Submission #1096641

#TimeUsernameProblemLanguageResultExecution timeMemory
1096641rayan_bdHedgehog Daniyar and Algorithms (IZhO19_sortbooks)C++17
77 / 100
1363 ms262312 KiB
#include <bits/stdc++.h> using namespace std; #define getar(ar,n) for(int i=0;i<n;++i) cin>>ar[i] #define show(n) cout<<n<<'\n' #define all(v) v.begin(), v.end() #define br cout<<"\n" #define pb push_back #define nl '\n' #define yes cout<<"YES\n" #define no cout<<"NO\n" #define ret return #define ld long double #define sza(x) ((int)x.size()) const int mxN = 1e6 + 10; struct Node{ vector<int> vec; int mx=0,bad_mx=0; }; vector<int> ar; vector<Node> seg; int mx=0; void build(int node,int start,int end){ if(start==end){ seg[node].vec={ar[start]}; seg[node].mx=ar[start]; seg[node].bad_mx=0; return; } int mid=start+(end-start)/2; build(node*2+1,start,mid); build(node*2+2,mid+1,end); seg[node].vec.assign(seg[node*2+1].vec.size()+seg[node*2+2].vec.size(),0); merge(all(seg[node*2+1].vec),all(seg[node*2+2].vec),seg[node].vec.begin()); seg[node].mx=max(seg[node*2+1].mx,seg[node*2+2].mx); int mxx=0; for(int i=start;i<=end;++i){ if(mxx>ar[i]){ seg[node].bad_mx=max(seg[node].bad_mx,mxx+ar[i]); }else{ mxx=ar[i]; } } } bool qry(int nd,int start,int end,int l,int r,int k){ if(start>r||end<l) return 1; if(start>=l&&end<=r){ bool f=(max(seg[nd].bad_mx,(mx>seg[nd].vec[0]?mx+*--lower_bound(all(seg[nd].vec),mx):0))<=k); mx=max(mx,seg[nd].mx); return f; } int mid=start+(end-start)/2; return ((!qry(nd*2+1,start,mid,l,r,k)||!qry(nd*2+2,mid+1,end,l,r,k))?0:1); } void solve(){ int n,l,r,w,q;cin>>n>>q; ar.resize(n+1); for(int i=0;i<n;++i){ cin>>ar[i]; } Node dummy_node; dummy_node.vec={}; dummy_node.mx=dummy_node.bad_mx=0; seg.resize((n+10)*4,dummy_node); build(0,0,n-1); while(q--){ cin>>l>>r>>w; mx=0; cout<<(qry(0,0,n-1,l-1,r-1,w))<<nl; } } signed main() { ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); solve(); return 0; }
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