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Submission #889842

# Submission time Handle Problem Language Result Execution time Memory
889842 2023-12-20T08:07:44 Z heeheeheehaaw Beautiful row (IZhO12_beauty) C++17
0 / 100
 57 ms 2652 KB 
#include <iostream>

using namespace std;

int dp[1049000][21];
int v[25];

int nr2(int n)
{
    int nr = 0;
    while(n >= 1)
    {
        if(n % 2 == 1)
            nr++;
        n /= 2;
    }

    return nr;
}

int nr3(int n)
{
    int nr = 0;
    while(n >= 1)
    {
        if(n % 3 == 1)
            nr++;
        n /= 3;
    }

    return nr;
}

signed main()
{
    int n;
    cin>>n;
    for(int i = 0; i < n; i++)
        cin>>v[i];

    for(int mask = 1; mask < (1 << n); mask++)
    {
        int nr = 0, b = 0;
        for(int i = 0; i < n; i++)
            if(((1 << i) & mask) != 0)
                nr++, b = i;
        if(nr == 1)
        {
            dp[mask][b] = 1;
        }
        else
        {
            for(int i = 0; i < n; i++)
            {
                if(((1 << i) & mask) != 0)
                {
                    for(int j = 0; j < n; j++)
                    {
                        if(((1 << j) & (mask ^ (1 << i))) == 0)
                            continue;
                        if(nr3(v[j]) == nr3(v[i]) || nr2(v[j]) == nr2(v[i]))
                        {
                            dp[mask][i] += dp[(mask ^ (1 << i))][j];
                        }
                    }
                }
            }
        }
    }

    int rez = 0;
    for(int i = 0; i < n; i++)
        rez += dp[(1 << n) - 1][i];
    cout<<rez;
    return 0;
}

Subtask #1
0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 2 ms 344 KB Output is correct
11 Incorrect 57 ms 2652 KB Output isn't correct
12 Halted 0 ms 0 KB -