제출 #942479

#제출 시각아이디문제언어결과실행 시간메모리
942479MilosMilutinovicSushi (JOI16_sushi)C++14
100 / 100
5335 ms105440 KiB
#include<bits/stdc++.h> #define pb push_back #define fi first #define se second #define mp make_pair using namespace std; typedef long long ll; typedef unsigned long long ull; typedef pair<int,int> pii; typedef pair<ll,ll> pll; typedef long double ld; template <typename T> bool chkmin(T &x,T y){return x>y?x=y,1:0;} template <typename T> bool chkmax(T &x,T y){return x<y?x=y,1:0;} ll readint(){ ll x=0,f=1; char ch=getchar(); while(ch<'0'||ch>'9'){if(ch=='-')f=-1;ch=getchar();} while(ch>='0'&&ch<='9'){x=x*10+ch-'0';ch=getchar();} return x*f; } const int blk=700; int n,q; int x[400005],idx[400005],fl[400005],fr[400005]; priority_queue<int> all[400005],vals[400005]; int ins(int i,int v){ if(all[i].top()<=v) return v; int ret=all[i].top(); vals[i].push(-v); all[i].pop(); all[i].push(v); return ret; } void push(int i){ for(int j=fl[i];j<=fr[i];j++){ if(!vals[i].empty()&&x[j]>-vals[i].top()){ vals[i].push(-x[j]); x[j]=-vals[i].top(); vals[i].pop(); } } while(!vals[i].empty()) vals[i].pop(); } void build(int i){ while(!all[i].empty()) all[i].pop(); for(int j=fl[i];j<=fr[i];j++){ all[i].push(x[j]); } } int update(int l,int r,int v){ if(idx[l]==idx[r]){ push(idx[l]); for(int i=l;i<=r;i++){ if(v<x[i]) swap(v,x[i]); } build(idx[l]); return v; } push(idx[l]); for(int i=l;i<=fr[idx[l]];i++){ if(v<x[i]) swap(v,x[i]); } build(idx[l]); for(int i=idx[l]+1;i<idx[r];i++){ v=ins(i,v); } push(idx[r]); for(int i=fl[idx[r]];i<=r;i++){ if(v<x[i]) swap(v,x[i]); } build(idx[r]); return v; } int main(){ n=readint(); q=readint(); for(int i=1;i<=n;i++) x[i]=readint(); for(int i=0;i<=n;i++) fl[i]=1e9,fr[i]=-1; for(int i=1;i<=n;i++){ idx[i]=i/blk; fl[idx[i]]=min(fl[idx[i]],i); fr[idx[i]]=max(fr[idx[i]],i); all[idx[i]].push(x[i]); } while(q--){ int l=readint(),r=readint(),v=readint(); if(l<=r){ fflush(stdout); v=update(l,r,v); }else{ v=update(l,n,v); v=update(1,r,v); } printf("%d\n",v); } }
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