Submission #597761

#	Time	Username	Problem	Language	Result	Execution time	Memory
597761		ThegeekKnight16	NoM (RMI21_nom)	C++14	9 / 100	1077 ms	308 KiB

Main

#include <bits/stdc++.h>
using namespace std;
const int MAXN = 4e3 + 10;
vector<int> v;
int pos[MAXN];

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    int N, M;
    cin >> N >> M;
    for (int i = 1; i <= 2*N; i++) v.push_back(i);
    
    int resp = 0; 
    do
    {
        bool b = true;
        
        for (int i = 0; i < 2*N; i++) pos[v[i]] = i;
        
        for (int i = 1; i <= N; i++) if (abs(pos[i] - pos[i+N]) % M == 0) b = false;
        
        resp += b;
    }
    while (next_permutation(v.begin(), v.end()));
    cout << resp;
    //cerr << 50*(10 * 9 * 8 * 7 * 6 * 5 * 4 * 3 * 2 * 1);
}

• Subtask 1: 9 / 9
• Subtask 2: 0 / 12
• Subtask 3: 0 / 13
• Subtask 4: 0 / 18
• Subtask 5: 0 / 48