oj.uz

Submission #916948

# Submission time Handle Problem Language Result Execution time Memory
916948 2024-01-26T20:13:46 Z andrei_iorgulescu DEL13 (info1cup18_del13) C++14
0 / 100
 500 ms 14956 KB 
#include <bits/stdc++.h>

using namespace std;

int n,q,p[100005];
vector<bool> dp[100005];///pot sa fac primele i a.i sa am las j in grupul de dupa?
vector<pair<int,int>> pre[100005];///daca dp[i][j] e adevarat, fac operatia op[i][j] si merg in starea pre[i][j]
vector<pair<int,int>> op[100005];

bool orr(bool xx,bool yy)
{
    if (xx == true or yy == true)
        return true;
    return false;
}

void solveq1()
{
    int parl,parr;
    if (p[1] % 2 == 1)
        parl = 0;
    else
        parl = 1;
    if ((n - p[1]) % 2 == 1)
        parr = 1;
    else
        parr = 0;
    if (parl != parr)
    {
        cout << -1 << '\n';
        return;
    }
    if (parl == 1)
    {
        cout << (n - 1) / 2 << '\n';
        int mijl = p[1] / 2;
        int cate = (n - 1) / 2;
        for (int i = 1; i <= p[1] - mijl - 1; i++)
            cout << mijl << ' ',cate--;
        int mijr = (2 * n - p[1] + 1) / 2;
        for (int i = mijr + 1; i <= n; i++)
            cout << mijr << ' ',cate--;
        for (int i = 1; i <= cate; i++)
            cout << p[1] << ' ';
        cout << '\n';
        return;
    }
    if (p[1] == 1 or p[1] == n)
    {
        if (n == 1)
        {
            cout << 0 << '\n' << '\n';
            return;
        }
        cout << -1 << '\n';
        return;
    }
    int mijl = p[1] / 2;
    cout << (n - 1) / 2 << '\n';
    for (int i = 1; i < mijl; i++)
        cout << mijl << ' ';
    int dif = n - p[1];
    int mijr = n - (dif / 2) + 1;
    for (int i = 1; i < dif / 2; i++)
        cout << mijr << ' ';
    cout << p[1] << ' ' << p[1] << '\n';
}

void testcase()
{
    cin >> n >> q;
    for (int i = 1; i <= q; i++)
        cin >> p[i];
    if (q == 0)
    {
        if (n == 0)
        {
            cout << 0 << '\n' << '\n';
        }
        else
            cout << -1 << '\n';
        return;
    }
    if (q == 1)
    {
        solveq1();
        return;
    }
    p[q + 1] = n + 1;
    for (int i = 1; i <= q; i++)
    {
        dp[i].resize(p[i + 1] - p[i],false);
        pre[i].resize(p[i + 1] - p[i],{0,0});
        op[i].resize(p[i + 1] - p[i],{0,0});
        for (int j = 0; j <= p[i + 1] - p[i] - 1; j++)
        {
            dp[i][j] = false;
            pre[i][j] = {0,0};
            op[i][j] = {0,0};
        }
    }
    for (int j = 0; j <= p[2] - p[1] - 1; j++)
    {
        ///raman j pe spatiu
        if (j == p[2] - p[1] - 1)
        {
            if (p[1] == 1)
                dp[1][j] = true;
            else
                dp[1][j] = false;
        }
        else
        {
            int nrop = p[2] - p[1] - 1 - j;
            if (nrop >= p[1] or (p[1] - 1 - nrop) % 2 != 0)
                dp[1][j] = false;
            else
                dp[1][j] = true;
        }
        //cout << (int)dp[1][j] << ' ';
    }
    //cout << '\n';
    for (int i = 2; i <= q; i++)
    {
        for (int j = 0; j <= p[i + 1] - p[i] - 1; j++)
        {
            int nrop = p[i + 1] - p[i] - 1 - j;
            ///vin din dp[i - 1][q], q >= nrop si q de aceeasi paritate cu nrop
            ///partea proasta e cand nrop = 0,q = p[i] - p[i - 1] - 1
            if (nrop != 0)
            {
                for (int qq = nrop; qq <= p[i] - p[i - 1] - 1; qq += 2)
                    dp[i][j] = orr(dp[i - 1][qq],dp[i][j]);
            }
            else
            {
                for (int qq = nrop; qq <= p[i] - p[i - 1] - 1; qq += 2)
                    if (qq != p[i] - p[i - 1] - 1 or p[i] - p[i - 1] - 1 == 0)
                        dp[i][j] = orr(dp[i - 1][qq],dp[i][j]);
            }
            //cout << (int)dp[i][j] << ' ';
        }
        //cout << '\n';
    }
    bool ans = false;
    for (int i = 0; i <= n - p[q]; i += 2)
    {
        if (i != n - p[q])
            ans = orr(ans,dp[q][i]);
        else if (n == p[q])
            ans = orr(ans,dp[q][i]);
    }
    if (ans == true)
        cout << 0 << '\n' << '\n';
    else
        cout << -1 << '\n';
}

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    int tc;
    cin >> tc;
    while (tc--)
        testcase();
    return 0;
}

Subtask #1
0.0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 9052 KB Output isn't correct
2 Correct 3 ms 9048 KB Output is partially correct

Subtask #2
0.0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 9052 KB Output isn't correct
2 Correct 3 ms 9048 KB Output is partially correct
3 Incorrect 4 ms 9048 KB Integer 0 violates the range [1, 17]
4 Correct 5 ms 9048 KB Output is partially correct

Subtask #3
0.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 11096 KB Output is partially correct
2 Execution timed out 777 ms 11652 KB Time limit exceeded

Subtask #4
0.0 / 25.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 9052 KB Output isn't correct
2 Correct 3 ms 9048 KB Output is partially correct
3 Incorrect 4 ms 9048 KB Integer 0 violates the range [1, 17]
4 Correct 5 ms 9048 KB Output is partially correct
5 Correct 3 ms 9048 KB Output is partially correct
6 Correct 3 ms 9052 KB Output is partially correct
7 Correct 3 ms 9052 KB Output is partially correct

Subtask #5
0.0 / 30.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 9052 KB Output isn't correct
2 Correct 3 ms 9048 KB Output is partially correct
3 Incorrect 4 ms 9048 KB Integer 0 violates the range [1, 17]
4 Correct 5 ms 9048 KB Output is partially correct
5 Correct 3 ms 9048 KB Output is partially correct
6 Correct 3 ms 9052 KB Output is partially correct
7 Correct 3 ms 9052 KB Output is partially correct
8 Execution timed out 529 ms 11448 KB Time limit exceeded
9 Execution timed out 645 ms 12628 KB Time limit exceeded
10 Execution timed out 522 ms 12940 KB Time limit exceeded
11 Execution timed out 565 ms 14956 KB Time limit exceeded