Submission #1102102

#	Time	Username	Problem	Language	Result	Execution time	Memory
1102102		dead0ne	Longest beautiful sequence (IZhO17_subsequence)	C++17	0 / 100	58 ms	164484 KiB

subsequence

#pragma GCC optimize("unroll-loops,Ofast,O3")
#include <bits/stdc++.h>
#define pb push_back
#define mp make_pair
#define spc << " " <<
#define endl "\n"
#define all(x) x.begin(), x.end()
//#define int long long
#define ii pair<long long,int>
#define vi vector<int>
#define vii vector<ii>
#define st first
#define nd second
#define mid (l+r)/2
#define inf 1e15
#define MOD 1000000007
#define MX 1505
using namespace std;

ii dp[1<<10][1<<10][10];

void solve(){
    int n; cin >> n;
    int a[n], k[n];
    for(int i=0; i<n; i++) cin >> a[i];
    for(int i=0; i<n; i++) cin >> k[i];
    for(int i=0; i<1<<10; i++) for(int j=0; j<1<<10; j++) for(int k=0; k<10; k++) dp[i][j][k]={0, -1};
    int ans=0, bestie=0;
    int pre[n];
    pre[0]=-1;
    for(int i=0; i<n; i++){
        ii cur={a[i]>>10, a[i]&((1<<10)-1)};
        int res=1;
        for(int j=0; j<1<<10; j++){
            if(k[i]-__builtin_popcount(cur.st&j)>=10) continue;
            if(dp[j][cur.nd][k[i]-__builtin_popcount(cur.st&j)].st+1>res){
                res = dp[j][cur.nd][k[i]-__builtin_popcount(cur.st&j)].st+1;
                pre[i] = dp[j][cur.nd][k[i]-__builtin_popcount(cur.st&j)].nd;
            }
        }
        if(res>ans){
            ans=res;
            bestie=i;
        }
        for(int j=0; j<1<<10; j++){
            if(res > dp[cur.st][j][__builtin_popcount(cur.nd&j)].st){
                dp[cur.st][j][__builtin_popcount(cur.nd&j)].st = res;
                dp[cur.st][j][__builtin_popcount(cur.nd&j)].nd = i;
            }
        }
    }
    cout << ans << endl;
    vi wow;
    while(bestie>-1){
        wow.pb(bestie);
        bestie=pre[bestie];
    }
    for(int i=wow.size()-1; i>=0; i--) cout << wow[i]+1 << " ";
}

 
signed main(){
    ios_base::sync_with_stdio(false);cin.tie(0);
    #ifdef Local
    freopen("in","r",stdin);
    freopen("out","w",stdout);
    #endif
 
    /*freopen(".in","r",stdin);
    freopen(".out","w",stdout);*/

    int t=1;
    //cin >> t;
    while(t--) solve();
}

• Subtask 1: 0 / 7
• Subtask 2: 0 / 16
• Subtask 3: 0 / 17
• Subtask 4: 0 / 60