oj.uz

Submission #173245

# Submission time Handle Problem Language Result Execution time Memory
173245 2020-01-03T16:13:35 Z DeD_TihoN Bootfall (IZhO17_bootfall) C++14
65 / 100
 645 ms 16584 KB 
//#pragma GCC optimize ("O3")
#include<bits/stdc++.h>
#include<ext/pb_ds/assoc_container.hpp>
#include<ext/pb_ds/tree_policy.hpp>
#define ff first
#define ss second
#define pb push_back
#define mp make_pair
#define ll long long
#define ld long double
#define all(a) a.begin(),a.end()
#define ull unsigned long long
#define endl '\n'
#define y1 yaumru
#define ios ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
#define iter vector<int>::iterator
using namespace std;
using namespace __gnu_pbds;

template<class T>
using ordered_set=tree<T,null_type,less<T>,rb_tree_tag,tree_order_statistics_node_update>;

template<class T>
using ordered_multiset=tree<T,null_type,less_equal<T>,rb_tree_tag,tree_order_statistics_node_update>;

mt19937 rnd(chrono::steady_clock::now().time_since_epoch().count());
mt19937_64 rnd1(chrono::steady_clock::now().time_since_epoch().count());

//find_by_order
//order_of_key

const int N=500+1;
const int inf=1e9+1e9;
const int mod=1e9+7;
const ld eps=1e-9;
const int M=200000+1;

bitset<M>dp[N];
bitset<M>pref[N];
int a[N];
bool used[N];

main ()
{
    ios;
    int n;
    cin>>n;
    for (int i=1;i<=n;++i){
        cin>>a[i];
    }
    int sum=0;
    bool c1=false;
    bool c2=false;
    for (int i=1;i<=n;++i){
        sum+=a[i];
        if (a[i]%2==1){
            c1=true;
        }
        else {
            c2=true;
        }
    }
    if (c1 && c2){
        cout<<0<<endl;
        exit(0);
    }
    if (sum%2==1){
        cout<<0<<endl;
        exit(0);
    }
    pref[0][0]=1;
    for (int i=1;i<=n;++i){
        pref[i]=(pref[i-1]|(pref[i-1]<<a[i]));
    }
    for (int i=0;i<=n;++i){
        if (i==0){
            dp[i][0]=1;
            for (int j=1;j<=n;++j){
                if (j==i)continue;
                bitset<M>f=(dp[i]<<a[j]);
                dp[i]=(dp[i]|f);
            }
            if (dp[0][sum/2]==0){
                cout<<0<<endl;
                exit(0);
            }
        }
        else {
            if (!used[a[i]]){
                used[a[i]]=true;
                dp[a[i]]=pref[i-1];
                for (int j=i+1;j<=n;++j){
                    if (j==i)continue;
                    bitset<M>f=(dp[a[i]]<<a[j]);
                    dp[a[i]]=(dp[a[i]]|f);
                }
            }
        }
    }
    vector<int>ans;
    for (int i=1;i<=M;++i){
        bool cc=true;
        for (int j=1;j<=n;++j){
            if ((sum-a[j]+i)%2==1){
                cc=false;
                break;
            }
            if ((sum-a[j]+i)%2==0){
                if (dp[a[j]][(sum-a[j]+i)/2]==0){
                    cc=false;
                    break;
                }
            }
        }
        if (cc)ans.pb(i);
    }
    cout<<(int)ans.size()<<endl;
    for (int i=0;i<ans.size();++i){
        cout<<ans[i]<<' ';
    }
}

Compilation message

bootfall.cpp:43:7: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main ()
       ^
bootfall.cpp: In function 'int main()':
bootfall.cpp:118:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i=0;i<ans.size();++i){
                  ~^~~~~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 632 KB Output is correct
2 Correct 3 ms 760 KB Output is correct
3 Correct 2 ms 504 KB Output is correct
4 Correct 3 ms 676 KB Output is correct
5 Correct 4 ms 1144 KB Output is correct
6 Correct 4 ms 888 KB Output is correct
7 Correct 3 ms 760 KB Output is correct
8 Correct 4 ms 1144 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 3 ms 632 KB Output is correct
2 Correct 3 ms 760 KB Output is correct
3 Correct 2 ms 504 KB Output is correct
4 Correct 3 ms 676 KB Output is correct
5 Correct 4 ms 1144 KB Output is correct
6 Correct 4 ms 888 KB Output is correct
7 Correct 3 ms 760 KB Output is correct
8 Correct 4 ms 1144 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 5 ms 1272 KB Output is correct
11 Correct 8 ms 1540 KB Output is correct
12 Correct 8 ms 1532 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 7 ms 1404 KB Output is correct
15 Correct 7 ms 1400 KB Output is correct
16 Correct 7 ms 1532 KB Output is correct
17 Correct 6 ms 1144 KB Output is correct
18 Correct 6 ms 1272 KB Output is correct
19 Correct 7 ms 1400 KB Output is correct
20 Correct 4 ms 1272 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 632 KB Output is correct
2 Correct 3 ms 760 KB Output is correct
3 Correct 2 ms 504 KB Output is correct
4 Correct 3 ms 676 KB Output is correct
5 Correct 4 ms 1144 KB Output is correct
6 Correct 4 ms 888 KB Output is correct
7 Correct 3 ms 760 KB Output is correct
8 Correct 4 ms 1144 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 5 ms 1272 KB Output is correct
11 Correct 8 ms 1540 KB Output is correct
12 Correct 8 ms 1532 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 7 ms 1404 KB Output is correct
15 Correct 7 ms 1400 KB Output is correct
16 Correct 7 ms 1532 KB Output is correct
17 Correct 6 ms 1144 KB Output is correct
18 Correct 6 ms 1272 KB Output is correct
19 Correct 7 ms 1400 KB Output is correct
20 Correct 4 ms 1272 KB Output is correct
21 Correct 27 ms 3192 KB Output is correct
22 Correct 34 ms 3440 KB Output is correct
23 Correct 18 ms 2468 KB Output is correct
24 Correct 47 ms 4088 KB Output is correct
25 Correct 16 ms 3056 KB Output is correct
26 Correct 17 ms 3192 KB Output is correct
27 Correct 16 ms 3192 KB Output is correct
28 Correct 10 ms 3064 KB Output is correct
29 Correct 12 ms 3068 KB Output is correct
30 Correct 2 ms 376 KB Output is correct
31 Correct 37 ms 3704 KB Output is correct
32 Correct 50 ms 4216 KB Output is correct
33 Correct 10 ms 3064 KB Output is correct
34 Correct 9 ms 2936 KB Output is correct
35 Correct 11 ms 3096 KB Output is correct
36 Correct 55 ms 4472 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 632 KB Output is correct
2 Correct 3 ms 760 KB Output is correct
3 Correct 2 ms 504 KB Output is correct
4 Correct 3 ms 676 KB Output is correct
5 Correct 4 ms 1144 KB Output is correct
6 Correct 4 ms 888 KB Output is correct
7 Correct 3 ms 760 KB Output is correct
8 Correct 4 ms 1144 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 5 ms 1272 KB Output is correct
11 Correct 8 ms 1540 KB Output is correct
12 Correct 8 ms 1532 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 7 ms 1404 KB Output is correct
15 Correct 7 ms 1400 KB Output is correct
16 Correct 7 ms 1532 KB Output is correct
17 Correct 6 ms 1144 KB Output is correct
18 Correct 6 ms 1272 KB Output is correct
19 Correct 7 ms 1400 KB Output is correct
20 Correct 4 ms 1272 KB Output is correct
21 Correct 27 ms 3192 KB Output is correct
22 Correct 34 ms 3440 KB Output is correct
23 Correct 18 ms 2468 KB Output is correct
24 Correct 47 ms 4088 KB Output is correct
25 Correct 16 ms 3056 KB Output is correct
26 Correct 17 ms 3192 KB Output is correct
27 Correct 16 ms 3192 KB Output is correct
28 Correct 10 ms 3064 KB Output is correct
29 Correct 12 ms 3068 KB Output is correct
30 Correct 2 ms 376 KB Output is correct
31 Correct 37 ms 3704 KB Output is correct
32 Correct 50 ms 4216 KB Output is correct
33 Correct 10 ms 3064 KB Output is correct
34 Correct 9 ms 2936 KB Output is correct
35 Correct 11 ms 3096 KB Output is correct
36 Correct 55 ms 4472 KB Output is correct
37 Correct 125 ms 6900 KB Output is correct
38 Correct 132 ms 6996 KB Output is correct
39 Correct 18 ms 6520 KB Output is correct
40 Correct 354 ms 11416 KB Output is correct
41 Correct 19 ms 7156 KB Output is correct
42 Correct 273 ms 10016 KB Output is correct
43 Correct 112 ms 7608 KB Output is correct
44 Correct 118 ms 7764 KB Output is correct
45 Correct 119 ms 7804 KB Output is correct
46 Correct 320 ms 11028 KB Output is correct
47 Correct 282 ms 9900 KB Output is correct
48 Correct 49 ms 7032 KB Output is correct
49 Correct 29 ms 6776 KB Output is correct
50 Correct 309 ms 10468 KB Output is correct
51 Correct 2 ms 376 KB Output is correct
52 Correct 85 ms 7824 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 632 KB Output is correct
2 Correct 3 ms 760 KB Output is correct
3 Correct 2 ms 504 KB Output is correct
4 Correct 3 ms 676 KB Output is correct
5 Correct 4 ms 1144 KB Output is correct
6 Correct 4 ms 888 KB Output is correct
7 Correct 3 ms 760 KB Output is correct
8 Correct 4 ms 1144 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 5 ms 1272 KB Output is correct
11 Correct 8 ms 1540 KB Output is correct
12 Correct 8 ms 1532 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 7 ms 1404 KB Output is correct
15 Correct 7 ms 1400 KB Output is correct
16 Correct 7 ms 1532 KB Output is correct
17 Correct 6 ms 1144 KB Output is correct
18 Correct 6 ms 1272 KB Output is correct
19 Correct 7 ms 1400 KB Output is correct
20 Correct 4 ms 1272 KB Output is correct
21 Correct 27 ms 3192 KB Output is correct
22 Correct 34 ms 3440 KB Output is correct
23 Correct 18 ms 2468 KB Output is correct
24 Correct 47 ms 4088 KB Output is correct
25 Correct 16 ms 3056 KB Output is correct
26 Correct 17 ms 3192 KB Output is correct
27 Correct 16 ms 3192 KB Output is correct
28 Correct 10 ms 3064 KB Output is correct
29 Correct 12 ms 3068 KB Output is correct
30 Correct 2 ms 376 KB Output is correct
31 Correct 37 ms 3704 KB Output is correct
32 Correct 50 ms 4216 KB Output is correct
33 Correct 10 ms 3064 KB Output is correct
34 Correct 9 ms 2936 KB Output is correct
35 Correct 11 ms 3096 KB Output is correct
36 Correct 55 ms 4472 KB Output is correct
37 Correct 125 ms 6900 KB Output is correct
38 Correct 132 ms 6996 KB Output is correct
39 Correct 18 ms 6520 KB Output is correct
40 Correct 354 ms 11416 KB Output is correct
41 Correct 19 ms 7156 KB Output is correct
42 Correct 273 ms 10016 KB Output is correct
43 Correct 112 ms 7608 KB Output is correct
44 Correct 118 ms 7764 KB Output is correct
45 Correct 119 ms 7804 KB Output is correct
46 Correct 320 ms 11028 KB Output is correct
47 Correct 282 ms 9900 KB Output is correct
48 Correct 49 ms 7032 KB Output is correct
49 Correct 29 ms 6776 KB Output is correct
50 Correct 309 ms 10468 KB Output is correct
51 Correct 2 ms 376 KB Output is correct
52 Correct 85 ms 7824 KB Output is correct
53 Correct 361 ms 11676 KB Output is correct
54 Correct 472 ms 13068 KB Output is correct
55 Correct 137 ms 10120 KB Output is correct
56 Correct 418 ms 12252 KB Output is correct
57 Correct 157 ms 10240 KB Output is correct
58 Correct 609 ms 14508 KB Output is correct
59 Correct 424 ms 12356 KB Output is correct
60 Correct 2 ms 376 KB Output is correct
61 Correct 422 ms 12560 KB Output is correct
62 Correct 266 ms 10420 KB Output is correct
63 Correct 180 ms 9860 KB Output is correct
64 Correct 175 ms 9584 KB Output is correct
65 Correct 55 ms 8568 KB Output is correct
66 Correct 156 ms 9212 KB Output is correct

Subtask #6
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 632 KB Output is correct
2 Correct 3 ms 760 KB Output is correct
3 Correct 2 ms 504 KB Output is correct
4 Correct 3 ms 676 KB Output is correct
5 Correct 4 ms 1144 KB Output is correct
6 Correct 4 ms 888 KB Output is correct
7 Correct 3 ms 760 KB Output is correct
8 Correct 4 ms 1144 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 5 ms 1272 KB Output is correct
11 Correct 8 ms 1540 KB Output is correct
12 Correct 8 ms 1532 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 7 ms 1404 KB Output is correct
15 Correct 7 ms 1400 KB Output is correct
16 Correct 7 ms 1532 KB Output is correct
17 Correct 6 ms 1144 KB Output is correct
18 Correct 6 ms 1272 KB Output is correct
19 Correct 7 ms 1400 KB Output is correct
20 Correct 4 ms 1272 KB Output is correct
21 Correct 27 ms 3192 KB Output is correct
22 Correct 34 ms 3440 KB Output is correct
23 Correct 18 ms 2468 KB Output is correct
24 Correct 47 ms 4088 KB Output is correct
25 Correct 16 ms 3056 KB Output is correct
26 Correct 17 ms 3192 KB Output is correct
27 Correct 16 ms 3192 KB Output is correct
28 Correct 10 ms 3064 KB Output is correct
29 Correct 12 ms 3068 KB Output is correct
30 Correct 2 ms 376 KB Output is correct
31 Correct 37 ms 3704 KB Output is correct
32 Correct 50 ms 4216 KB Output is correct
33 Correct 10 ms 3064 KB Output is correct
34 Correct 9 ms 2936 KB Output is correct
35 Correct 11 ms 3096 KB Output is correct
36 Correct 55 ms 4472 KB Output is correct
37 Correct 125 ms 6900 KB Output is correct
38 Correct 132 ms 6996 KB Output is correct
39 Correct 18 ms 6520 KB Output is correct
40 Correct 354 ms 11416 KB Output is correct
41 Correct 19 ms 7156 KB Output is correct
42 Correct 273 ms 10016 KB Output is correct
43 Correct 112 ms 7608 KB Output is correct
44 Correct 118 ms 7764 KB Output is correct
45 Correct 119 ms 7804 KB Output is correct
46 Correct 320 ms 11028 KB Output is correct
47 Correct 282 ms 9900 KB Output is correct
48 Correct 49 ms 7032 KB Output is correct
49 Correct 29 ms 6776 KB Output is correct
50 Correct 309 ms 10468 KB Output is correct
51 Correct 2 ms 376 KB Output is correct
52 Correct 85 ms 7824 KB Output is correct
53 Correct 361 ms 11676 KB Output is correct
54 Correct 472 ms 13068 KB Output is correct
55 Correct 137 ms 10120 KB Output is correct
56 Correct 418 ms 12252 KB Output is correct
57 Correct 157 ms 10240 KB Output is correct
58 Correct 609 ms 14508 KB Output is correct
59 Correct 424 ms 12356 KB Output is correct
60 Correct 2 ms 376 KB Output is correct
61 Correct 422 ms 12560 KB Output is correct
62 Correct 266 ms 10420 KB Output is correct
63 Correct 180 ms 9860 KB Output is correct
64 Correct 175 ms 9584 KB Output is correct
65 Correct 55 ms 8568 KB Output is correct
66 Correct 156 ms 9212 KB Output is correct
67 Correct 645 ms 16584 KB Output is correct
68 Correct 26 ms 12664 KB Output is correct
69 Incorrect 362 ms 14820 KB Output isn't correct
70 Halted 0 ms 0 KB -