Submission #701981

#	Time	Username	Problem	Language	Result	Execution time	Memory
701981		Darren0724	Beautiful row (IZhO12_beauty)	C++17	0 / 100	5 ms	1236 KiB

beauty

#include <bits/stdc++.h>
using namespace std;
#define all(x) x.begin(),x.end()



int main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0);
    int n;cin>>n;
    vector<int> v(n);
    vector<int> a(n),b(n);
    for(int i=0;i<n;i++){
        cin>>v[i];
    }
    for(int i=0;i<n;i++){
        int p=v[i];
        while(p>0){
            if(p%3==1){
                a[i]++;
            }
            p/=3;
        }
        p=v[i];
        while(p>0){
            if(p%2==1){
                b[i]++;
            }
            p/=2;
        }
    }
    vector<vector<int>> dp(n,vector<int>(1<<n));
    for(int i=0;i<n;i++){
        dp[i][1<<i]=1;
    }
    for(int i=1;i<(1<<n);i++){
        for(int j=0;j<n;j++){
            if(i&(1<<j)){
                for(int k1=0;k1<n;k1++){
                    if(a[j]==a[k1]||b[j]==b[k1]){
                        dp[j][i]+=dp[k1][i-(1<<j)];
                    }
                }
            }
        }
    }
    int ans=0;
    for(int i=0;i<n;i++){
        ans+=dp[i][(1<<n)-1];
    }
    cout<<ans<<endl;
	return 0;
}

• Subtask 1: 0 / 100