oj.uz

Submission #156171

# Submission time Handle Problem Language Result Execution time Memory
156171 2019-10-04T08:52:47 Z andrew Bootfall (IZhO17_bootfall) C++17
100 / 100
 285 ms 3936 KB 
#include <bits/stdc++.h>

//#pragma GCC optimize("-O3")
//#pragma GCC optimize("Ofast")
//#pragma GCC optimize("unroll-loops")

#define fi first
#define se second
#define p_b push_back
#define pll pair<ll,ll>
#define pii pair<int,int>
#define m_p make_pair
#define all(x) x.begin(),x.end()
#define sset ordered_set
#define sqr(x) (x)*(x)
#define pw(x) (1ll << x)

using namespace std;
typedef long long ll;
typedef long double ld;
const ll MAXN = 1123456;
const ll N = 500;
const ll M = N * N;
const ll mod = 1e9 + 7;
const ll inf = 3e18;
mt19937_64 rnd(chrono::system_clock::now().time_since_epoch().count());

template <typename T> void vout(T s){cout << s << endl;exit(0);}

int dp[MAXN], kol[MAXN];

bool f[MAXN];

int main(){
    ios_base :: sync_with_stdio(0);
    cin.tie(0);

    dp[0] = 1;

    int n;

    cin >> n;

    vector <int> a(n + 1);

    for(int i = 1; i <= n; i++)cin >> a[i];

    int sc = 0;

    vector <int> pref(n + 1);

    for(int i = 1; i <= n; i++){
        for(int j = pref[i - 1] + a[i]; j >= a[i]; j--){
            dp[j] += dp[j - a[i]];
            if(dp[j] >= mod)dp[j] -= mod;
        }
        pref[i] = pref[i - 1] + a[i];
    }

    sc = pref[n];

    if(sc % 2)vout(0);
    if(!dp[sc / 2])vout(0);

    int S;

    vector <int> ans, can;

    for(int i = 1; i <= pref[n]; i++)ans.p_b(i);

    for(int i = 1; i <= n; i++){
        if(f[a[i]])continue;
        f[a[i]] = 1;
        for(int j = a[i]; j <= pref[n]; j++){
            dp[j] -= dp[j - a[i]];
            if(dp[j] < 0)dp[j] += mod;
        }

        for(auto j : ans){
            S = sc - a[i] + j;
            if(S % 2 == 0 && dp[S / 2])can.p_b(j);
        }

        ans.clear();
        ans = can;
        can.clear();

        for(int j = pref[n]; j >= a[i]; j--){
            dp[j] += dp[j - a[i]];
            if(dp[j] >= mod)dp[j] -= mod;
        }
    }

    cout << ans.size() << "\n";

    for(auto i : ans)cout << i << " ";
    cout << "\n";

    return 0;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 380 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 380 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 380 KB Output is correct
20 Correct 2 ms 376 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 380 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 380 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 3 ms 376 KB Output is correct
22 Correct 3 ms 380 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 4 ms 476 KB Output is correct
25 Correct 3 ms 504 KB Output is correct
26 Correct 3 ms 504 KB Output is correct
27 Correct 3 ms 504 KB Output is correct
28 Correct 3 ms 504 KB Output is correct
29 Correct 3 ms 504 KB Output is correct
30 Correct 4 ms 376 KB Output is correct
31 Correct 4 ms 504 KB Output is correct
32 Correct 4 ms 376 KB Output is correct
33 Correct 3 ms 504 KB Output is correct
34 Correct 3 ms 504 KB Output is correct
35 Correct 3 ms 508 KB Output is correct
36 Correct 4 ms 504 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 380 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 380 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 3 ms 376 KB Output is correct
22 Correct 3 ms 380 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 4 ms 476 KB Output is correct
25 Correct 3 ms 504 KB Output is correct
26 Correct 3 ms 504 KB Output is correct
27 Correct 3 ms 504 KB Output is correct
28 Correct 3 ms 504 KB Output is correct
29 Correct 3 ms 504 KB Output is correct
30 Correct 4 ms 376 KB Output is correct
31 Correct 4 ms 504 KB Output is correct
32 Correct 4 ms 376 KB Output is correct
33 Correct 3 ms 504 KB Output is correct
34 Correct 3 ms 504 KB Output is correct
35 Correct 3 ms 508 KB Output is correct
36 Correct 4 ms 504 KB Output is correct
37 Correct 11 ms 760 KB Output is correct
38 Correct 12 ms 632 KB Output is correct
39 Correct 17 ms 1016 KB Output is correct
40 Correct 34 ms 924 KB Output is correct
41 Correct 21 ms 1400 KB Output is correct
42 Correct 27 ms 760 KB Output is correct
43 Correct 24 ms 1144 KB Output is correct
44 Correct 24 ms 1184 KB Output is correct
45 Correct 25 ms 1144 KB Output is correct
46 Correct 26 ms 760 KB Output is correct
47 Correct 29 ms 888 KB Output is correct
48 Correct 20 ms 1272 KB Output is correct
49 Correct 18 ms 1016 KB Output is correct
50 Correct 31 ms 760 KB Output is correct
51 Correct 9 ms 508 KB Output is correct
52 Correct 26 ms 1272 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 380 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 380 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 3 ms 376 KB Output is correct
22 Correct 3 ms 380 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 4 ms 476 KB Output is correct
25 Correct 3 ms 504 KB Output is correct
26 Correct 3 ms 504 KB Output is correct
27 Correct 3 ms 504 KB Output is correct
28 Correct 3 ms 504 KB Output is correct
29 Correct 3 ms 504 KB Output is correct
30 Correct 4 ms 376 KB Output is correct
31 Correct 4 ms 504 KB Output is correct
32 Correct 4 ms 376 KB Output is correct
33 Correct 3 ms 504 KB Output is correct
34 Correct 3 ms 504 KB Output is correct
35 Correct 3 ms 508 KB Output is correct
36 Correct 4 ms 504 KB Output is correct
37 Correct 11 ms 760 KB Output is correct
38 Correct 12 ms 632 KB Output is correct
39 Correct 17 ms 1016 KB Output is correct
40 Correct 34 ms 924 KB Output is correct
41 Correct 21 ms 1400 KB Output is correct
42 Correct 27 ms 760 KB Output is correct
43 Correct 24 ms 1144 KB Output is correct
44 Correct 24 ms 1184 KB Output is correct
45 Correct 25 ms 1144 KB Output is correct
46 Correct 26 ms 760 KB Output is correct
47 Correct 29 ms 888 KB Output is correct
48 Correct 20 ms 1272 KB Output is correct
49 Correct 18 ms 1016 KB Output is correct
50 Correct 31 ms 760 KB Output is correct
51 Correct 9 ms 508 KB Output is correct
52 Correct 26 ms 1272 KB Output is correct
53 Correct 43 ms 1016 KB Output is correct
54 Correct 55 ms 1144 KB Output is correct
55 Correct 49 ms 2008 KB Output is correct
56 Correct 56 ms 1272 KB Output is correct
57 Correct 54 ms 2092 KB Output is correct
58 Correct 78 ms 1376 KB Output is correct
59 Correct 68 ms 1652 KB Output is correct
60 Correct 21 ms 632 KB Output is correct
61 Correct 76 ms 1780 KB Output is correct
62 Correct 59 ms 1780 KB Output is correct
63 Correct 52 ms 1908 KB Output is correct
64 Correct 64 ms 1908 KB Output is correct
65 Correct 19 ms 888 KB Output is correct
66 Correct 26 ms 1016 KB Output is correct

Subtask #6
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 380 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 380 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 3 ms 376 KB Output is correct
22 Correct 3 ms 380 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 4 ms 476 KB Output is correct
25 Correct 3 ms 504 KB Output is correct
26 Correct 3 ms 504 KB Output is correct
27 Correct 3 ms 504 KB Output is correct
28 Correct 3 ms 504 KB Output is correct
29 Correct 3 ms 504 KB Output is correct
30 Correct 4 ms 376 KB Output is correct
31 Correct 4 ms 504 KB Output is correct
32 Correct 4 ms 376 KB Output is correct
33 Correct 3 ms 504 KB Output is correct
34 Correct 3 ms 504 KB Output is correct
35 Correct 3 ms 508 KB Output is correct
36 Correct 4 ms 504 KB Output is correct
37 Correct 11 ms 760 KB Output is correct
38 Correct 12 ms 632 KB Output is correct
39 Correct 17 ms 1016 KB Output is correct
40 Correct 34 ms 924 KB Output is correct
41 Correct 21 ms 1400 KB Output is correct
42 Correct 27 ms 760 KB Output is correct
43 Correct 24 ms 1144 KB Output is correct
44 Correct 24 ms 1184 KB Output is correct
45 Correct 25 ms 1144 KB Output is correct
46 Correct 26 ms 760 KB Output is correct
47 Correct 29 ms 888 KB Output is correct
48 Correct 20 ms 1272 KB Output is correct
49 Correct 18 ms 1016 KB Output is correct
50 Correct 31 ms 760 KB Output is correct
51 Correct 9 ms 508 KB Output is correct
52 Correct 26 ms 1272 KB Output is correct
53 Correct 43 ms 1016 KB Output is correct
54 Correct 55 ms 1144 KB Output is correct
55 Correct 49 ms 2008 KB Output is correct
56 Correct 56 ms 1272 KB Output is correct
57 Correct 54 ms 2092 KB Output is correct
58 Correct 78 ms 1376 KB Output is correct
59 Correct 68 ms 1652 KB Output is correct
60 Correct 21 ms 632 KB Output is correct
61 Correct 76 ms 1780 KB Output is correct
62 Correct 59 ms 1780 KB Output is correct
63 Correct 52 ms 1908 KB Output is correct
64 Correct 64 ms 1908 KB Output is correct
65 Correct 19 ms 888 KB Output is correct
66 Correct 26 ms 1016 KB Output is correct
67 Correct 107 ms 1652 KB Output is correct
68 Correct 58 ms 908 KB Output is correct
69 Correct 138 ms 3532 KB Output is correct
70 Correct 229 ms 2304 KB Output is correct
71 Correct 222 ms 2292 KB Output is correct
72 Correct 285 ms 1908 KB Output is correct
73 Correct 284 ms 1908 KB Output is correct
74 Correct 172 ms 3924 KB Output is correct
75 Correct 215 ms 3272 KB Output is correct
76 Correct 137 ms 3884 KB Output is correct
77 Correct 151 ms 3936 KB Output is correct