#pragma GCC optimize("Ofast")
#pragma GCC target("avx,avx2,fma")
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#define ordered_set tree <pair <int, int>, null_type, less <pair <int, int> >, rb_tree_tag, tree_order_statistics_node_update>
using namespace __gnu_pbds;
#define ll long long
#define db double
#define pb push_back
#define ppb pop_back
#define fi first
#define se second
#define mp make_pair
#define size(x) (int)(x).size()
#define all(x) (x).begin(), (x).end()
#define low_b lower_bound
#define endl "\n"
//#define int long long
using namespace std;
void dout() {
cerr << endl;
}
template <typename Head, typename... Tail>
void dout(Head H, Tail... T) {
cerr << H << ' ';
dout(T...);
}
//mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
typedef pair <int, int> pii;
const int N = 272, M = 72901;
int n, a[N], total;
bitset <M> p[N], s[N], res, ans, tmp;
void dbg(bitset <M> & b) {
for (int i = 0; i < M; i++) {
cout << b[i];
}
cout << endl;
}
void solve(int tc) {
// check for (int i = 0; i < n; j++)
cin >> n;
p[0][0] = 1;
for (int i = 1; i <= n; i++) {
cin >> a[i];
total += a[i];
p[i] = p[i - 1];
p[i] |= (p[i] << a[i]);
}
if ((total & 1) || !p[n][total >> 1]) {
cout << 0;
return;
}
s[n + 1][0] = 1;
for (int i = n; i >= 1; i--) {
s[i] = s[i + 1];
s[i] |= (s[i] << a[i]);
}
int w;
ans.set();
for (int i = 1; i <= n; i++) {
tmp = s[i + 1];
for (int j = 1; j < M; j++) {
if (p[i - 1][j]) {
tmp |= (s[i + 1] << j);
}
}
res.reset();
w = total - a[i];
for (int j = (w & 1); j <= w; j += 2) {
if (tmp[w + j >> 1] || tmp[w - j >> 1]) {
res[j] = 1;
}
}
ans &= res;
}
cout << ans.count() << endl;
for (int i = 0; i < M; i++) {
if (ans[i]) {
cout << i << " ";
}
}
}
signed main() {
ios_base::sync_with_stdio(false);
cin.tie(NULL);
// freopen("input.txt", "r", stdin);
// freopen("output.txt", "w", stdout);
int tc = 1;
// cin >> tc;
for (int i = 0; i < tc; i++) {
solve(i);
// cleanup();
}
}
Compilation message
bootfall.cpp: In function 'void solve(int)':
bootfall.cpp:80:23: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
if (tmp[w + j >> 1] || tmp[w - j >> 1]) {
~~^~~
bootfall.cpp:80:42: warning: suggest parentheses around '-' inside '>>' [-Wparentheses]
if (tmp[w + j >> 1] || tmp[w - j >> 1]) {
~~^~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
504 KB |
Output is correct |
2 |
Correct |
3 ms |
504 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
3 ms |
504 KB |
Output is correct |
5 |
Correct |
6 ms |
648 KB |
Output is correct |
6 |
Correct |
3 ms |
504 KB |
Output is correct |
7 |
Correct |
3 ms |
504 KB |
Output is correct |
8 |
Correct |
6 ms |
632 KB |
Output is correct |
9 |
Correct |
4 ms |
632 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
504 KB |
Output is correct |
2 |
Correct |
3 ms |
504 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
3 ms |
504 KB |
Output is correct |
5 |
Correct |
6 ms |
648 KB |
Output is correct |
6 |
Correct |
3 ms |
504 KB |
Output is correct |
7 |
Correct |
3 ms |
504 KB |
Output is correct |
8 |
Correct |
6 ms |
632 KB |
Output is correct |
9 |
Correct |
4 ms |
632 KB |
Output is correct |
10 |
Correct |
7 ms |
888 KB |
Output is correct |
11 |
Correct |
11 ms |
888 KB |
Output is correct |
12 |
Correct |
10 ms |
888 KB |
Output is correct |
13 |
Correct |
9 ms |
888 KB |
Output is correct |
14 |
Correct |
11 ms |
892 KB |
Output is correct |
15 |
Correct |
9 ms |
888 KB |
Output is correct |
16 |
Correct |
10 ms |
888 KB |
Output is correct |
17 |
Correct |
6 ms |
760 KB |
Output is correct |
18 |
Correct |
9 ms |
876 KB |
Output is correct |
19 |
Correct |
9 ms |
888 KB |
Output is correct |
20 |
Correct |
7 ms |
888 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
504 KB |
Output is correct |
2 |
Correct |
3 ms |
504 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
3 ms |
504 KB |
Output is correct |
5 |
Correct |
6 ms |
648 KB |
Output is correct |
6 |
Correct |
3 ms |
504 KB |
Output is correct |
7 |
Correct |
3 ms |
504 KB |
Output is correct |
8 |
Correct |
6 ms |
632 KB |
Output is correct |
9 |
Correct |
4 ms |
632 KB |
Output is correct |
10 |
Correct |
7 ms |
888 KB |
Output is correct |
11 |
Correct |
11 ms |
888 KB |
Output is correct |
12 |
Correct |
10 ms |
888 KB |
Output is correct |
13 |
Correct |
9 ms |
888 KB |
Output is correct |
14 |
Correct |
11 ms |
892 KB |
Output is correct |
15 |
Correct |
9 ms |
888 KB |
Output is correct |
16 |
Correct |
10 ms |
888 KB |
Output is correct |
17 |
Correct |
6 ms |
760 KB |
Output is correct |
18 |
Correct |
9 ms |
876 KB |
Output is correct |
19 |
Correct |
9 ms |
888 KB |
Output is correct |
20 |
Correct |
7 ms |
888 KB |
Output is correct |
21 |
Correct |
142 ms |
1620 KB |
Output is correct |
22 |
Correct |
186 ms |
1768 KB |
Output is correct |
23 |
Correct |
83 ms |
1272 KB |
Output is correct |
24 |
Correct |
285 ms |
2128 KB |
Output is correct |
25 |
Correct |
315 ms |
2168 KB |
Output is correct |
26 |
Correct |
376 ms |
2264 KB |
Output is correct |
27 |
Correct |
259 ms |
2168 KB |
Output is correct |
28 |
Correct |
201 ms |
2272 KB |
Output is correct |
29 |
Correct |
215 ms |
2272 KB |
Output is correct |
30 |
Correct |
366 ms |
2168 KB |
Output is correct |
31 |
Correct |
474 ms |
2168 KB |
Output is correct |
32 |
Correct |
330 ms |
2296 KB |
Output is correct |
33 |
Correct |
24 ms |
2168 KB |
Output is correct |
34 |
Correct |
24 ms |
2168 KB |
Output is correct |
35 |
Correct |
188 ms |
2232 KB |
Output is correct |
36 |
Correct |
314 ms |
2168 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
504 KB |
Output is correct |
2 |
Correct |
3 ms |
504 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
3 ms |
504 KB |
Output is correct |
5 |
Correct |
6 ms |
648 KB |
Output is correct |
6 |
Correct |
3 ms |
504 KB |
Output is correct |
7 |
Correct |
3 ms |
504 KB |
Output is correct |
8 |
Correct |
6 ms |
632 KB |
Output is correct |
9 |
Correct |
4 ms |
632 KB |
Output is correct |
10 |
Correct |
7 ms |
888 KB |
Output is correct |
11 |
Correct |
11 ms |
888 KB |
Output is correct |
12 |
Correct |
10 ms |
888 KB |
Output is correct |
13 |
Correct |
9 ms |
888 KB |
Output is correct |
14 |
Correct |
11 ms |
892 KB |
Output is correct |
15 |
Correct |
9 ms |
888 KB |
Output is correct |
16 |
Correct |
10 ms |
888 KB |
Output is correct |
17 |
Correct |
6 ms |
760 KB |
Output is correct |
18 |
Correct |
9 ms |
876 KB |
Output is correct |
19 |
Correct |
9 ms |
888 KB |
Output is correct |
20 |
Correct |
7 ms |
888 KB |
Output is correct |
21 |
Correct |
142 ms |
1620 KB |
Output is correct |
22 |
Correct |
186 ms |
1768 KB |
Output is correct |
23 |
Correct |
83 ms |
1272 KB |
Output is correct |
24 |
Correct |
285 ms |
2128 KB |
Output is correct |
25 |
Correct |
315 ms |
2168 KB |
Output is correct |
26 |
Correct |
376 ms |
2264 KB |
Output is correct |
27 |
Correct |
259 ms |
2168 KB |
Output is correct |
28 |
Correct |
201 ms |
2272 KB |
Output is correct |
29 |
Correct |
215 ms |
2272 KB |
Output is correct |
30 |
Correct |
366 ms |
2168 KB |
Output is correct |
31 |
Correct |
474 ms |
2168 KB |
Output is correct |
32 |
Correct |
330 ms |
2296 KB |
Output is correct |
33 |
Correct |
24 ms |
2168 KB |
Output is correct |
34 |
Correct |
24 ms |
2168 KB |
Output is correct |
35 |
Correct |
188 ms |
2232 KB |
Output is correct |
36 |
Correct |
314 ms |
2168 KB |
Output is correct |
37 |
Execution timed out |
1079 ms |
3960 KB |
Time limit exceeded |
38 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
504 KB |
Output is correct |
2 |
Correct |
3 ms |
504 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
3 ms |
504 KB |
Output is correct |
5 |
Correct |
6 ms |
648 KB |
Output is correct |
6 |
Correct |
3 ms |
504 KB |
Output is correct |
7 |
Correct |
3 ms |
504 KB |
Output is correct |
8 |
Correct |
6 ms |
632 KB |
Output is correct |
9 |
Correct |
4 ms |
632 KB |
Output is correct |
10 |
Correct |
7 ms |
888 KB |
Output is correct |
11 |
Correct |
11 ms |
888 KB |
Output is correct |
12 |
Correct |
10 ms |
888 KB |
Output is correct |
13 |
Correct |
9 ms |
888 KB |
Output is correct |
14 |
Correct |
11 ms |
892 KB |
Output is correct |
15 |
Correct |
9 ms |
888 KB |
Output is correct |
16 |
Correct |
10 ms |
888 KB |
Output is correct |
17 |
Correct |
6 ms |
760 KB |
Output is correct |
18 |
Correct |
9 ms |
876 KB |
Output is correct |
19 |
Correct |
9 ms |
888 KB |
Output is correct |
20 |
Correct |
7 ms |
888 KB |
Output is correct |
21 |
Correct |
142 ms |
1620 KB |
Output is correct |
22 |
Correct |
186 ms |
1768 KB |
Output is correct |
23 |
Correct |
83 ms |
1272 KB |
Output is correct |
24 |
Correct |
285 ms |
2128 KB |
Output is correct |
25 |
Correct |
315 ms |
2168 KB |
Output is correct |
26 |
Correct |
376 ms |
2264 KB |
Output is correct |
27 |
Correct |
259 ms |
2168 KB |
Output is correct |
28 |
Correct |
201 ms |
2272 KB |
Output is correct |
29 |
Correct |
215 ms |
2272 KB |
Output is correct |
30 |
Correct |
366 ms |
2168 KB |
Output is correct |
31 |
Correct |
474 ms |
2168 KB |
Output is correct |
32 |
Correct |
330 ms |
2296 KB |
Output is correct |
33 |
Correct |
24 ms |
2168 KB |
Output is correct |
34 |
Correct |
24 ms |
2168 KB |
Output is correct |
35 |
Correct |
188 ms |
2232 KB |
Output is correct |
36 |
Correct |
314 ms |
2168 KB |
Output is correct |
37 |
Execution timed out |
1079 ms |
3960 KB |
Time limit exceeded |
38 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
504 KB |
Output is correct |
2 |
Correct |
3 ms |
504 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
3 ms |
504 KB |
Output is correct |
5 |
Correct |
6 ms |
648 KB |
Output is correct |
6 |
Correct |
3 ms |
504 KB |
Output is correct |
7 |
Correct |
3 ms |
504 KB |
Output is correct |
8 |
Correct |
6 ms |
632 KB |
Output is correct |
9 |
Correct |
4 ms |
632 KB |
Output is correct |
10 |
Correct |
7 ms |
888 KB |
Output is correct |
11 |
Correct |
11 ms |
888 KB |
Output is correct |
12 |
Correct |
10 ms |
888 KB |
Output is correct |
13 |
Correct |
9 ms |
888 KB |
Output is correct |
14 |
Correct |
11 ms |
892 KB |
Output is correct |
15 |
Correct |
9 ms |
888 KB |
Output is correct |
16 |
Correct |
10 ms |
888 KB |
Output is correct |
17 |
Correct |
6 ms |
760 KB |
Output is correct |
18 |
Correct |
9 ms |
876 KB |
Output is correct |
19 |
Correct |
9 ms |
888 KB |
Output is correct |
20 |
Correct |
7 ms |
888 KB |
Output is correct |
21 |
Correct |
142 ms |
1620 KB |
Output is correct |
22 |
Correct |
186 ms |
1768 KB |
Output is correct |
23 |
Correct |
83 ms |
1272 KB |
Output is correct |
24 |
Correct |
285 ms |
2128 KB |
Output is correct |
25 |
Correct |
315 ms |
2168 KB |
Output is correct |
26 |
Correct |
376 ms |
2264 KB |
Output is correct |
27 |
Correct |
259 ms |
2168 KB |
Output is correct |
28 |
Correct |
201 ms |
2272 KB |
Output is correct |
29 |
Correct |
215 ms |
2272 KB |
Output is correct |
30 |
Correct |
366 ms |
2168 KB |
Output is correct |
31 |
Correct |
474 ms |
2168 KB |
Output is correct |
32 |
Correct |
330 ms |
2296 KB |
Output is correct |
33 |
Correct |
24 ms |
2168 KB |
Output is correct |
34 |
Correct |
24 ms |
2168 KB |
Output is correct |
35 |
Correct |
188 ms |
2232 KB |
Output is correct |
36 |
Correct |
314 ms |
2168 KB |
Output is correct |
37 |
Execution timed out |
1079 ms |
3960 KB |
Time limit exceeded |
38 |
Halted |
0 ms |
0 KB |
- |