oj.uz

Submission #566673

# Submission time Handle Problem Language Result Execution time Memory
566673 2022-05-22T15:25:55 Z Rifal Bootfall (IZhO17_bootfall) C++14
13 / 100
 146 ms 2392 KB 
#include <bits/stdc++.h>
#include <fstream>
#define endl '\n'
#define mod 1000000007
#define INF -100000000000000000
//#define ll long long
//#define cin fin
//#define cout fout
using namespace std;
//ofstream fout("convention.out");
//ifstream fin("convention.in");
const int M = 250005;
long long dp[M];
long long cnt[M];
void add(int x)
{
    for(int i = M-1; i >= x; i--)
    {
        dp[i] += dp[i-x]%mod;
        dp[i] %= mod;
    }
}
void remo(int x)
{
    for(int i = x; i < M; i++)
    {
        dp[i] -= dp[i-x]%mod;
        dp[i] %= mod;
    }
}
int main()
{
    ios_base::sync_with_stdio(0);cout.tie(0);cin.tie(0);
    int n;
    cin >> n;
    int arr[n];
    long long sum = 0;
    dp[0] = 1;
    for(int i = 0; i < n; i++)
    {
        cin >> arr[i];
        add(arr[i]);
        sum += arr[i];
    }
    if(sum%2 == 1 || dp[sum/2] == 0)
    {
        cout << 0 << endl;
        return 0;
    }
    for(int i = 0; i < n; i++)
    {
        remo(arr[i]);
        sum -= arr[i];
        for(long long j = 0; j <= sum/2; j++)
        {
            if(dp[j] >= 1)
            {

                cnt[sum-(j*2)]++;
            }
        }

        add(arr[i]);
        sum += arr[i];
    }
    vector<int> ans;
    for(int i = 0; i < M; i++)
    {
        if(cnt[i] == n)
            ans.push_back(i);
    }
    cout << ans.size() << endl;
    for(int i = 0; i < ans.size(); i++)
        cout << ans[i] << ' ';
    return 0;
}

Compilation message

bootfall.cpp: In function 'int main()':
bootfall.cpp:73:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   73 |     for(int i = 0; i < ans.size(); i++)
      |                    ~~^~~~~~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 2260 KB Output is correct
2 Correct 15 ms 2260 KB Output is correct
3 Correct 4 ms 2260 KB Output is correct
4 Correct 11 ms 2260 KB Output is correct
5 Correct 27 ms 2260 KB Output is correct
6 Correct 20 ms 2260 KB Output is correct
7 Correct 17 ms 2284 KB Output is correct
8 Correct 30 ms 2284 KB Output is correct
9 Correct 23 ms 2260 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 2260 KB Output is correct
2 Correct 15 ms 2260 KB Output is correct
3 Correct 4 ms 2260 KB Output is correct
4 Correct 11 ms 2260 KB Output is correct
5 Correct 27 ms 2260 KB Output is correct
6 Correct 20 ms 2260 KB Output is correct
7 Correct 17 ms 2284 KB Output is correct
8 Correct 30 ms 2284 KB Output is correct
9 Correct 23 ms 2260 KB Output is correct
10 Correct 71 ms 2392 KB Output is correct
11 Correct 74 ms 2260 KB Output is correct
12 Correct 65 ms 2284 KB Output is correct
13 Correct 64 ms 2264 KB Output is correct
14 Correct 71 ms 2260 KB Output is correct
15 Correct 68 ms 2264 KB Output is correct
16 Correct 75 ms 2260 KB Output is correct
17 Correct 47 ms 2276 KB Output is correct
18 Correct 58 ms 2268 KB Output is correct
19 Correct 60 ms 2260 KB Output is correct
20 Correct 69 ms 2268 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 2260 KB Output is correct
2 Correct 15 ms 2260 KB Output is correct
3 Correct 4 ms 2260 KB Output is correct
4 Correct 11 ms 2260 KB Output is correct
5 Correct 27 ms 2260 KB Output is correct
6 Correct 20 ms 2260 KB Output is correct
7 Correct 17 ms 2284 KB Output is correct
8 Correct 30 ms 2284 KB Output is correct
9 Correct 23 ms 2260 KB Output is correct
10 Correct 71 ms 2392 KB Output is correct
11 Correct 74 ms 2260 KB Output is correct
12 Correct 65 ms 2284 KB Output is correct
13 Correct 64 ms 2264 KB Output is correct
14 Correct 71 ms 2260 KB Output is correct
15 Correct 68 ms 2264 KB Output is correct
16 Correct 75 ms 2260 KB Output is correct
17 Correct 47 ms 2276 KB Output is correct
18 Correct 58 ms 2268 KB Output is correct
19 Correct 60 ms 2260 KB Output is correct
20 Correct 69 ms 2268 KB Output is correct
21 Incorrect 146 ms 2288 KB Output isn't correct
22 Halted 0 ms 0 KB -

Subtask #4
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 2260 KB Output is correct
2 Correct 15 ms 2260 KB Output is correct
3 Correct 4 ms 2260 KB Output is correct
4 Correct 11 ms 2260 KB Output is correct
5 Correct 27 ms 2260 KB Output is correct
6 Correct 20 ms 2260 KB Output is correct
7 Correct 17 ms 2284 KB Output is correct
8 Correct 30 ms 2284 KB Output is correct
9 Correct 23 ms 2260 KB Output is correct
10 Correct 71 ms 2392 KB Output is correct
11 Correct 74 ms 2260 KB Output is correct
12 Correct 65 ms 2284 KB Output is correct
13 Correct 64 ms 2264 KB Output is correct
14 Correct 71 ms 2260 KB Output is correct
15 Correct 68 ms 2264 KB Output is correct
16 Correct 75 ms 2260 KB Output is correct
17 Correct 47 ms 2276 KB Output is correct
18 Correct 58 ms 2268 KB Output is correct
19 Correct 60 ms 2260 KB Output is correct
20 Correct 69 ms 2268 KB Output is correct
21 Incorrect 146 ms 2288 KB Output isn't correct
22 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 2260 KB Output is correct
2 Correct 15 ms 2260 KB Output is correct
3 Correct 4 ms 2260 KB Output is correct
4 Correct 11 ms 2260 KB Output is correct
5 Correct 27 ms 2260 KB Output is correct
6 Correct 20 ms 2260 KB Output is correct
7 Correct 17 ms 2284 KB Output is correct
8 Correct 30 ms 2284 KB Output is correct
9 Correct 23 ms 2260 KB Output is correct
10 Correct 71 ms 2392 KB Output is correct
11 Correct 74 ms 2260 KB Output is correct
12 Correct 65 ms 2284 KB Output is correct
13 Correct 64 ms 2264 KB Output is correct
14 Correct 71 ms 2260 KB Output is correct
15 Correct 68 ms 2264 KB Output is correct
16 Correct 75 ms 2260 KB Output is correct
17 Correct 47 ms 2276 KB Output is correct
18 Correct 58 ms 2268 KB Output is correct
19 Correct 60 ms 2260 KB Output is correct
20 Correct 69 ms 2268 KB Output is correct
21 Incorrect 146 ms 2288 KB Output isn't correct
22 Halted 0 ms 0 KB -

Subtask #6
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 2260 KB Output is correct
2 Correct 15 ms 2260 KB Output is correct
3 Correct 4 ms 2260 KB Output is correct
4 Correct 11 ms 2260 KB Output is correct
5 Correct 27 ms 2260 KB Output is correct
6 Correct 20 ms 2260 KB Output is correct
7 Correct 17 ms 2284 KB Output is correct
8 Correct 30 ms 2284 KB Output is correct
9 Correct 23 ms 2260 KB Output is correct
10 Correct 71 ms 2392 KB Output is correct
11 Correct 74 ms 2260 KB Output is correct
12 Correct 65 ms 2284 KB Output is correct
13 Correct 64 ms 2264 KB Output is correct
14 Correct 71 ms 2260 KB Output is correct
15 Correct 68 ms 2264 KB Output is correct
16 Correct 75 ms 2260 KB Output is correct
17 Correct 47 ms 2276 KB Output is correct
18 Correct 58 ms 2268 KB Output is correct
19 Correct 60 ms 2260 KB Output is correct
20 Correct 69 ms 2268 KB Output is correct
21 Incorrect 146 ms 2288 KB Output isn't correct
22 Halted 0 ms 0 KB -