#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
#include <algorithm>
#include <cctype>
#include <cmath>
#include <cstdio>
#include <cstring>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include <functional>
#include <iomanip>
#include <iostream>
#include <iterator>
#include <list>
#include <map>
#include <numeric>
#include <queue>
#include <random>
#include <set>
#include <sstream>
#include <stack>
#include <string>
#include <unordered_map>
#include <unordered_set>
#include <vector>
#ifdef DEBUG
#include <time.h>
#endif
#define all(a) (a).begin(), (a).end()
#define rev(a) (a).rbegin(), (a).rend()
#define F first
#define S second
int recur_depth = 0;
#ifdef DEBUG
#define dbg(x) \
{ \
++recur_depth; \
auto x_ = x; \
--recur_depth; \
cerr << string(recur_depth, '\t') << "\e[91m" << __func__ << ":" \
<< __LINE__ << "\t" << #x << " = " << x_ << "\e[39m" << endl; \
}
#else
#define dbg(x)
#endif
using namespace std;
using namespace __gnu_pbds;
typedef pair<int, int> ii;
typedef long long ll;
typedef long double ld;
typedef pair<ll, ll> llll;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef vector<pair<int, int>> vii;
typedef vector<vii> vvii;
typedef vector<ll> vl;
typedef vector<vl> vvl;
typedef vector<pair<ll, ll>> vll;
typedef vector<vll> vvll;
typedef vector<bool> vb;
template <class type1>
using ordered_set = tree<type1, null_type, less<type1>, rb_tree_tag,
tree_order_statistics_node_update>;
template <typename A, typename B>
ostream &operator<<(ostream &os, const pair<A, B> &p) {
return os << '(' << p.first << ", " << p.second << ')';
}
template <typename T_container, typename T = typename enable_if<
!is_same<T_container, string>::value,
typename T_container::value_type>::type>
ostream &operator<<(ostream &os, const T_container &v) {
os << '{';
string sep;
for (const T &x : v)
os << sep << x, sep = ", ";
return os << '}';
}
const ll MOD = 1e9 + 7;
// const ll MOD = 998244353;
const ll INF = 1e9;
const ld EPS = 1e-9;
void solve() {
ll n; cin >> n;
vl a(n); for (ll &x : a) cin >> x;
vl dp(505 * 505), cnt(505 * 505);
auto add = [&](ll x) {
for (ll i=500 * 500; i>=x; i--) dp[i] += dp[i - x], dp[i] %= MOD;
};
auto rm = [&](ll x) {
for (ll i=x; i<=500 * 500; i++) dp[i] -= dp[i - x], dp[i] %= MOD, dp[i] += MOD, dp[i] %= MOD;
};
dp[0] = 1;
for (ll i=0; i<n; i++) add(a[i]);
ll s = accumulate(all(a), 0LL);
if (s % 2 == 1 || dp[s / 2] == 0) {
cout << "0\n"; return;
}
for (ll i=0; i<n; i++) {
rm(a[i]);
s -= a[i];
for (ll v=0; v<=s / 2; v++) if (dp[v] > 0) cnt[s - 2 * v]++;
add(a[i]);
s += a[i];
}
vl ans;
for (ll i=1; i<=500 * 500; i++) if (cnt[i] == n) ans.push_back(i);
cout << ans.size() << "\n";
for (ll &x : ans) cout << x << ' ';
cout << "\n";
}
int main() {
ios_base::sync_with_stdio(0);
cin.tie(NULL);
clock_t start = clock();
int test_cases = 1;
// cin >> test_cases;
while (test_cases--)
solve();
#ifdef DEBUG
cerr << fixed << setprecision(10)
<< "\nTime Taken: " << (double)(clock() - start) / CLOCKS_PER_SEC
<< "s\n";
#endif
return 0;
}
Compilation message
bootfall.cpp: In function 'int main()':
bootfall.cpp:137:11: warning: unused variable 'start' [-Wunused-variable]
137 | clock_t start = clock();
| ^~~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
10 ms |
4440 KB |
Output is correct |
2 |
Correct |
8 ms |
4444 KB |
Output is correct |
3 |
Correct |
3 ms |
4444 KB |
Output is correct |
4 |
Correct |
6 ms |
4464 KB |
Output is correct |
5 |
Correct |
15 ms |
4444 KB |
Output is correct |
6 |
Correct |
10 ms |
4444 KB |
Output is correct |
7 |
Correct |
8 ms |
4444 KB |
Output is correct |
8 |
Correct |
15 ms |
4440 KB |
Output is correct |
9 |
Correct |
13 ms |
4444 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
10 ms |
4440 KB |
Output is correct |
2 |
Correct |
8 ms |
4444 KB |
Output is correct |
3 |
Correct |
3 ms |
4444 KB |
Output is correct |
4 |
Correct |
6 ms |
4464 KB |
Output is correct |
5 |
Correct |
15 ms |
4444 KB |
Output is correct |
6 |
Correct |
10 ms |
4444 KB |
Output is correct |
7 |
Correct |
8 ms |
4444 KB |
Output is correct |
8 |
Correct |
15 ms |
4440 KB |
Output is correct |
9 |
Correct |
13 ms |
4444 KB |
Output is correct |
10 |
Correct |
34 ms |
4444 KB |
Output is correct |
11 |
Correct |
41 ms |
4472 KB |
Output is correct |
12 |
Correct |
35 ms |
4696 KB |
Output is correct |
13 |
Correct |
33 ms |
4460 KB |
Output is correct |
14 |
Correct |
34 ms |
4444 KB |
Output is correct |
15 |
Correct |
42 ms |
4696 KB |
Output is correct |
16 |
Correct |
43 ms |
4444 KB |
Output is correct |
17 |
Correct |
23 ms |
4440 KB |
Output is correct |
18 |
Correct |
30 ms |
4444 KB |
Output is correct |
19 |
Correct |
33 ms |
4460 KB |
Output is correct |
20 |
Correct |
35 ms |
4444 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
10 ms |
4440 KB |
Output is correct |
2 |
Correct |
8 ms |
4444 KB |
Output is correct |
3 |
Correct |
3 ms |
4444 KB |
Output is correct |
4 |
Correct |
6 ms |
4464 KB |
Output is correct |
5 |
Correct |
15 ms |
4444 KB |
Output is correct |
6 |
Correct |
10 ms |
4444 KB |
Output is correct |
7 |
Correct |
8 ms |
4444 KB |
Output is correct |
8 |
Correct |
15 ms |
4440 KB |
Output is correct |
9 |
Correct |
13 ms |
4444 KB |
Output is correct |
10 |
Correct |
34 ms |
4444 KB |
Output is correct |
11 |
Correct |
41 ms |
4472 KB |
Output is correct |
12 |
Correct |
35 ms |
4696 KB |
Output is correct |
13 |
Correct |
33 ms |
4460 KB |
Output is correct |
14 |
Correct |
34 ms |
4444 KB |
Output is correct |
15 |
Correct |
42 ms |
4696 KB |
Output is correct |
16 |
Correct |
43 ms |
4444 KB |
Output is correct |
17 |
Correct |
23 ms |
4440 KB |
Output is correct |
18 |
Correct |
30 ms |
4444 KB |
Output is correct |
19 |
Correct |
33 ms |
4460 KB |
Output is correct |
20 |
Correct |
35 ms |
4444 KB |
Output is correct |
21 |
Correct |
73 ms |
4444 KB |
Output is correct |
22 |
Correct |
89 ms |
4688 KB |
Output is correct |
23 |
Correct |
58 ms |
4440 KB |
Output is correct |
24 |
Correct |
107 ms |
4444 KB |
Output is correct |
25 |
Correct |
103 ms |
4456 KB |
Output is correct |
26 |
Correct |
109 ms |
4444 KB |
Output is correct |
27 |
Correct |
108 ms |
4448 KB |
Output is correct |
28 |
Correct |
108 ms |
4440 KB |
Output is correct |
29 |
Correct |
112 ms |
4440 KB |
Output is correct |
30 |
Correct |
112 ms |
4444 KB |
Output is correct |
31 |
Correct |
110 ms |
4444 KB |
Output is correct |
32 |
Correct |
110 ms |
4444 KB |
Output is correct |
33 |
Correct |
108 ms |
4444 KB |
Output is correct |
34 |
Correct |
110 ms |
4444 KB |
Output is correct |
35 |
Correct |
114 ms |
4444 KB |
Output is correct |
36 |
Correct |
114 ms |
4448 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
10 ms |
4440 KB |
Output is correct |
2 |
Correct |
8 ms |
4444 KB |
Output is correct |
3 |
Correct |
3 ms |
4444 KB |
Output is correct |
4 |
Correct |
6 ms |
4464 KB |
Output is correct |
5 |
Correct |
15 ms |
4444 KB |
Output is correct |
6 |
Correct |
10 ms |
4444 KB |
Output is correct |
7 |
Correct |
8 ms |
4444 KB |
Output is correct |
8 |
Correct |
15 ms |
4440 KB |
Output is correct |
9 |
Correct |
13 ms |
4444 KB |
Output is correct |
10 |
Correct |
34 ms |
4444 KB |
Output is correct |
11 |
Correct |
41 ms |
4472 KB |
Output is correct |
12 |
Correct |
35 ms |
4696 KB |
Output is correct |
13 |
Correct |
33 ms |
4460 KB |
Output is correct |
14 |
Correct |
34 ms |
4444 KB |
Output is correct |
15 |
Correct |
42 ms |
4696 KB |
Output is correct |
16 |
Correct |
43 ms |
4444 KB |
Output is correct |
17 |
Correct |
23 ms |
4440 KB |
Output is correct |
18 |
Correct |
30 ms |
4444 KB |
Output is correct |
19 |
Correct |
33 ms |
4460 KB |
Output is correct |
20 |
Correct |
35 ms |
4444 KB |
Output is correct |
21 |
Correct |
73 ms |
4444 KB |
Output is correct |
22 |
Correct |
89 ms |
4688 KB |
Output is correct |
23 |
Correct |
58 ms |
4440 KB |
Output is correct |
24 |
Correct |
107 ms |
4444 KB |
Output is correct |
25 |
Correct |
103 ms |
4456 KB |
Output is correct |
26 |
Correct |
109 ms |
4444 KB |
Output is correct |
27 |
Correct |
108 ms |
4448 KB |
Output is correct |
28 |
Correct |
108 ms |
4440 KB |
Output is correct |
29 |
Correct |
112 ms |
4440 KB |
Output is correct |
30 |
Correct |
112 ms |
4444 KB |
Output is correct |
31 |
Correct |
110 ms |
4444 KB |
Output is correct |
32 |
Correct |
110 ms |
4444 KB |
Output is correct |
33 |
Correct |
108 ms |
4444 KB |
Output is correct |
34 |
Correct |
110 ms |
4444 KB |
Output is correct |
35 |
Correct |
114 ms |
4444 KB |
Output is correct |
36 |
Correct |
114 ms |
4448 KB |
Output is correct |
37 |
Correct |
215 ms |
4688 KB |
Output is correct |
38 |
Correct |
216 ms |
4464 KB |
Output is correct |
39 |
Correct |
269 ms |
4444 KB |
Output is correct |
40 |
Correct |
293 ms |
4688 KB |
Output is correct |
41 |
Correct |
303 ms |
4444 KB |
Output is correct |
42 |
Correct |
272 ms |
4688 KB |
Output is correct |
43 |
Correct |
268 ms |
5072 KB |
Output is correct |
44 |
Correct |
271 ms |
4824 KB |
Output is correct |
45 |
Correct |
275 ms |
4820 KB |
Output is correct |
46 |
Correct |
292 ms |
4444 KB |
Output is correct |
47 |
Correct |
275 ms |
4712 KB |
Output is correct |
48 |
Correct |
278 ms |
4828 KB |
Output is correct |
49 |
Correct |
272 ms |
4692 KB |
Output is correct |
50 |
Correct |
282 ms |
4700 KB |
Output is correct |
51 |
Correct |
70 ms |
4448 KB |
Output is correct |
52 |
Correct |
297 ms |
4832 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
10 ms |
4440 KB |
Output is correct |
2 |
Correct |
8 ms |
4444 KB |
Output is correct |
3 |
Correct |
3 ms |
4444 KB |
Output is correct |
4 |
Correct |
6 ms |
4464 KB |
Output is correct |
5 |
Correct |
15 ms |
4444 KB |
Output is correct |
6 |
Correct |
10 ms |
4444 KB |
Output is correct |
7 |
Correct |
8 ms |
4444 KB |
Output is correct |
8 |
Correct |
15 ms |
4440 KB |
Output is correct |
9 |
Correct |
13 ms |
4444 KB |
Output is correct |
10 |
Correct |
34 ms |
4444 KB |
Output is correct |
11 |
Correct |
41 ms |
4472 KB |
Output is correct |
12 |
Correct |
35 ms |
4696 KB |
Output is correct |
13 |
Correct |
33 ms |
4460 KB |
Output is correct |
14 |
Correct |
34 ms |
4444 KB |
Output is correct |
15 |
Correct |
42 ms |
4696 KB |
Output is correct |
16 |
Correct |
43 ms |
4444 KB |
Output is correct |
17 |
Correct |
23 ms |
4440 KB |
Output is correct |
18 |
Correct |
30 ms |
4444 KB |
Output is correct |
19 |
Correct |
33 ms |
4460 KB |
Output is correct |
20 |
Correct |
35 ms |
4444 KB |
Output is correct |
21 |
Correct |
73 ms |
4444 KB |
Output is correct |
22 |
Correct |
89 ms |
4688 KB |
Output is correct |
23 |
Correct |
58 ms |
4440 KB |
Output is correct |
24 |
Correct |
107 ms |
4444 KB |
Output is correct |
25 |
Correct |
103 ms |
4456 KB |
Output is correct |
26 |
Correct |
109 ms |
4444 KB |
Output is correct |
27 |
Correct |
108 ms |
4448 KB |
Output is correct |
28 |
Correct |
108 ms |
4440 KB |
Output is correct |
29 |
Correct |
112 ms |
4440 KB |
Output is correct |
30 |
Correct |
112 ms |
4444 KB |
Output is correct |
31 |
Correct |
110 ms |
4444 KB |
Output is correct |
32 |
Correct |
110 ms |
4444 KB |
Output is correct |
33 |
Correct |
108 ms |
4444 KB |
Output is correct |
34 |
Correct |
110 ms |
4444 KB |
Output is correct |
35 |
Correct |
114 ms |
4444 KB |
Output is correct |
36 |
Correct |
114 ms |
4448 KB |
Output is correct |
37 |
Correct |
215 ms |
4688 KB |
Output is correct |
38 |
Correct |
216 ms |
4464 KB |
Output is correct |
39 |
Correct |
269 ms |
4444 KB |
Output is correct |
40 |
Correct |
293 ms |
4688 KB |
Output is correct |
41 |
Correct |
303 ms |
4444 KB |
Output is correct |
42 |
Correct |
272 ms |
4688 KB |
Output is correct |
43 |
Correct |
268 ms |
5072 KB |
Output is correct |
44 |
Correct |
271 ms |
4824 KB |
Output is correct |
45 |
Correct |
275 ms |
4820 KB |
Output is correct |
46 |
Correct |
292 ms |
4444 KB |
Output is correct |
47 |
Correct |
275 ms |
4712 KB |
Output is correct |
48 |
Correct |
278 ms |
4828 KB |
Output is correct |
49 |
Correct |
272 ms |
4692 KB |
Output is correct |
50 |
Correct |
282 ms |
4700 KB |
Output is correct |
51 |
Correct |
70 ms |
4448 KB |
Output is correct |
52 |
Correct |
297 ms |
4832 KB |
Output is correct |
53 |
Correct |
332 ms |
4828 KB |
Output is correct |
54 |
Correct |
400 ms |
4836 KB |
Output is correct |
55 |
Correct |
397 ms |
5104 KB |
Output is correct |
56 |
Correct |
335 ms |
4816 KB |
Output is correct |
57 |
Correct |
391 ms |
5328 KB |
Output is correct |
58 |
Correct |
420 ms |
4816 KB |
Output is correct |
59 |
Correct |
384 ms |
5332 KB |
Output is correct |
60 |
Correct |
98 ms |
4440 KB |
Output is correct |
61 |
Correct |
394 ms |
4964 KB |
Output is correct |
62 |
Correct |
353 ms |
5072 KB |
Output is correct |
63 |
Correct |
361 ms |
5088 KB |
Output is correct |
64 |
Correct |
345 ms |
5088 KB |
Output is correct |
65 |
Correct |
348 ms |
4452 KB |
Output is correct |
66 |
Correct |
337 ms |
4468 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
10 ms |
4440 KB |
Output is correct |
2 |
Correct |
8 ms |
4444 KB |
Output is correct |
3 |
Correct |
3 ms |
4444 KB |
Output is correct |
4 |
Correct |
6 ms |
4464 KB |
Output is correct |
5 |
Correct |
15 ms |
4444 KB |
Output is correct |
6 |
Correct |
10 ms |
4444 KB |
Output is correct |
7 |
Correct |
8 ms |
4444 KB |
Output is correct |
8 |
Correct |
15 ms |
4440 KB |
Output is correct |
9 |
Correct |
13 ms |
4444 KB |
Output is correct |
10 |
Correct |
34 ms |
4444 KB |
Output is correct |
11 |
Correct |
41 ms |
4472 KB |
Output is correct |
12 |
Correct |
35 ms |
4696 KB |
Output is correct |
13 |
Correct |
33 ms |
4460 KB |
Output is correct |
14 |
Correct |
34 ms |
4444 KB |
Output is correct |
15 |
Correct |
42 ms |
4696 KB |
Output is correct |
16 |
Correct |
43 ms |
4444 KB |
Output is correct |
17 |
Correct |
23 ms |
4440 KB |
Output is correct |
18 |
Correct |
30 ms |
4444 KB |
Output is correct |
19 |
Correct |
33 ms |
4460 KB |
Output is correct |
20 |
Correct |
35 ms |
4444 KB |
Output is correct |
21 |
Correct |
73 ms |
4444 KB |
Output is correct |
22 |
Correct |
89 ms |
4688 KB |
Output is correct |
23 |
Correct |
58 ms |
4440 KB |
Output is correct |
24 |
Correct |
107 ms |
4444 KB |
Output is correct |
25 |
Correct |
103 ms |
4456 KB |
Output is correct |
26 |
Correct |
109 ms |
4444 KB |
Output is correct |
27 |
Correct |
108 ms |
4448 KB |
Output is correct |
28 |
Correct |
108 ms |
4440 KB |
Output is correct |
29 |
Correct |
112 ms |
4440 KB |
Output is correct |
30 |
Correct |
112 ms |
4444 KB |
Output is correct |
31 |
Correct |
110 ms |
4444 KB |
Output is correct |
32 |
Correct |
110 ms |
4444 KB |
Output is correct |
33 |
Correct |
108 ms |
4444 KB |
Output is correct |
34 |
Correct |
110 ms |
4444 KB |
Output is correct |
35 |
Correct |
114 ms |
4444 KB |
Output is correct |
36 |
Correct |
114 ms |
4448 KB |
Output is correct |
37 |
Correct |
215 ms |
4688 KB |
Output is correct |
38 |
Correct |
216 ms |
4464 KB |
Output is correct |
39 |
Correct |
269 ms |
4444 KB |
Output is correct |
40 |
Correct |
293 ms |
4688 KB |
Output is correct |
41 |
Correct |
303 ms |
4444 KB |
Output is correct |
42 |
Correct |
272 ms |
4688 KB |
Output is correct |
43 |
Correct |
268 ms |
5072 KB |
Output is correct |
44 |
Correct |
271 ms |
4824 KB |
Output is correct |
45 |
Correct |
275 ms |
4820 KB |
Output is correct |
46 |
Correct |
292 ms |
4444 KB |
Output is correct |
47 |
Correct |
275 ms |
4712 KB |
Output is correct |
48 |
Correct |
278 ms |
4828 KB |
Output is correct |
49 |
Correct |
272 ms |
4692 KB |
Output is correct |
50 |
Correct |
282 ms |
4700 KB |
Output is correct |
51 |
Correct |
70 ms |
4448 KB |
Output is correct |
52 |
Correct |
297 ms |
4832 KB |
Output is correct |
53 |
Correct |
332 ms |
4828 KB |
Output is correct |
54 |
Correct |
400 ms |
4836 KB |
Output is correct |
55 |
Correct |
397 ms |
5104 KB |
Output is correct |
56 |
Correct |
335 ms |
4816 KB |
Output is correct |
57 |
Correct |
391 ms |
5328 KB |
Output is correct |
58 |
Correct |
420 ms |
4816 KB |
Output is correct |
59 |
Correct |
384 ms |
5332 KB |
Output is correct |
60 |
Correct |
98 ms |
4440 KB |
Output is correct |
61 |
Correct |
394 ms |
4964 KB |
Output is correct |
62 |
Correct |
353 ms |
5072 KB |
Output is correct |
63 |
Correct |
361 ms |
5088 KB |
Output is correct |
64 |
Correct |
345 ms |
5088 KB |
Output is correct |
65 |
Correct |
348 ms |
4452 KB |
Output is correct |
66 |
Correct |
337 ms |
4468 KB |
Output is correct |
67 |
Correct |
445 ms |
5088 KB |
Output is correct |
68 |
Correct |
141 ms |
4444 KB |
Output is correct |
69 |
Correct |
570 ms |
5936 KB |
Output is correct |
70 |
Correct |
559 ms |
5344 KB |
Output is correct |
71 |
Correct |
555 ms |
5356 KB |
Output is correct |
72 |
Correct |
571 ms |
4444 KB |
Output is correct |
73 |
Correct |
556 ms |
4448 KB |
Output is correct |
74 |
Correct |
572 ms |
6112 KB |
Output is correct |
75 |
Correct |
574 ms |
5844 KB |
Output is correct |
76 |
Correct |
580 ms |
5848 KB |
Output is correct |
77 |
Correct |
574 ms |
6120 KB |
Output is correct |