oj.uz

답안 #671821

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
671821 2022-12-14T03:44:26 Z Alihan_8 Bootfall (IZhO17_bootfall) C++17
28 / 100
 30 ms 980 KB 
#include <bits/stdc++.h>
// include <ext/pb_ds/assoc_container.hpp>
// include <ext/pb_ds/tree_policy.hpp>
// using namespace __gnu_pbds;
using namespace std;
#define all(x) x.begin(), x.end()
#define pb push_back
// define ordered_set tree<int,null_type,less_equal<int>,rb_tree_tag,tree_order_statistics_node_update>
#define mpr make_pair
#define ln '\n'
void IO(string name){freopen((name+".in").c_str(),"r",stdin); freopen((name+".out").c_str(),"w",stdout);}
#define int long long
signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);

    int n; cin >> n;
    vector <int> p(n);
    for ( auto &i: p ) cin >> i;
    int sum = accumulate(all(p), 0ll);
    vector <int> dp(sum+1); dp[0] = 1;
    for ( auto val: p ){
        for ( int j = sum; j >= val; j-- ) dp[j] += dp[j-val];
    }
    if ( sum & 1 or !dp[sum >> 1] ){
        cout << "0\n";
        return 0;
    }
    const int N = 25001;
    vector <int> cnt(N), ans;
    for ( auto val: p ){
        for ( int j = val; j <= sum; j++ ) dp[j] -= dp[j-val];
        for ( int i = 0; i <= N; i++ ){
            int cur = sum-val+i;
            if ( cur & 1 or cur/2 < i ) continue;
            cnt[i] += dp[cur/2-i] > 0 or dp[cur/2];
        }
        for ( int j = sum; j >= val; j-- ) dp[j] += dp[j-val];
    }
    for ( int i = 0; i < (int)cnt.size(); i++ ){
        if ( cnt[i] == n ) ans.pb(i);
    }
    cout << (int)ans.size() << ln;
    for ( auto i: ans ) cout << i << ' ';

    cout << '\n';
}

Compilation message

bootfall.cpp: In function 'void IO(std::string)':
bootfall.cpp:11:29: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 | void IO(string name){freopen((name+".in").c_str(),"r",stdin); freopen((name+".out").c_str(),"w",stdout);}
      |                      ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
bootfall.cpp:11:70: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 | void IO(string name){freopen((name+".in").c_str(),"r",stdin); freopen((name+".out").c_str(),"w",stdout);}
      |                                                               ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
6.0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 1 ms 468 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 1 ms 468 KB Output is correct

Subtask #2
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 1 ms 468 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 2 ms 468 KB Output is correct
11 Correct 2 ms 468 KB Output is correct
12 Correct 2 ms 468 KB Output is correct
13 Correct 2 ms 468 KB Output is correct
14 Correct 1 ms 468 KB Output is correct
15 Correct 2 ms 468 KB Output is correct
16 Correct 1 ms 468 KB Output is correct
17 Correct 1 ms 468 KB Output is correct
18 Correct 2 ms 468 KB Output is correct
19 Correct 1 ms 468 KB Output is correct
20 Correct 1 ms 468 KB Output is correct

Subtask #3
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 1 ms 468 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 2 ms 468 KB Output is correct
11 Correct 2 ms 468 KB Output is correct
12 Correct 2 ms 468 KB Output is correct
13 Correct 2 ms 468 KB Output is correct
14 Correct 1 ms 468 KB Output is correct
15 Correct 2 ms 468 KB Output is correct
16 Correct 1 ms 468 KB Output is correct
17 Correct 1 ms 468 KB Output is correct
18 Correct 2 ms 468 KB Output is correct
19 Correct 1 ms 468 KB Output is correct
20 Correct 1 ms 468 KB Output is correct
21 Correct 3 ms 468 KB Output is correct
22 Correct 3 ms 468 KB Output is correct
23 Correct 2 ms 468 KB Output is correct
24 Correct 5 ms 596 KB Output is correct
25 Correct 6 ms 596 KB Output is correct
26 Correct 7 ms 596 KB Output is correct
27 Correct 6 ms 596 KB Output is correct
28 Correct 6 ms 596 KB Output is correct
29 Correct 6 ms 596 KB Output is correct
30 Correct 5 ms 468 KB Output is correct
31 Correct 7 ms 596 KB Output is correct
32 Correct 6 ms 596 KB Output is correct
33 Correct 5 ms 596 KB Output is correct
34 Correct 6 ms 596 KB Output is correct
35 Correct 6 ms 600 KB Output is correct
36 Correct 7 ms 596 KB Output is correct

Subtask #4
0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 1 ms 468 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 2 ms 468 KB Output is correct
11 Correct 2 ms 468 KB Output is correct
12 Correct 2 ms 468 KB Output is correct
13 Correct 2 ms 468 KB Output is correct
14 Correct 1 ms 468 KB Output is correct
15 Correct 2 ms 468 KB Output is correct
16 Correct 1 ms 468 KB Output is correct
17 Correct 1 ms 468 KB Output is correct
18 Correct 2 ms 468 KB Output is correct
19 Correct 1 ms 468 KB Output is correct
20 Correct 1 ms 468 KB Output is correct
21 Correct 3 ms 468 KB Output is correct
22 Correct 3 ms 468 KB Output is correct
23 Correct 2 ms 468 KB Output is correct
24 Correct 5 ms 596 KB Output is correct
25 Correct 6 ms 596 KB Output is correct
26 Correct 7 ms 596 KB Output is correct
27 Correct 6 ms 596 KB Output is correct
28 Correct 6 ms 596 KB Output is correct
29 Correct 6 ms 596 KB Output is correct
30 Correct 5 ms 468 KB Output is correct
31 Correct 7 ms 596 KB Output is correct
32 Correct 6 ms 596 KB Output is correct
33 Correct 5 ms 596 KB Output is correct
34 Correct 6 ms 596 KB Output is correct
35 Correct 6 ms 600 KB Output is correct
36 Correct 7 ms 596 KB Output is correct
37 Correct 21 ms 800 KB Output is correct
38 Correct 22 ms 852 KB Output is correct
39 Incorrect 30 ms 980 KB Output isn't correct
40 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 1 ms 468 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 2 ms 468 KB Output is correct
11 Correct 2 ms 468 KB Output is correct
12 Correct 2 ms 468 KB Output is correct
13 Correct 2 ms 468 KB Output is correct
14 Correct 1 ms 468 KB Output is correct
15 Correct 2 ms 468 KB Output is correct
16 Correct 1 ms 468 KB Output is correct
17 Correct 1 ms 468 KB Output is correct
18 Correct 2 ms 468 KB Output is correct
19 Correct 1 ms 468 KB Output is correct
20 Correct 1 ms 468 KB Output is correct
21 Correct 3 ms 468 KB Output is correct
22 Correct 3 ms 468 KB Output is correct
23 Correct 2 ms 468 KB Output is correct
24 Correct 5 ms 596 KB Output is correct
25 Correct 6 ms 596 KB Output is correct
26 Correct 7 ms 596 KB Output is correct
27 Correct 6 ms 596 KB Output is correct
28 Correct 6 ms 596 KB Output is correct
29 Correct 6 ms 596 KB Output is correct
30 Correct 5 ms 468 KB Output is correct
31 Correct 7 ms 596 KB Output is correct
32 Correct 6 ms 596 KB Output is correct
33 Correct 5 ms 596 KB Output is correct
34 Correct 6 ms 596 KB Output is correct
35 Correct 6 ms 600 KB Output is correct
36 Correct 7 ms 596 KB Output is correct
37 Correct 21 ms 800 KB Output is correct
38 Correct 22 ms 852 KB Output is correct
39 Incorrect 30 ms 980 KB Output isn't correct
40 Halted 0 ms 0 KB -

Subtask #6
0 / 35.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 1 ms 468 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 2 ms 468 KB Output is correct
11 Correct 2 ms 468 KB Output is correct
12 Correct 2 ms 468 KB Output is correct
13 Correct 2 ms 468 KB Output is correct
14 Correct 1 ms 468 KB Output is correct
15 Correct 2 ms 468 KB Output is correct
16 Correct 1 ms 468 KB Output is correct
17 Correct 1 ms 468 KB Output is correct
18 Correct 2 ms 468 KB Output is correct
19 Correct 1 ms 468 KB Output is correct
20 Correct 1 ms 468 KB Output is correct
21 Correct 3 ms 468 KB Output is correct
22 Correct 3 ms 468 KB Output is correct
23 Correct 2 ms 468 KB Output is correct
24 Correct 5 ms 596 KB Output is correct
25 Correct 6 ms 596 KB Output is correct
26 Correct 7 ms 596 KB Output is correct
27 Correct 6 ms 596 KB Output is correct
28 Correct 6 ms 596 KB Output is correct
29 Correct 6 ms 596 KB Output is correct
30 Correct 5 ms 468 KB Output is correct
31 Correct 7 ms 596 KB Output is correct
32 Correct 6 ms 596 KB Output is correct
33 Correct 5 ms 596 KB Output is correct
34 Correct 6 ms 596 KB Output is correct
35 Correct 6 ms 600 KB Output is correct
36 Correct 7 ms 596 KB Output is correct
37 Correct 21 ms 800 KB Output is correct
38 Correct 22 ms 852 KB Output is correct
39 Incorrect 30 ms 980 KB Output isn't correct
40 Halted 0 ms 0 KB -