oj.uz

Submission #173231

# Submission time Handle Problem Language Result Execution time Memory
173231 2020-01-03T15:47:02 Z DeD_TihoN Bootfall (IZhO17_bootfall) C++14
65 / 100
 979 ms 6692 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;
const int M1=195000;

int a[N];
bool used[N];
bitset<M1>dp[N];
bitset<M>dp1[N];

main ()
{
    ios;
    int n;
    cin>>n;
    for (int i=1;i<=n;++i){
        cin>>a[i];
    }
    if (n<=350){
        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);
        }
        for (int i=0;i<=n;++i){
            if (i==0){
                dp1[i][0]=1;
                for (int j=1;j<=n;++j){
                    if (j==i)continue;
                    bitset<M>f=(dp1[i]<<a[j]);
                    dp1[i]=(dp1[i]|f);
                }
                if (dp1[0][sum/2]==0){
                    cout<<0<<endl;
                    exit(0);
                }
            }
            else {
                if (!used[a[i]]){
                    used[a[i]]=true;
                    dp1[a[i]][0]=1;
                    for (int j=1;j<=n;++j){
                        if (j==i)continue;
                        bitset<M>f=(dp1[a[i]]<<a[j]);
                        dp1[a[i]]=(dp1[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 (dp1[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]<<' ';
        }
    }
    else {
        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);
        }
        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<M1>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]][0]=1;
                    for (int j=1;j<=n;++j){
                        if (j==i)continue;
                        bitset<M1>f=(dp[a[i]]<<a[j]);
                        dp[a[i]]=(dp[a[i]]|f);
                    }
                }
            }
        }
        vector<int>ans;
        for (int i=1;i<=M1;++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:44:7: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main ()
       ^
bootfall.cpp: In function 'int main()':
bootfall.cpp:116:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (int i=0;i<ans.size();++i){
                      ~^~~~~~~~~~~
bootfall.cpp:184:23: 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 504 KB Output is correct
2 Correct 3 ms 636 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 3 ms 504 KB Output is correct
5 Correct 5 ms 760 KB Output is correct
6 Correct 4 ms 632 KB Output is correct
7 Correct 3 ms 632 KB Output is correct
8 Correct 4 ms 760 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 504 KB Output is correct
2 Correct 3 ms 636 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 3 ms 504 KB Output is correct
5 Correct 5 ms 760 KB Output is correct
6 Correct 4 ms 632 KB Output is correct
7 Correct 3 ms 632 KB Output is correct
8 Correct 4 ms 760 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 4 ms 504 KB Output is correct
11 Correct 7 ms 760 KB Output is correct
12 Correct 7 ms 760 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 7 ms 760 KB Output is correct
15 Correct 6 ms 632 KB Output is correct
16 Correct 7 ms 760 KB Output is correct
17 Correct 5 ms 760 KB Output is correct
18 Correct 6 ms 760 KB Output is correct
19 Correct 6 ms 760 KB Output is correct
20 Correct 3 ms 504 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 504 KB Output is correct
2 Correct 3 ms 636 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 3 ms 504 KB Output is correct
5 Correct 5 ms 760 KB Output is correct
6 Correct 4 ms 632 KB Output is correct
7 Correct 3 ms 632 KB Output is correct
8 Correct 4 ms 760 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 4 ms 504 KB Output is correct
11 Correct 7 ms 760 KB Output is correct
12 Correct 7 ms 760 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 7 ms 760 KB Output is correct
15 Correct 6 ms 632 KB Output is correct
16 Correct 7 ms 760 KB Output is correct
17 Correct 5 ms 760 KB Output is correct
18 Correct 6 ms 760 KB Output is correct
19 Correct 6 ms 760 KB Output is correct
20 Correct 3 ms 504 KB Output is correct
21 Correct 31 ms 1528 KB Output is correct
22 Correct 38 ms 1528 KB Output is correct
23 Correct 21 ms 1272 KB Output is correct
24 Correct 52 ms 1784 KB Output is correct
25 Correct 12 ms 764 KB Output is correct
26 Correct 12 ms 760 KB Output is correct
27 Correct 12 ms 632 KB Output is correct
28 Correct 8 ms 632 KB Output is correct
29 Correct 8 ms 632 KB Output is correct
30 Correct 2 ms 376 KB Output is correct
31 Correct 35 ms 1272 KB Output is correct
32 Correct 57 ms 1788 KB Output is correct
33 Correct 5 ms 504 KB Output is correct
34 Correct 6 ms 508 KB Output is correct
35 Correct 8 ms 632 KB Output is correct
36 Correct 64 ms 2044 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 504 KB Output is correct
2 Correct 3 ms 636 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 3 ms 504 KB Output is correct
5 Correct 5 ms 760 KB Output is correct
6 Correct 4 ms 632 KB Output is correct
7 Correct 3 ms 632 KB Output is correct
8 Correct 4 ms 760 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 4 ms 504 KB Output is correct
11 Correct 7 ms 760 KB Output is correct
12 Correct 7 ms 760 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 7 ms 760 KB Output is correct
15 Correct 6 ms 632 KB Output is correct
16 Correct 7 ms 760 KB Output is correct
17 Correct 5 ms 760 KB Output is correct
18 Correct 6 ms 760 KB Output is correct
19 Correct 6 ms 760 KB Output is correct
20 Correct 3 ms 504 KB Output is correct
21 Correct 31 ms 1528 KB Output is correct
22 Correct 38 ms 1528 KB Output is correct
23 Correct 21 ms 1272 KB Output is correct
24 Correct 52 ms 1784 KB Output is correct
25 Correct 12 ms 764 KB Output is correct
26 Correct 12 ms 760 KB Output is correct
27 Correct 12 ms 632 KB Output is correct
28 Correct 8 ms 632 KB Output is correct
29 Correct 8 ms 632 KB Output is correct
30 Correct 2 ms 376 KB Output is correct
31 Correct 35 ms 1272 KB Output is correct
32 Correct 57 ms 1788 KB Output is correct
33 Correct 5 ms 504 KB Output is correct
34 Correct 6 ms 508 KB Output is correct
35 Correct 8 ms 632 KB Output is correct
36 Correct 64 ms 2044 KB Output is correct
37 Correct 125 ms 2024 KB Output is correct
38 Correct 133 ms 2108 KB Output is correct
39 Correct 9 ms 508 KB Output is correct
40 Correct 448 ms 4520 KB Output is correct
41 Correct 9 ms 504 KB Output is correct
42 Correct 347 ms 3804 KB Output is correct
43 Correct 99 ms 1528 KB Output is correct
44 Correct 102 ms 1528 KB Output is correct
45 Correct 103 ms 1700 KB Output is correct
46 Correct 429 ms 4472 KB Output is correct
47 Correct 342 ms 3832 KB Output is correct
48 Correct 37 ms 888 KB Output is correct
49 Correct 19 ms 632 KB Output is correct
50 Correct 387 ms 4472 KB Output is correct
51 Correct 2 ms 376 KB Output is correct
52 Correct 68 ms 1144 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 504 KB Output is correct
2 Correct 3 ms 636 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 3 ms 504 KB Output is correct
5 Correct 5 ms 760 KB Output is correct
6 Correct 4 ms 632 KB Output is correct
7 Correct 3 ms 632 KB Output is correct
8 Correct 4 ms 760 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 4 ms 504 KB Output is correct
11 Correct 7 ms 760 KB Output is correct
12 Correct 7 ms 760 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 7 ms 760 KB Output is correct
15 Correct 6 ms 632 KB Output is correct
16 Correct 7 ms 760 KB Output is correct
17 Correct 5 ms 760 KB Output is correct
18 Correct 6 ms 760 KB Output is correct
19 Correct 6 ms 760 KB Output is correct
20 Correct 3 ms 504 KB Output is correct
21 Correct 31 ms 1528 KB Output is correct
22 Correct 38 ms 1528 KB Output is correct
23 Correct 21 ms 1272 KB Output is correct
24 Correct 52 ms 1784 KB Output is correct
25 Correct 12 ms 764 KB Output is correct
26 Correct 12 ms 760 KB Output is correct
27 Correct 12 ms 632 KB Output is correct
28 Correct 8 ms 632 KB Output is correct
29 Correct 8 ms 632 KB Output is correct
30 Correct 2 ms 376 KB Output is correct
31 Correct 35 ms 1272 KB Output is correct
32 Correct 57 ms 1788 KB Output is correct
33 Correct 5 ms 504 KB Output is correct
34 Correct 6 ms 508 KB Output is correct
35 Correct 8 ms 632 KB Output is correct
36 Correct 64 ms 2044 KB Output is correct
37 Correct 125 ms 2024 KB Output is correct
38 Correct 133 ms 2108 KB Output is correct
39 Correct 9 ms 508 KB Output is correct
40 Correct 448 ms 4520 KB Output is correct
41 Correct 9 ms 504 KB Output is correct
42 Correct 347 ms 3804 KB Output is correct
43 Correct 99 ms 1528 KB Output is correct
44 Correct 102 ms 1528 KB Output is correct
45 Correct 103 ms 1700 KB Output is correct
46 Correct 429 ms 4472 KB Output is correct
47 Correct 342 ms 3832 KB Output is correct
48 Correct 37 ms 888 KB Output is correct
49 Correct 19 ms 632 KB Output is correct
50 Correct 387 ms 4472 KB Output is correct
51 Correct 2 ms 376 KB Output is correct
52 Correct 68 ms 1144 KB Output is correct
53 Correct 433 ms 4156 KB Output is correct
54 Correct 528 ms 4344 KB Output is correct
55 Correct 118 ms 1500 KB Output is correct
56 Correct 504 ms 4700 KB Output is correct
57 Correct 134 ms 1656 KB Output is correct
58 Correct 763 ms 6008 KB Output is correct
59 Correct 449 ms 3832 KB Output is correct
60 Correct 2 ms 376 KB Output is correct
61 Correct 462 ms 3932 KB Output is correct
62 Correct 249 ms 2552 KB Output is correct
63 Correct 160 ms 1880 KB Output is correct
64 Correct 153 ms 1912 KB Output is correct
65 Correct 37 ms 760 KB Output is correct
66 Correct 139 ms 1604 KB Output is correct

Subtask #6
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 504 KB Output is correct
2 Correct 3 ms 636 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 3 ms 504 KB Output is correct
5 Correct 5 ms 760 KB Output is correct
6 Correct 4 ms 632 KB Output is correct
7 Correct 3 ms 632 KB Output is correct
8 Correct 4 ms 760 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 4 ms 504 KB Output is correct
11 Correct 7 ms 760 KB Output is correct
12 Correct 7 ms 760 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 7 ms 760 KB Output is correct
15 Correct 6 ms 632 KB Output is correct
16 Correct 7 ms 760 KB Output is correct
17 Correct 5 ms 760 KB Output is correct
18 Correct 6 ms 760 KB Output is correct
19 Correct 6 ms 760 KB Output is correct
20 Correct 3 ms 504 KB Output is correct
21 Correct 31 ms 1528 KB Output is correct
22 Correct 38 ms 1528 KB Output is correct
23 Correct 21 ms 1272 KB Output is correct
24 Correct 52 ms 1784 KB Output is correct
25 Correct 12 ms 764 KB Output is correct
26 Correct 12 ms 760 KB Output is correct
27 Correct 12 ms 632 KB Output is correct
28 Correct 8 ms 632 KB Output is correct
29 Correct 8 ms 632 KB Output is correct
30 Correct 2 ms 376 KB Output is correct
31 Correct 35 ms 1272 KB Output is correct
32 Correct 57 ms 1788 KB Output is correct
33 Correct 5 ms 504 KB Output is correct
34 Correct 6 ms 508 KB Output is correct
35 Correct 8 ms 632 KB Output is correct
36 Correct 64 ms 2044 KB Output is correct
37 Correct 125 ms 2024 KB Output is correct
38 Correct 133 ms 2108 KB Output is correct
39 Correct 9 ms 508 KB Output is correct
40 Correct 448 ms 4520 KB Output is correct
41 Correct 9 ms 504 KB Output is correct
42 Correct 347 ms 3804 KB Output is correct
43 Correct 99 ms 1528 KB Output is correct
44 Correct 102 ms 1528 KB Output is correct
45 Correct 103 ms 1700 KB Output is correct
46 Correct 429 ms 4472 KB Output is correct
47 Correct 342 ms 3832 KB Output is correct
48 Correct 37 ms 888 KB Output is correct
49 Correct 19 ms 632 KB Output is correct
50 Correct 387 ms 4472 KB Output is correct
51 Correct 2 ms 376 KB Output is correct
52 Correct 68 ms 1144 KB Output is correct
53 Correct 433 ms 4156 KB Output is correct
54 Correct 528 ms 4344 KB Output is correct
55 Correct 118 ms 1500 KB Output is correct
56 Correct 504 ms 4700 KB Output is correct
57 Correct 134 ms 1656 KB Output is correct
58 Correct 763 ms 6008 KB Output is correct
59 Correct 449 ms 3832 KB Output is correct
60 Correct 2 ms 376 KB Output is correct
61 Correct 462 ms 3932 KB Output is correct
62 Correct 249 ms 2552 KB Output is correct
63 Correct 160 ms 1880 KB Output is correct
64 Correct 153 ms 1912 KB Output is correct
65 Correct 37 ms 760 KB Output is correct
66 Correct 139 ms 1604 KB Output is correct
67 Correct 979 ms 6692 KB Output is correct
68 Correct 8 ms 504 KB Output is correct
69 Incorrect 307 ms 2412 KB Output isn't correct
70 Halted 0 ms 0 KB -