oj.uz

Submission #173243

# Submission time Handle Problem Language Result Execution time Memory
173243 2020-01-03T16:12:51 Z DeD_TihoN Bootfall (IZhO17_bootfall) C++14
65 / 100
 1000 ms 20948 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=250000+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 4 ms 760 KB Output is correct
2 Correct 4 ms 888 KB Output is correct
3 Correct 2 ms 632 KB Output is correct
4 Correct 3 ms 760 KB Output is correct
5 Correct 5 ms 1272 KB Output is correct
6 Correct 4 ms 1016 KB Output is correct
7 Correct 4 ms 868 KB Output is correct
8 Correct 5 ms 1400 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 4 ms 760 KB Output is correct
2 Correct 4 ms 888 KB Output is correct
3 Correct 2 ms 632 KB Output is correct
4 Correct 3 ms 760 KB Output is correct
5 Correct 5 ms 1272 KB Output is correct
6 Correct 4 ms 1016 KB Output is correct
7 Correct 4 ms 868 KB Output is correct
8 Correct 5 ms 1400 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 6 ms 1528 KB Output is correct
11 Correct 10 ms 1784 KB Output is correct
12 Correct 9 ms 1784 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 8 ms 1784 KB Output is correct
15 Correct 8 ms 1656 KB Output is correct
16 Correct 8 ms 1784 KB Output is correct
17 Correct 6 ms 1400 KB Output is correct
18 Correct 7 ms 1656 KB Output is correct
19 Correct 8 ms 1656 KB Output is correct
20 Correct 5 ms 1528 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 760 KB Output is correct
2 Correct 4 ms 888 KB Output is correct
3 Correct 2 ms 632 KB Output is correct
4 Correct 3 ms 760 KB Output is correct
5 Correct 5 ms 1272 KB Output is correct
6 Correct 4 ms 1016 KB Output is correct
7 Correct 4 ms 868 KB Output is correct
8 Correct 5 ms 1400 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 6 ms 1528 KB Output is correct
11 Correct 10 ms 1784 KB Output is correct
12 Correct 9 ms 1784 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 8 ms 1784 KB Output is correct
15 Correct 8 ms 1656 KB Output is correct
16 Correct 8 ms 1784 KB Output is correct
17 Correct 6 ms 1400 KB Output is correct
18 Correct 7 ms 1656 KB Output is correct
19 Correct 8 ms 1656 KB Output is correct
20 Correct 5 ms 1528 KB Output is correct
21 Correct 33 ms 3704 KB Output is correct
22 Correct 39 ms 4144 KB Output is correct
23 Correct 21 ms 3064 KB Output is correct
24 Correct 59 ms 4860 KB Output is correct
25 Correct 20 ms 3704 KB Output is correct
26 Correct 21 ms 3832 KB Output is correct
27 Correct 19 ms 3832 KB Output is correct
28 Correct 15 ms 3704 KB Output is correct
29 Correct 14 ms 3704 KB Output is correct
30 Correct 2 ms 376 KB Output is correct
31 Correct 46 ms 4600 KB Output is correct
32 Correct 64 ms 5240 KB Output is correct
33 Correct 11 ms 3576 KB Output is correct
34 Correct 11 ms 3576 KB Output is correct
35 Correct 15 ms 3704 KB Output is correct
36 Correct 66 ms 5424 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 760 KB Output is correct
2 Correct 4 ms 888 KB Output is correct
3 Correct 2 ms 632 KB Output is correct
4 Correct 3 ms 760 KB Output is correct
5 Correct 5 ms 1272 KB Output is correct
6 Correct 4 ms 1016 KB Output is correct
7 Correct 4 ms 868 KB Output is correct
8 Correct 5 ms 1400 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 6 ms 1528 KB Output is correct
11 Correct 10 ms 1784 KB Output is correct
12 Correct 9 ms 1784 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 8 ms 1784 KB Output is correct
15 Correct 8 ms 1656 KB Output is correct
16 Correct 8 ms 1784 KB Output is correct
17 Correct 6 ms 1400 KB Output is correct
18 Correct 7 ms 1656 KB Output is correct
19 Correct 8 ms 1656 KB Output is correct
20 Correct 5 ms 1528 KB Output is correct
21 Correct 33 ms 3704 KB Output is correct
22 Correct 39 ms 4144 KB Output is correct
23 Correct 21 ms 3064 KB Output is correct
24 Correct 59 ms 4860 KB Output is correct
25 Correct 20 ms 3704 KB Output is correct
26 Correct 21 ms 3832 KB Output is correct
27 Correct 19 ms 3832 KB Output is correct
28 Correct 15 ms 3704 KB Output is correct
29 Correct 14 ms 3704 KB Output is correct
30 Correct 2 ms 376 KB Output is correct
31 Correct 46 ms 4600 KB Output is correct
32 Correct 64 ms 5240 KB Output is correct
33 Correct 11 ms 3576 KB Output is correct
34 Correct 11 ms 3576 KB Output is correct
35 Correct 15 ms 3704 KB Output is correct
36 Correct 66 ms 5424 KB Output is correct
37 Correct 157 ms 8532 KB Output is correct
38 Correct 162 ms 8668 KB Output is correct
39 Correct 22 ms 8184 KB Output is correct
40 Correct 444 ms 13688 KB Output is correct
41 Correct 24 ms 8952 KB Output is correct
42 Correct 342 ms 12272 KB Output is correct
43 Correct 138 ms 9272 KB Output is correct
44 Correct 138 ms 9328 KB Output is correct
45 Correct 145 ms 9516 KB Output is correct
46 Correct 410 ms 13560 KB Output is correct
47 Correct 356 ms 12252 KB Output is correct
48 Correct 55 ms 8696 KB Output is correct
49 Correct 36 ms 8568 KB Output is correct
50 Correct 371 ms 12840 KB Output is correct
51 Correct 7 ms 376 KB Output is correct
52 Correct 97 ms 9592 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 760 KB Output is correct
2 Correct 4 ms 888 KB Output is correct
3 Correct 2 ms 632 KB Output is correct
4 Correct 3 ms 760 KB Output is correct
5 Correct 5 ms 1272 KB Output is correct
6 Correct 4 ms 1016 KB Output is correct
7 Correct 4 ms 868 KB Output is correct
8 Correct 5 ms 1400 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 6 ms 1528 KB Output is correct
11 Correct 10 ms 1784 KB Output is correct
12 Correct 9 ms 1784 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 8 ms 1784 KB Output is correct
15 Correct 8 ms 1656 KB Output is correct
16 Correct 8 ms 1784 KB Output is correct
17 Correct 6 ms 1400 KB Output is correct
18 Correct 7 ms 1656 KB Output is correct
19 Correct 8 ms 1656 KB Output is correct
20 Correct 5 ms 1528 KB Output is correct
21 Correct 33 ms 3704 KB Output is correct
22 Correct 39 ms 4144 KB Output is correct
23 Correct 21 ms 3064 KB Output is correct
24 Correct 59 ms 4860 KB Output is correct
25 Correct 20 ms 3704 KB Output is correct
26 Correct 21 ms 3832 KB Output is correct
27 Correct 19 ms 3832 KB Output is correct
28 Correct 15 ms 3704 KB Output is correct
29 Correct 14 ms 3704 KB Output is correct
30 Correct 2 ms 376 KB Output is correct
31 Correct 46 ms 4600 KB Output is correct
32 Correct 64 ms 5240 KB Output is correct
33 Correct 11 ms 3576 KB Output is correct
34 Correct 11 ms 3576 KB Output is correct
35 Correct 15 ms 3704 KB Output is correct
36 Correct 66 ms 5424 KB Output is correct
37 Correct 157 ms 8532 KB Output is correct
38 Correct 162 ms 8668 KB Output is correct
39 Correct 22 ms 8184 KB Output is correct
40 Correct 444 ms 13688 KB Output is correct
41 Correct 24 ms 8952 KB Output is correct
42 Correct 342 ms 12272 KB Output is correct
43 Correct 138 ms 9272 KB Output is correct
44 Correct 138 ms 9328 KB Output is correct
45 Correct 145 ms 9516 KB Output is correct
46 Correct 410 ms 13560 KB Output is correct
47 Correct 356 ms 12252 KB Output is correct
48 Correct 55 ms 8696 KB Output is correct
49 Correct 36 ms 8568 KB Output is correct
50 Correct 371 ms 12840 KB Output is correct
51 Correct 7 ms 376 KB Output is correct
52 Correct 97 ms 9592 KB Output is correct
53 Correct 448 ms 14116 KB Output is correct
54 Correct 591 ms 15864 KB Output is correct
55 Correct 162 ms 12408 KB Output is correct
56 Correct 518 ms 14992 KB Output is correct
57 Correct 181 ms 12408 KB Output is correct
58 Correct 753 ms 17784 KB Output is correct
59 Correct 526 ms 15352 KB Output is correct
60 Correct 2 ms 376 KB Output is correct
61 Correct 517 ms 15176 KB Output is correct
62 Correct 317 ms 12836 KB Output is correct
63 Correct 210 ms 11896 KB Output is correct
64 Correct 208 ms 11676 KB Output is correct
65 Correct 67 ms 10492 KB Output is correct
66 Correct 194 ms 11348 KB Output is correct

Subtask #6
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 760 KB Output is correct
2 Correct 4 ms 888 KB Output is correct
3 Correct 2 ms 632 KB Output is correct
4 Correct 3 ms 760 KB Output is correct
5 Correct 5 ms 1272 KB Output is correct
6 Correct 4 ms 1016 KB Output is correct
7 Correct 4 ms 868 KB Output is correct
8 Correct 5 ms 1400 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 6 ms 1528 KB Output is correct
11 Correct 10 ms 1784 KB Output is correct
12 Correct 9 ms 1784 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 8 ms 1784 KB Output is correct
15 Correct 8 ms 1656 KB Output is correct
16 Correct 8 ms 1784 KB Output is correct
17 Correct 6 ms 1400 KB Output is correct
18 Correct 7 ms 1656 KB Output is correct
19 Correct 8 ms 1656 KB Output is correct
20 Correct 5 ms 1528 KB Output is correct
21 Correct 33 ms 3704 KB Output is correct
22 Correct 39 ms 4144 KB Output is correct
23 Correct 21 ms 3064 KB Output is correct
24 Correct 59 ms 4860 KB Output is correct
25 Correct 20 ms 3704 KB Output is correct
26 Correct 21 ms 3832 KB Output is correct
27 Correct 19 ms 3832 KB Output is correct
28 Correct 15 ms 3704 KB Output is correct
29 Correct 14 ms 3704 KB Output is correct
30 Correct 2 ms 376 KB Output is correct
31 Correct 46 ms 4600 KB Output is correct
32 Correct 64 ms 5240 KB Output is correct
33 Correct 11 ms 3576 KB Output is correct
34 Correct 11 ms 3576 KB Output is correct
35 Correct 15 ms 3704 KB Output is correct
36 Correct 66 ms 5424 KB Output is correct
37 Correct 157 ms 8532 KB Output is correct
38 Correct 162 ms 8668 KB Output is correct
39 Correct 22 ms 8184 KB Output is correct
40 Correct 444 ms 13688 KB Output is correct
41 Correct 24 ms 8952 KB Output is correct
42 Correct 342 ms 12272 KB Output is correct
43 Correct 138 ms 9272 KB Output is correct
44 Correct 138 ms 9328 KB Output is correct
45 Correct 145 ms 9516 KB Output is correct
46 Correct 410 ms 13560 KB Output is correct
47 Correct 356 ms 12252 KB Output is correct
48 Correct 55 ms 8696 KB Output is correct
49 Correct 36 ms 8568 KB Output is correct
50 Correct 371 ms 12840 KB Output is correct
51 Correct 7 ms 376 KB Output is correct
52 Correct 97 ms 9592 KB Output is correct
53 Correct 448 ms 14116 KB Output is correct
54 Correct 591 ms 15864 KB Output is correct
55 Correct 162 ms 12408 KB Output is correct
56 Correct 518 ms 14992 KB Output is correct
57 Correct 181 ms 12408 KB Output is correct
58 Correct 753 ms 17784 KB Output is correct
59 Correct 526 ms 15352 KB Output is correct
60 Correct 2 ms 376 KB Output is correct
61 Correct 517 ms 15176 KB Output is correct
62 Correct 317 ms 12836 KB Output is correct
63 Correct 210 ms 11896 KB Output is correct
64 Correct 208 ms 11676 KB Output is correct
65 Correct 67 ms 10492 KB Output is correct
66 Correct 194 ms 11348 KB Output is correct
67 Correct 795 ms 20316 KB Output is correct
68 Correct 32 ms 15864 KB Output is correct
69 Correct 416 ms 17944 KB Output is correct
70 Execution timed out 1075 ms 20948 KB Time limit exceeded
71 Halted 0 ms 0 KB -