/* Author : Mychecksdead */
#include<bits/stdc++.h>
using namespace std;
#define pb push_back
const int N = 510, M = 502, MX = 500*500 + 10;
int n, a[N], S = 0;
bitset<MX/2> dp[N];
void solve(){
cin >> n;
bool ok = 1;
for(int i = 1; i <= n; ++i){
cin >> a[i];
S += a[i];
if(a[i] % 2 != a[1] % 2){
ok = 0;
}
}
if(!ok || S % 2){
cout << 0;
return;
}
vector<int> used(M);
vector<int> s;
s.pb(0);
for(int i = 1; i <= n; ++i){
if(!used[a[i]]) s.pb(i);
used[a[i]] = 1;
}
for(int i: s){
dp[i][0] = 1;
for(int l = 1; l <= n; ++l){
if(i == l) continue;
dp[i] = dp[i] | (dp[i] << a[l]);
}
}
vector<int> possible;
for(int x = 2 - (a[1] % 2); x <= S; x += 2){
ok = 1;
a[0] = x;
for(int i: s){
bool state1 = 0, state2 = 0;
int req = -1, req1 = -1;
int c = S + x - a[i];
req = c >> 1;
if(req < MX){
if(req > S/2) req = c - req;
state1 = dp[i][req];
}
if(i > 0){
req1 = (c >> 1) - x;
if(req1 >= 0 && req1 < MX){
if(req1 > S/2) req1 = c - req1;
state2 = dp[i][req1];
}
}
if(!(state1 | state2)){
ok = 0;
break;
}
}
if(ok){
possible.pb(x);
}
}
cout << possible.size() << '\n';
for(int p: possible) cout << p << ' ';
}
int main(){
cin.tie(0); ios::sync_with_stdio(0);
solve();
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
1 ms |
468 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
0 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
468 KB |
Output is correct |
6 |
Correct |
1 ms |
468 KB |
Output is correct |
7 |
Correct |
1 ms |
340 KB |
Output is correct |
8 |
Correct |
1 ms |
468 KB |
Output is correct |
9 |
Correct |
0 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 |
468 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
0 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
468 KB |
Output is correct |
6 |
Correct |
1 ms |
468 KB |
Output is correct |
7 |
Correct |
1 ms |
340 KB |
Output is correct |
8 |
Correct |
1 ms |
468 KB |
Output is correct |
9 |
Correct |
0 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
2 ms |
468 KB |
Output is correct |
12 |
Correct |
2 ms |
468 KB |
Output is correct |
13 |
Correct |
0 ms |
340 KB |
Output is correct |
14 |
Correct |
2 ms |
464 KB |
Output is correct |
15 |
Correct |
2 ms |
468 KB |
Output is correct |
16 |
Correct |
3 ms |
468 KB |
Output is correct |
17 |
Correct |
1 ms |
468 KB |
Output is correct |
18 |
Correct |
2 ms |
468 KB |
Output is correct |
19 |
Correct |
2 ms |
468 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 |
468 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
0 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
468 KB |
Output is correct |
6 |
Correct |
1 ms |
468 KB |
Output is correct |
7 |
Correct |
1 ms |
340 KB |
Output is correct |
8 |
Correct |
1 ms |
468 KB |
Output is correct |
9 |
Correct |
0 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
2 ms |
468 KB |
Output is correct |
12 |
Correct |
2 ms |
468 KB |
Output is correct |
13 |
Correct |
0 ms |
340 KB |
Output is correct |
14 |
Correct |
2 ms |
464 KB |
Output is correct |
15 |
Correct |
2 ms |
468 KB |
Output is correct |
16 |
Correct |
3 ms |
468 KB |
Output is correct |
17 |
Correct |
1 ms |
468 KB |
Output is correct |
18 |
Correct |
2 ms |
468 KB |
Output is correct |
19 |
Correct |
2 ms |
468 KB |
Output is correct |
20 |
Correct |
1 ms |
340 KB |
Output is correct |
21 |
Correct |
14 ms |
956 KB |
Output is correct |
22 |
Correct |
13 ms |
980 KB |
Output is correct |
23 |
Correct |
7 ms |
852 KB |
Output is correct |
24 |
Correct |
19 ms |
1076 KB |
Output is correct |
25 |
Correct |
3 ms |
468 KB |
Output is correct |
26 |
Correct |
4 ms |
468 KB |
Output is correct |
27 |
Correct |
4 ms |
468 KB |
Output is correct |
28 |
Correct |
2 ms |
340 KB |
Output is correct |
29 |
Correct |
2 ms |
340 KB |
Output is correct |
30 |
Correct |
0 ms |
340 KB |
Output is correct |
31 |
Correct |
12 ms |
784 KB |
Output is correct |
32 |
Correct |
20 ms |
1108 KB |
Output is correct |
33 |
Correct |
2 ms |
340 KB |
Output is correct |
34 |
Correct |
1 ms |
340 KB |
Output is correct |
35 |
Correct |
3 ms |
340 KB |
Output is correct |
36 |
Correct |
27 ms |
1160 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
1 ms |
468 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
0 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
468 KB |
Output is correct |
6 |
Correct |
1 ms |
468 KB |
Output is correct |
7 |
Correct |
1 ms |
340 KB |
Output is correct |
8 |
Correct |
1 ms |
468 KB |
Output is correct |
9 |
Correct |
0 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
2 ms |
468 KB |
Output is correct |
12 |
Correct |
2 ms |
468 KB |
Output is correct |
13 |
Correct |
0 ms |
340 KB |
Output is correct |
14 |
Correct |
2 ms |
464 KB |
Output is correct |
15 |
Correct |
2 ms |
468 KB |
Output is correct |
16 |
Correct |
3 ms |
468 KB |
Output is correct |
17 |
Correct |
1 ms |
468 KB |
Output is correct |
18 |
Correct |
2 ms |
468 KB |
Output is correct |
19 |
Correct |
2 ms |
468 KB |
Output is correct |
20 |
Correct |
1 ms |
340 KB |
Output is correct |
21 |
Correct |
14 ms |
956 KB |
Output is correct |
22 |
Correct |
13 ms |
980 KB |
Output is correct |
23 |
Correct |
7 ms |
852 KB |
Output is correct |
24 |
Correct |
19 ms |
1076 KB |
Output is correct |
25 |
Correct |
3 ms |
468 KB |
Output is correct |
26 |
Correct |
4 ms |
468 KB |
Output is correct |
27 |
Correct |
4 ms |
468 KB |
Output is correct |
28 |
Correct |
2 ms |
340 KB |
Output is correct |
29 |
Correct |
2 ms |
340 KB |
Output is correct |
30 |
Correct |
0 ms |
340 KB |
Output is correct |
31 |
Correct |
12 ms |
784 KB |
Output is correct |
32 |
Correct |
20 ms |
1108 KB |
Output is correct |
33 |
Correct |
2 ms |
340 KB |
Output is correct |
34 |
Correct |
1 ms |
340 KB |
Output is correct |
35 |
Correct |
3 ms |
340 KB |
Output is correct |
36 |
Correct |
27 ms |
1160 KB |
Output is correct |
37 |
Correct |
45 ms |
1352 KB |
Output is correct |
38 |
Correct |
49 ms |
1336 KB |
Output is correct |
39 |
Correct |
3 ms |
340 KB |
Output is correct |
40 |
Correct |
167 ms |
2808 KB |
Output is correct |
41 |
Correct |
3 ms |
340 KB |
Output is correct |
42 |
Correct |
128 ms |
2408 KB |
Output is correct |
43 |
Correct |
39 ms |
1160 KB |
Output is correct |
44 |
Correct |
34 ms |
1112 KB |
Output is correct |
45 |
Correct |
33 ms |
1124 KB |
Output is correct |
46 |
Correct |
154 ms |
2508 KB |
Output is correct |
47 |
Correct |
126 ms |
2420 KB |
Output is correct |
48 |
Correct |
10 ms |
656 KB |
Output is correct |
49 |
Correct |
6 ms |
468 KB |
Output is correct |
50 |
Correct |
148 ms |
2808 KB |
Output is correct |
51 |
Correct |
0 ms |
340 KB |
Output is correct |
52 |
Correct |
19 ms |
872 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
1 ms |
468 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
0 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
468 KB |
Output is correct |
6 |
Correct |
1 ms |
468 KB |
Output is correct |
7 |
Correct |
1 ms |
340 KB |
Output is correct |
8 |
Correct |
1 ms |
468 KB |
Output is correct |
9 |
Correct |
0 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
2 ms |
468 KB |
Output is correct |
12 |
Correct |
2 ms |
468 KB |
Output is correct |
13 |
Correct |
0 ms |
340 KB |
Output is correct |
14 |
Correct |
2 ms |
464 KB |
Output is correct |
15 |
Correct |
2 ms |
468 KB |
Output is correct |
16 |
Correct |
3 ms |
468 KB |
Output is correct |
17 |
Correct |
1 ms |
468 KB |
Output is correct |
18 |
Correct |
2 ms |
468 KB |
Output is correct |
19 |
Correct |
2 ms |
468 KB |
Output is correct |
20 |
Correct |
1 ms |
340 KB |
Output is correct |
21 |
Correct |
14 ms |
956 KB |
Output is correct |
22 |
Correct |
13 ms |
980 KB |
Output is correct |
23 |
Correct |
7 ms |
852 KB |
Output is correct |
24 |
Correct |
19 ms |
1076 KB |
Output is correct |
25 |
Correct |
3 ms |
468 KB |
Output is correct |
26 |
Correct |
4 ms |
468 KB |
Output is correct |
27 |
Correct |
4 ms |
468 KB |
Output is correct |
28 |
Correct |
2 ms |
340 KB |
Output is correct |
29 |
Correct |
2 ms |
340 KB |
Output is correct |
30 |
Correct |
0 ms |
340 KB |
Output is correct |
31 |
Correct |
12 ms |
784 KB |
Output is correct |
32 |
Correct |
20 ms |
1108 KB |
Output is correct |
33 |
Correct |
2 ms |
340 KB |
Output is correct |
34 |
Correct |
1 ms |
340 KB |
Output is correct |
35 |
Correct |
3 ms |
340 KB |
Output is correct |
36 |
Correct |
27 ms |
1160 KB |
Output is correct |
37 |
Correct |
45 ms |
1352 KB |
Output is correct |
38 |
Correct |
49 ms |
1336 KB |
Output is correct |
39 |
Correct |
3 ms |
340 KB |
Output is correct |
40 |
Correct |
167 ms |
2808 KB |
Output is correct |
41 |
Correct |
3 ms |
340 KB |
Output is correct |
42 |
Correct |
128 ms |
2408 KB |
Output is correct |
43 |
Correct |
39 ms |
1160 KB |
Output is correct |
44 |
Correct |
34 ms |
1112 KB |
Output is correct |
45 |
Correct |
33 ms |
1124 KB |
Output is correct |
46 |
Correct |
154 ms |
2508 KB |
Output is correct |
47 |
Correct |
126 ms |
2420 KB |
Output is correct |
48 |
Correct |
10 ms |
656 KB |
Output is correct |
49 |
Correct |
6 ms |
468 KB |
Output is correct |
50 |
Correct |
148 ms |
2808 KB |
Output is correct |
51 |
Correct |
0 ms |
340 KB |
Output is correct |
52 |
Correct |
19 ms |
872 KB |
Output is correct |
53 |
Correct |
163 ms |
2652 KB |
Output is correct |
54 |
Correct |
193 ms |
2704 KB |
Output is correct |
55 |
Correct |
29 ms |
1100 KB |
Output is correct |
56 |
Correct |
188 ms |
2904 KB |
Output is correct |
57 |
Correct |
34 ms |
1212 KB |
Output is correct |
58 |
Correct |
284 ms |
3640 KB |
Output is correct |
59 |
Correct |
177 ms |
2560 KB |
Output is correct |
60 |
Correct |
1 ms |
340 KB |
Output is correct |
61 |
Correct |
181 ms |
2496 KB |
Output is correct |
62 |
Correct |
90 ms |
1760 KB |
Output is correct |
63 |
Correct |
46 ms |
1368 KB |
Output is correct |
64 |
Correct |
48 ms |
1356 KB |
Output is correct |
65 |
Correct |
13 ms |
500 KB |
Output is correct |
66 |
Correct |
49 ms |
984 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
1 ms |
468 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
0 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
468 KB |
Output is correct |
6 |
Correct |
1 ms |
468 KB |
Output is correct |
7 |
Correct |
1 ms |
340 KB |
Output is correct |
8 |
Correct |
1 ms |
468 KB |
Output is correct |
9 |
Correct |
0 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
2 ms |
468 KB |
Output is correct |
12 |
Correct |
2 ms |
468 KB |
Output is correct |
13 |
Correct |
0 ms |
340 KB |
Output is correct |
14 |
Correct |
2 ms |
464 KB |
Output is correct |
15 |
Correct |
2 ms |
468 KB |
Output is correct |
16 |
Correct |
3 ms |
468 KB |
Output is correct |
17 |
Correct |
1 ms |
468 KB |
Output is correct |
18 |
Correct |
2 ms |
468 KB |
Output is correct |
19 |
Correct |
2 ms |
468 KB |
Output is correct |
20 |
Correct |
1 ms |
340 KB |
Output is correct |
21 |
Correct |
14 ms |
956 KB |
Output is correct |
22 |
Correct |
13 ms |
980 KB |
Output is correct |
23 |
Correct |
7 ms |
852 KB |
Output is correct |
24 |
Correct |
19 ms |
1076 KB |
Output is correct |
25 |
Correct |
3 ms |
468 KB |
Output is correct |
26 |
Correct |
4 ms |
468 KB |
Output is correct |
27 |
Correct |
4 ms |
468 KB |
Output is correct |
28 |
Correct |
2 ms |
340 KB |
Output is correct |
29 |
Correct |
2 ms |
340 KB |
Output is correct |
30 |
Correct |
0 ms |
340 KB |
Output is correct |
31 |
Correct |
12 ms |
784 KB |
Output is correct |
32 |
Correct |
20 ms |
1108 KB |
Output is correct |
33 |
Correct |
2 ms |
340 KB |
Output is correct |
34 |
Correct |
1 ms |
340 KB |
Output is correct |
35 |
Correct |
3 ms |
340 KB |
Output is correct |
36 |
Correct |
27 ms |
1160 KB |
Output is correct |
37 |
Correct |
45 ms |
1352 KB |
Output is correct |
38 |
Correct |
49 ms |
1336 KB |
Output is correct |
39 |
Correct |
3 ms |
340 KB |
Output is correct |
40 |
Correct |
167 ms |
2808 KB |
Output is correct |
41 |
Correct |
3 ms |
340 KB |
Output is correct |
42 |
Correct |
128 ms |
2408 KB |
Output is correct |
43 |
Correct |
39 ms |
1160 KB |
Output is correct |
44 |
Correct |
34 ms |
1112 KB |
Output is correct |
45 |
Correct |
33 ms |
1124 KB |
Output is correct |
46 |
Correct |
154 ms |
2508 KB |
Output is correct |
47 |
Correct |
126 ms |
2420 KB |
Output is correct |
48 |
Correct |
10 ms |
656 KB |
Output is correct |
49 |
Correct |
6 ms |
468 KB |
Output is correct |
50 |
Correct |
148 ms |
2808 KB |
Output is correct |
51 |
Correct |
0 ms |
340 KB |
Output is correct |
52 |
Correct |
19 ms |
872 KB |
Output is correct |
53 |
Correct |
163 ms |
2652 KB |
Output is correct |
54 |
Correct |
193 ms |
2704 KB |
Output is correct |
55 |
Correct |
29 ms |
1100 KB |
Output is correct |
56 |
Correct |
188 ms |
2904 KB |
Output is correct |
57 |
Correct |
34 ms |
1212 KB |
Output is correct |
58 |
Correct |
284 ms |
3640 KB |
Output is correct |
59 |
Correct |
177 ms |
2560 KB |
Output is correct |
60 |
Correct |
1 ms |
340 KB |
Output is correct |
61 |
Correct |
181 ms |
2496 KB |
Output is correct |
62 |
Correct |
90 ms |
1760 KB |
Output is correct |
63 |
Correct |
46 ms |
1368 KB |
Output is correct |
64 |
Correct |
48 ms |
1356 KB |
Output is correct |
65 |
Correct |
13 ms |
500 KB |
Output is correct |
66 |
Correct |
49 ms |
984 KB |
Output is correct |
67 |
Correct |
381 ms |
4640 KB |
Output is correct |
68 |
Correct |
636 ms |
4652 KB |
Output is correct |
69 |
Incorrect |
77 ms |
1888 KB |
Output isn't correct |
70 |
Halted |
0 ms |
0 KB |
- |