is correct |
9 |
Correct |
8 ms |
3392 KB |
Output is correct |
10 |
Correct |
17 ms |
3388 KB |
Output is correct |
11 |
Correct |
19 ms |
3404 KB |
Output is correct |
12 |
Correct |
17 ms |
3400 KB |
Output is correct |
13 |
Correct |
16 ms |
3432 KB |
Output is correct |
14 |
Correct |
17 ms |
3404 KB |
Output is correct |
15 |
Correct |
18 ms |
3396 KB |
Output is correct |
16 |
Correct |
19 ms |
3404 KB |
Output is correct |
17 |
Correct |
13 ms |
3404 KB |
Output is correct |
18 |
Correct |
14 ms |
3404 KB |
Output is correct |
19 |
Correct |
16 ms |
3404 KB |
Output is correct |
20 |
Correct |
17 ms |
3404 KB |
Output is correct |
21 |
Correct |
35 ms |
3396 KB |
Output is correct |
22 |
Correct |
37 ms |
3424 KB |
Output is correct |
23 |
Correct |
29 ms |
3428 KB |
Output is correct |
24 |
Correct |
46 ms |
3404 KB |
Output is correct |
25 |
Correct |
46 ms |
3428 KB |
Output is correct |
26 |
Correct |
50 ms |
3500 KB |
Output is correct |
27 |
Correct |
47 ms |
3432 KB |
Output is correct |
28 |
Correct |
58 ms |
3404 KB |
Output is correct |
29 |
Correct |
47 ms |
3404 KB |
Output is correct |
30 |
Correct |
47 ms |
3432 KB |
Output is correct |
31 |
Correct |
48 ms |
3424 KB |
Output is correct |
32 |
Correct |
48 ms |
3396 KB |
Output is correct |
33 |
Correct |
46 ms |
3432 KB |
Output is correct |
34 |
Correct |
49 ms |
3432 KB |
Output is correct |
35 |
Correct |
49 ms |
3432 KB |
Output is correct |
36 |
Correct |
49 ms |
3404 KB |
Output is correct |
37 |
Correct |
95 ms |
3428 KB |
Output is correct |
38 |
Correct |
96 ms |
3420 KB |
Output is correct |
39 |
Correct |
112 ms |
3384 KB |
Output is correct |
40 |
Correct |
134 ms |
3468 KB |
Output is correct |
41 |
Correct |
121 ms |
3404 KB |
Output is correct |
42 |
Correct |
122 ms |
3396 KB |
Output is correct |
43 |
Correct |
125 ms |
3616 KB |
Output is correct |
44 |
Correct |
130 ms |
3644 KB |
Output is correct |
45 |
Correct |
128 ms |
3632 KB |
Output is correct |
46 |
Correct |
127 ms |
3420 KB |
Output is correct |
47 |
Correct |
141 ms |
3424 KB |
Output is correct |
48 |
Correct |
131 ms |
3540 KB |
Output is correct |
49 |
Correct |
119 ms |
3428 KB |
Output is correct |
50 |
Correct |
128 ms |
3420 KB |
Output is correct |
51 |
Correct |
40 ms |
3420 KB |
Output is correct |
52 |
Correct |
142 ms |
3664 KB |
Output is correct |
53 |
Correct |
150 ms |
3604 KB |
Output is correct |
54 |
Correct |
182 ms |
3616 KB |
Output is correct |
55 |
Correct |
197 ms |
3928 KB |
Output is correct |
56 |
Correct |
164 ms |
3624 KB |
Output is correct |
57 |
Correct |
214 ms |
4052 KB |
Output is correct |
58 |
Correct |
182 ms |
3672 KB |
Output is correct |
59 |
Correct |
188 ms |
4040 KB |
Output is correct |
60 |
Correct |
56 ms |
3396 KB |
Output is correct |
61 |
Correct |
200 ms |
3924 KB |
Output is correct |
62 |
Correct |
180 ms |
4056 KB |
Output is correct |
63 |
Correct |
190 ms |
4044 KB |
Output is correct |
64 |
Correct |
178 ms |
3976 KB |
Output is correct |
65 |
Correct |
143 ms |
3416 KB |
Output is correct |
66 |
Correct |
171 ms |
3416 KB |
Output is correct |
67 |
Correct |
227 ms |
3800 KB |
Output is correct |
68 |
Correct |
76 ms |
3380 KB |
Output is correct |
69 |
Correct |
351 ms |
4804 KB |
Output is correct |
70 |
Correct |
348 ms |
4056 KB |
Output is correct |
71 |
Correct |
299 ms |
4164 KB |
Output is correct |
72 |
Correct |
223 ms |
3664 KB |
Output is correct |
73 |
Correct |
238 ms |
3656 KB |
Output is correct |
74 |
Correct |
356 ms |
4924 KB |
Output is correct |
75 |
Correct |
327 ms |
4552 KB |
Output is correct |
76 |
Correct |
354 ms |
4840 KB |
Output is correct |
77 |
Correct |
355 ms |
4952 KB |
Output is correct |