제출 #960900

#제출 시각아이디문제언어결과실행 시간메모리
960900pcc동기화 (JOI13_synchronization)C++17
30 / 100
337 ms19944 KiB
#include <bits/stdc++.h> using namespace std; #define ll long long #define pll pair<ll,ll> #define pii pair<int,int> #define fs first #define sc second #define tlll tuple<ll,ll,ll> const int mxn = 1e5+10; set<int> ls,rs; int N,M,Q; int op[mxn*2]; bitset<mxn> done; struct SEG{ #define mid ((l+r)>>1) pii seg[mxn*4]; SEG(){ for(auto &i:seg)i.fs = i.sc = -1e9; } void modify(int now,int l,int r,int s,int e,int v){ if(l>=s&&e>=r){ seg[now].sc = max(seg[now].sc,v); return; } if(mid>=s)modify(now*2+1,l,mid,s,e,v); if(mid<e)modify(now*2+2,mid+1,r,s,e,v); seg[now].fs = max({seg[now*2+1].fs,seg[now*2+1].sc,seg[now*2+2].fs,seg[now*2+2].sc}); return; } int getval(int now,int l,int r,int s,int e){ if(l>=s&&e>=r)return max(seg[now].fs,seg[now].sc); if(mid>=e)return max(seg[now].sc,getval(now*2+1,l,mid,s,e)); else if(mid<s)return max(seg[now].sc,getval(now*2+2,mid+1,r,s,e)); else return max({seg[now].sc,getval(now*2+1,l,mid,s,e),getval(now*2+2,mid+1,r,s,e)}); } #undef mid }; SEG lseg,rseg; int main(){ ios::sync_with_stdio(0);cin.tie(0);cout.tie(0); cin>>N>>M>>Q; for(int i = 1;i<N;i++){ int a; cin>>a>>a; } for(int i = 1;i<=M;i++)cin>>op[i]; for(int i = 1;i<=N;i++){ ls.insert(i); rs.insert(i); lseg.modify(0,1,N,i,i,-i); rseg.modify(0,1,N,i,i,i); } for(int i = 1;i<=M;i++){ int id = op[i]; if(done[id]){ done[id] = false; ls.insert(id); rs.insert(id+1); continue; } done[id] = true; ls.erase(id); rs.erase(id+1); auto lp = *(--rs.upper_bound(id)); auto rp = *(ls.lower_bound(id+1)); lseg.modify(0,1,N,lp,rp,lseg.getval(0,1,N,lp,rp)); rseg.modify(0,1,N,lp,rp,rseg.getval(0,1,N,lp,rp)); } while(Q--){ int k; cin>>k; cout<<rseg.getval(0,1,N,k,k)+lseg.getval(0,1,N,k,k)+1<<'\n'; } return 0; }
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