oj.uz

Submission #566434

# Submission time Handle Problem Language Result Execution time Memory
566434 2022-05-22T10:05:16 Z RealSnake Bootfall (IZhO17_bootfall) C++14
13 / 100
 1000 ms 468 KB 
#include "bits/stdc++.h"
using namespace std;

#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
typedef tree<int, null_type, less<int>, rb_tree_tag, tree_order_statistics_node_update> ordered_set;

#define ll long long
#define mod 1000000007

ofstream fout(".out");
ifstream fin(".in");

int n;
ll arr[501], dp[250001];
ll sum;
bool ans[250001];

void remove(ll x) {
    for(int i = x; i <= sum; i++)
        dp[i] = (dp[i] - dp[i - x]) % mod;
}

void add(ll x) {
    for(int i = sum; i >= x; i--)
        dp[i] = (dp[i] + dp[i - x]) % mod;
}

signed main() {

    ios::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);

    cin >> n;
    for(int i = 0; i < n; i++) {
        cin >> arr[i];
        sum += arr[i];
    }
    dp[0] = 1;
    for(int i = 0; i < n; i++) {
        for(int j = sum; j >= arr[i]; j--)
            dp[j] = (dp[j] + dp[j - arr[i]]) % mod;
    }
    if(sum % 2 || !dp[sum / 2]) {
        cout << 0;
        return 0;
    }
    for(int i = 1; i <= sum; i++)
        ans[i] = 1;
    int anss = sum;
    for(int i = 0; i < n; i++) {
        remove(arr[i]);
        for(int j = 1; j <= sum; j++) {
            if(!ans[j])
                continue;
            ll x = sum - arr[i] + j;
            add(j);
            if(j % 2 != arr[i] % 2 || !dp[x / 2]) {
                ans[j] = 0;
                anss--;
            }
            remove(j);
        }
        add(arr[i]);
    }
    cout << anss << "\n";
    for(int i = 1; i <= sum; i++) {
        if(ans[i])
            cout << i << " ";
    }

    return 0;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 2 ms 340 KB Output is correct
5 Correct 7 ms 468 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 13 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 2 ms 340 KB Output is correct
5 Correct 7 ms 468 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 13 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 2 ms 336 KB Output is correct
11 Correct 2 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 2 ms 336 KB Output is correct
15 Correct 2 ms 340 KB Output is correct
16 Correct 2 ms 336 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 2 ms 340 KB Output is correct
19 Correct 2 ms 340 KB Output is correct
20 Correct 2 ms 340 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 2 ms 340 KB Output is correct
5 Correct 7 ms 468 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 13 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 2 ms 336 KB Output is correct
11 Correct 2 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 2 ms 336 KB Output is correct
15 Correct 2 ms 340 KB Output is correct
16 Correct 2 ms 336 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 2 ms 340 KB Output is correct
19 Correct 2 ms 340 KB Output is correct
20 Correct 2 ms 340 KB Output is correct
21 Correct 492 ms 464 KB Output is correct
22 Correct 649 ms 460 KB Output is correct
23 Correct 219 ms 340 KB Output is correct
24 Execution timed out 1075 ms 340 KB Time limit exceeded
25 Halted 0 ms 0 KB -

Subtask #4
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 2 ms 340 KB Output is correct
5 Correct 7 ms 468 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 13 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 2 ms 336 KB Output is correct
11 Correct 2 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 2 ms 336 KB Output is correct
15 Correct 2 ms 340 KB Output is correct
16 Correct 2 ms 336 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 2 ms 340 KB Output is correct
19 Correct 2 ms 340 KB Output is correct
20 Correct 2 ms 340 KB Output is correct
21 Correct 492 ms 464 KB Output is correct
22 Correct 649 ms 460 KB Output is correct
23 Correct 219 ms 340 KB Output is correct
24 Execution timed out 1075 ms 340 KB Time limit exceeded
25 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 2 ms 340 KB Output is correct
5 Correct 7 ms 468 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 13 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 2 ms 336 KB Output is correct
11 Correct 2 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 2 ms 336 KB Output is correct
15 Correct 2 ms 340 KB Output is correct
16 Correct 2 ms 336 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 2 ms 340 KB Output is correct
19 Correct 2 ms 340 KB Output is correct
20 Correct 2 ms 340 KB Output is correct
21 Correct 492 ms 464 KB Output is correct
22 Correct 649 ms 460 KB Output is correct
23 Correct 219 ms 340 KB Output is correct
24 Execution timed out 1075 ms 340 KB Time limit exceeded
25 Halted 0 ms 0 KB -

Subtask #6
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 2 ms 340 KB Output is correct
5 Correct 7 ms 468 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 13 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 2 ms 336 KB Output is correct
11 Correct 2 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 2 ms 336 KB Output is correct
15 Correct 2 ms 340 KB Output is correct
16 Correct 2 ms 336 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 2 ms 340 KB Output is correct
19 Correct 2 ms 340 KB Output is correct
20 Correct 2 ms 340 KB Output is correct
21 Correct 492 ms 464 KB Output is correct
22 Correct 649 ms 460 KB Output is correct
23 Correct 219 ms 340 KB Output is correct
24 Execution timed out 1075 ms 340 KB Time limit exceeded
25 Halted 0 ms 0 KB -