oj.uz

답안 #319238

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
319238 2020-11-04T14:40:57 Z BeanZ Bootfall (IZhO17_bootfall) C++14
100 / 100
 212 ms 3300 KB 
// I_Love_LPL
#include <bits/stdc++.h>
using namespace std;
#define task "A"
#define ll int
#define endl '\n'
const int N = 505;
const int mod = 1e9 + 7;
ll a[N];
bool chk[505];
const int lim = 500 * 500 + 5;
const int lim2 = 500 * 500 / 2 + 1;
bitset<lim> bit2, tmp;
ll sum = 0;
void solve(ll l, ll r, bitset<lim> bit){
    if (l == r){
        tmp.reset();
        for (int j = 0; j <= lim; j++){
            if ((sum - j - a[l] - j) <= 0) break;
            if (bit[j] && ((sum - j - a[l] - j) > 0)){
                tmp[sum - j - a[l] - j] = 1;
            }
        }
        bit2 = bit2 & tmp;
        return;
    }
    ll mid = (l + r) >> 1;
    bitset<lim> L, R;
    L = bit;
    R = bit;
    for (int i = mid + 1; i <= r; i++) R |= (R << a[i]);
    for (int i = l; i <= mid; i++) L |= (L << a[i]);
    solve(l, mid, R);
    solve(mid + 1, r, L);
}
bitset<lim> bit;
int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    if (fopen(task".inp", "r")){
        freopen(task".inp", "r", stdin);
        freopen(task".out", "w", stdout);
    }
    ll n;
    cin >> n;
    for (int i = 1; i <= n; i++) cin >> a[i], sum += a[i];
    bit[0] = 1;
    for (int i = 1; i <= n; i++){
        bit |= (bit << a[i]);
    }
    if (bit[sum / 2] == 0) return cout << 0, 0;
    for (int i = 1; i < lim; i++) bit2[i] = 1;
    bit.reset();
    bit[0] = 1;
    solve(1, n, bit);
    vector<ll> ans;
    for (int i = 1; i < lim; i++){
        if (bit2[i]) ans.push_back(i);
    }
    cout << ans.size() << endl;
    for (auto j : ans) cout << j << " ";
}
/*
4
1 3 1 5
6
3 5 7 11 9 13
3
2 2 2
*/

Compilation message

bootfall.cpp: In function 'int main()':
bootfall.cpp:41:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   41 |         freopen(task".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
bootfall.cpp:42:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   42 |         freopen(task".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
6.0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 876 KB Output is correct
2 Correct 3 ms 1004 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 3 ms 872 KB Output is correct
5 Correct 3 ms 1132 KB Output is correct
6 Correct 3 ms 1004 KB Output is correct
7 Correct 3 ms 1004 KB Output is correct
8 Correct 3 ms 1132 KB Output is correct
9 Correct 3 ms 1132 KB Output is correct

Subtask #2
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 876 KB Output is correct
2 Correct 3 ms 1004 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 3 ms 872 KB Output is correct
5 Correct 3 ms 1132 KB Output is correct
6 Correct 3 ms 1004 KB Output is correct
7 Correct 3 ms 1004 KB Output is correct
8 Correct 3 ms 1132 KB Output is correct
9 Correct 3 ms 1132 KB Output is correct
10 Correct 5 ms 1260 KB Output is correct
11 Correct 5 ms 1260 KB Output is correct
12 Correct 5 ms 1260 KB Output is correct
13 Correct 4 ms 1260 KB Output is correct
14 Correct 4 ms 1260 KB Output is correct
15 Correct 5 ms 1260 KB Output is correct
16 Correct 5 ms 1260 KB Output is correct
17 Correct 4 ms 1260 KB Output is correct
18 Correct 4 ms 1260 KB Output is correct
19 Correct 5 ms 1260 KB Output is correct
20 Correct 5 ms 1260 KB Output is correct

Subtask #3
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 876 KB Output is correct
2 Correct 3 ms 1004 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 3 ms 872 KB Output is correct
5 Correct 3 ms 1132 KB Output is correct
6 Correct 3 ms 1004 KB Output is correct
7 Correct 3 ms 1004 KB Output is correct
8 Correct 3 ms 1132 KB Output is correct
9 Correct 3 ms 1132 KB Output is correct
10 Correct 5 ms 1260 KB Output is correct
11 Correct 5 ms 1260 KB Output is correct
12 Correct 5 ms 1260 KB Output is correct
13 Correct 4 ms 1260 KB Output is correct
14 Correct 4 ms 1260 KB Output is correct
15 Correct 5 ms 1260 KB Output is correct
16 Correct 5 ms 1260 KB Output is correct
17 Correct 4 ms 1260 KB Output is correct
18 Correct 4 ms 1260 KB Output is correct
19 Correct 5 ms 1260 KB Output is correct
20 Correct 5 ms 1260 KB Output is correct
21 Correct 8 ms 1516 KB Output is correct
22 Correct 10 ms 1644 KB Output is correct
23 Correct 7 ms 1516 KB Output is correct
24 Correct 12 ms 1644 KB Output is correct
25 Correct 12 ms 1644 KB Output is correct
26 Correct 13 ms 1644 KB Output is correct
27 Correct 13 ms 1644 KB Output is correct
28 Correct 13 ms 1644 KB Output is correct
29 Correct 13 ms 1644 KB Output is correct
30 Correct 14 ms 1644 KB Output is correct
31 Correct 13 ms 1644 KB Output is correct
32 Correct 13 ms 1644 KB Output is correct
33 Correct 12 ms 1644 KB Output is correct
34 Correct 12 ms 1644 KB Output is correct
35 Correct 13 ms 1644 KB Output is correct
36 Correct 13 ms 1644 KB Output is correct

Subtask #4
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 876 KB Output is correct
2 Correct 3 ms 1004 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 3 ms 872 KB Output is correct
5 Correct 3 ms 1132 KB Output is correct
6 Correct 3 ms 1004 KB Output is correct
7 Correct 3 ms 1004 KB Output is correct
8 Correct 3 ms 1132 KB Output is correct
9 Correct 3 ms 1132 KB Output is correct
10 Correct 5 ms 1260 KB Output is correct
11 Correct 5 ms 1260 KB Output is correct
12 Correct 5 ms 1260 KB Output is correct
13 Correct 4 ms 1260 KB Output is correct
14 Correct 4 ms 1260 KB Output is correct
15 Correct 5 ms 1260 KB Output is correct
16 Correct 5 ms 1260 KB Output is correct
17 Correct 4 ms 1260 KB Output is correct
18 Correct 4 ms 1260 KB Output is correct
19 Correct 5 ms 1260 KB Output is correct
20 Correct 5 ms 1260 KB Output is correct
21 Correct 8 ms 1516 KB Output is correct
22 Correct 10 ms 1644 KB Output is correct
23 Correct 7 ms 1516 KB Output is correct
24 Correct 12 ms 1644 KB Output is correct
25 Correct 12 ms 1644 KB Output is correct
26 Correct 13 ms 1644 KB Output is correct
27 Correct 13 ms 1644 KB Output is correct
28 Correct 13 ms 1644 KB Output is correct
29 Correct 13 ms 1644 KB Output is correct
30 Correct 14 ms 1644 KB Output is correct
31 Correct 13 ms 1644 KB Output is correct
32 Correct 13 ms 1644 KB Output is correct
33 Correct 12 ms 1644 KB Output is correct
34 Correct 12 ms 1644 KB Output is correct
35 Correct 13 ms 1644 KB Output is correct
36 Correct 13 ms 1644 KB Output is correct
37 Correct 31 ms 1892 KB Output is correct
38 Correct 29 ms 1900 KB Output is correct
39 Correct 37 ms 1772 KB Output is correct
40 Correct 46 ms 2148 KB Output is correct
41 Correct 42 ms 1900 KB Output is correct
42 Correct 40 ms 2020 KB Output is correct
43 Correct 51 ms 2148 KB Output is correct
44 Correct 50 ms 2148 KB Output is correct
45 Correct 51 ms 2148 KB Output is correct
46 Correct 37 ms 1900 KB Output is correct
47 Correct 42 ms 2020 KB Output is correct
48 Correct 46 ms 2148 KB Output is correct
49 Correct 42 ms 1892 KB Output is correct
50 Correct 40 ms 2020 KB Output is correct
51 Correct 39 ms 1772 KB Output is correct
52 Correct 55 ms 2404 KB Output is correct

Subtask #5
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 876 KB Output is correct
2 Correct 3 ms 1004 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 3 ms 872 KB Output is correct
5 Correct 3 ms 1132 KB Output is correct
6 Correct 3 ms 1004 KB Output is correct
7 Correct 3 ms 1004 KB Output is correct
8 Correct 3 ms 1132 KB Output is correct
9 Correct 3 ms 1132 KB Output is correct
10 Correct 5 ms 1260 KB Output is correct
11 Correct 5 ms 1260 KB Output is correct
12 Correct 5 ms 1260 KB Output is correct
13 Correct 4 ms 1260 KB Output is correct
14 Correct 4 ms 1260 KB Output is correct
15 Correct 5 ms 1260 KB Output is correct
16 Correct 5 ms 1260 KB Output is correct
17 Correct 4 ms 1260 KB Output is correct
18 Correct 4 ms 1260 KB Output is correct
19 Correct 5 ms 1260 KB Output is correct
20 Correct 5 ms 1260 KB Output is correct
21 Correct 8 ms 1516 KB Output is correct
22 Correct 10 ms 1644 KB Output is correct
23 Correct 7 ms 1516 KB Output is correct
24 Correct 12 ms 1644 KB Output is correct
25 Correct 12 ms 1644 KB Output is correct
26 Correct 13 ms 1644 KB Output is correct
27 Correct 13 ms 1644 KB Output is correct
28 Correct 13 ms 1644 KB Output is correct
29 Correct 13 ms 1644 KB Output is correct
30 Correct 14 ms 1644 KB Output is correct
31 Correct 13 ms 1644 KB Output is correct
32 Correct 13 ms 1644 KB Output is correct
33 Correct 12 ms 1644 KB Output is correct
34 Correct 12 ms 1644 KB Output is correct
35 Correct 13 ms 1644 KB Output is correct
36 Correct 13 ms 1644 KB Output is correct
37 Correct 31 ms 1892 KB Output is correct
38 Correct 29 ms 1900 KB Output is correct
39 Correct 37 ms 1772 KB Output is correct
40 Correct 46 ms 2148 KB Output is correct
41 Correct 42 ms 1900 KB Output is correct
42 Correct 40 ms 2020 KB Output is correct
43 Correct 51 ms 2148 KB Output is correct
44 Correct 50 ms 2148 KB Output is correct
45 Correct 51 ms 2148 KB Output is correct
46 Correct 37 ms 1900 KB Output is correct
47 Correct 42 ms 2020 KB Output is correct
48 Correct 46 ms 2148 KB Output is correct
49 Correct 42 ms 1892 KB Output is correct
50 Correct 40 ms 2020 KB Output is correct
51 Correct 39 ms 1772 KB Output is correct
52 Correct 55 ms 2404 KB Output is correct
53 Correct 57 ms 2276 KB Output is correct
54 Correct 72 ms 2276 KB Output is correct
55 Correct 92 ms 2536 KB Output is correct
56 Correct 60 ms 2276 KB Output is correct
57 Correct 97 ms 2536 KB Output is correct
58 Correct 74 ms 2404 KB Output is correct
59 Correct 78 ms 2408 KB Output is correct
60 Correct 69 ms 2020 KB Output is correct
61 Correct 82 ms 2536 KB Output is correct
62 Correct 79 ms 2600 KB Output is correct
63 Correct 83 ms 2536 KB Output is correct
64 Correct 81 ms 2620 KB Output is correct
65 Correct 50 ms 2020 KB Output is correct
66 Correct 47 ms 2020 KB Output is correct

Subtask #6
35.0 / 35.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 876 KB Output is correct
2 Correct 3 ms 1004 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 3 ms 872 KB Output is correct
5 Correct 3 ms 1132 KB Output is correct
6 Correct 3 ms 1004 KB Output is correct
7 Correct 3 ms 1004 KB Output is correct
8 Correct 3 ms 1132 KB Output is correct
9 Correct 3 ms 1132 KB Output is correct
10 Correct 5 ms 1260 KB Output is correct
11 Correct 5 ms 1260 KB Output is correct
12 Correct 5 ms 1260 KB Output is correct
13 Correct 4 ms 1260 KB Output is correct
14 Correct 4 ms 1260 KB Output is correct
15 Correct 5 ms 1260 KB Output is correct
16 Correct 5 ms 1260 KB Output is correct
17 Correct 4 ms 1260 KB Output is correct
18 Correct 4 ms 1260 KB Output is correct
19 Correct 5 ms 1260 KB Output is correct
20 Correct 5 ms 1260 KB Output is correct
21 Correct 8 ms 1516 KB Output is correct
22 Correct 10 ms 1644 KB Output is correct
23 Correct 7 ms 1516 KB Output is correct
24 Correct 12 ms 1644 KB Output is correct
25 Correct 12 ms 1644 KB Output is correct
26 Correct 13 ms 1644 KB Output is correct
27 Correct 13 ms 1644 KB Output is correct
28 Correct 13 ms 1644 KB Output is correct
29 Correct 13 ms 1644 KB Output is correct
30 Correct 14 ms 1644 KB Output is correct
31 Correct 13 ms 1644 KB Output is correct
32 Correct 13 ms 1644 KB Output is correct
33 Correct 12 ms 1644 KB Output is correct
34 Correct 12 ms 1644 KB Output is correct
35 Correct 13 ms 1644 KB Output is correct
36 Correct 13 ms 1644 KB Output is correct
37 Correct 31 ms 1892 KB Output is correct
38 Correct 29 ms 1900 KB Output is correct
39 Correct 37 ms 1772 KB Output is correct
40 Correct 46 ms 2148 KB Output is correct
41 Correct 42 ms 1900 KB Output is correct
42 Correct 40 ms 2020 KB Output is correct
43 Correct 51 ms 2148 KB Output is correct
44 Correct 50 ms 2148 KB Output is correct
45 Correct 51 ms 2148 KB Output is correct
46 Correct 37 ms 1900 KB Output is correct
47 Correct 42 ms 2020 KB Output is correct
48 Correct 46 ms 2148 KB Output is correct
49 Correct 42 ms 1892 KB Output is correct
50 Correct 40 ms 2020 KB Output is correct
51 Correct 39 ms 1772 KB Output is correct
52 Correct 55 ms 2404 KB Output is correct
53 Correct 57 ms 2276 KB Output is correct
54 Correct 72 ms 2276 KB Output is correct
55 Correct 92 ms 2536 KB Output is correct
56 Correct 60 ms 2276 KB Output is correct
57 Correct 97 ms 2536 KB Output is correct
58 Correct 74 ms 2404 KB Output is correct
59 Correct 78 ms 2408 KB Output is correct
60 Correct 69 ms 2020 KB Output is correct
61 Correct 82 ms 2536 KB Output is correct
62 Correct 79 ms 2600 KB Output is correct
63 Correct 83 ms 2536 KB Output is correct
64 Correct 81 ms 2620 KB Output is correct
65 Correct 50 ms 2020 KB Output is correct
66 Correct 47 ms 2020 KB Output is correct
67 Correct 91 ms 2496 KB Output is correct
68 Correct 5 ms 492 KB Output is correct
69 Correct 196 ms 3172 KB Output is correct
70 Correct 145 ms 2664 KB Output is correct
71 Correct 152 ms 2792 KB Output is correct
72 Correct 137 ms 1900 KB Output is correct
73 Correct 135 ms 1900 KB Output is correct
74 Correct 204 ms 3264 KB Output is correct
75 Correct 176 ms 2916 KB Output is correct
76 Correct 206 ms 3172 KB Output is correct
77 Correct 212 ms 3300 KB Output is correct