제출 #1098770

#제출 시각아이디문제언어결과실행 시간메모리
1098770sitablechairLongest beautiful sequence (IZhO17_subsequence)C++17
0 / 100
28 ms66132 KiB
#include <bits/stdc++.h> #define ll long long #define ldb long double #define endl '\n' #define For(i,l,r) for(int i=l;i<=r;i++) #define ForD(i,r,l) for(int i=r;i>=l;i--) #define REP(i,l,r) For(i,l,r-1) #define PER(i,r,l) ForD(i,r-1,l) #define ff first #define ss second #define pb push_back #define all(x) x.begin(),x.end() #define All(x,n) x+1,x+1+n #define Alll(x,n) x,x+n #define sz(x) (signed)x.size() #define unq(x) x.resize(unique(all(x))-x.begin()) #define mpa make_pair #define LF 10 #define RG 10 #define getLeft(x) x&((1<<LF)-1) #define getRight(x) x>>LF #ifdef NCGM #include"debug.h" #else #define debug(...) "fr"; #endif using namespace std; const int N=1e5+3; int n,pre[1<<LF][1<<RG][LF+1],pre1[1<<LF][1<<RG][LF+1]; int a[N],k[N],f[N],op[N]; void mxm(int &x,int y) { x=max(x,y); } int main() { cin.tie(0)->sync_with_stdio(0); cin >> n; For(i,1,n) cin >> a[i]; For(i,1,n) cin >> k[i]; For(i,1,n) { f[i]=1; op[i]=0; For(j,0,(1<<RG)-1) { int cnt=__builtin_popcount(j&getRight(a[i])); if (cnt>k[i]) continue; if (pre[getLeft(a[i])][j][k[i]-cnt]+1>f[i]) { f[i]=pre[getLeft(a[i])][j][k[i]-cnt]+1; op[i]=pre1[getLeft(a[i])][j][k[i]-cnt]; } } For(j,0,(1<<LF)-1) { if (pre[j][getRight(a[i])][__builtin_popcount(j&getLeft(a[i]))]<f[i]) { pre[j][getRight(a[i])][__builtin_popcount(j&getLeft(a[i]))]=f[i]; pre1[j][getRight(a[i])][__builtin_popcount(j&getLeft(a[i]))]=i; } } } int ans=0,lst=-1; For(i,1,n) if (f[i]>ans) ans=f[i],lst=i; vector<int> track; while(lst!=0) { track.pb(lst); lst=op[lst]; } cout << sz(track) << endl; reverse(all(track)); for(auto el: track) cout << el << " "; // cout << ans << endl; return 0; }
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