Submission #871038

#	Time	Username	Problem	Language	Result	Execution time	Memory
871038		Ahmed57	NoM (RMI21_nom)	C++17	9 / 100	1035 ms	600 KiB

Main

#include <bits/stdc++.h>
using namespace std;

signed main(){
    ios_base::sync_with_stdio(false);cin.tie(0);
    int n,k;
    cin>>n>>k;
    vector<int>v;
    for(int i = 0;i<n;i++){
        v.push_back(i);v.push_back(i+n);
    }
    sort(v.begin(),v.end());
    long long ans = 0;
    do{
        int la[n]= {0};bool ss = 1;
        for(int i = 0;i<v.size();i++){
            if(la[v[i]%n]!=0){
                if(abs((i+1)-la[v[i]%n])%k==0){
                    ss = 0;
                    break;
                }
            }
            la[v[i]%n] = i+1;
        }
        if(ss)ans++;
    }while(next_permutation(v.begin(),v.end()));
    cout<<ans<<endl;
}

Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:16:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   16 |         for(int i = 0;i<v.size();i++){
      |                       ~^~~~~~~~~

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