Submission #1350217

#TimeUsernameProblemLanguageResultExecution timeMemory
1350217coderg300711Hedgehog Daniyar and Algorithms (IZhO19_sortbooks)C++20
100 / 100
622 ms95096 KiB
#include "bits/stdc++.h"
using namespace std;
#define fi first
#define se second
#define mp make_pair
#define pii pair<int,int>
#define pll pair<long long,long long>
#define yes cout<<"Yes\n"
#define no cout<<"No\n"
#define pb push_back
#define sz(x) (int)(x).size()
#define rsz resize
#define ass assign
#define F(i,l,r) for(int i=(l);i<(r);++i)
typedef long long ll;
typedef unsigned long long ull;
typedef long double lld;
template<typename T> using pqg = priority_queue<T, vector<T>, greater<T>>;
#define each(a,x) for(auto a:x)
#define FOR(i,a) for(int i=0;i<(a);i++)
#define ROF(i,a,b) for(int i=(b)-1;i>=(a);i--)
#define eb emplace_back
#define ft front()
#define V vector

#ifndef ONLINE_JUDGE
#define debug(x) cerr << #x <<" "; _print(x); cerr << endl;
#else
#define debug(x)
#endif

void _print(ll t) {cerr << t;}
void _print(int t) {cerr << t;}
void _print(string t) {cerr << t;}
void _print(char t) {cerr << t;}
void _print(lld t) {cerr << t;}
void _print(double t) {cerr << t;}
void _print(ull t) {cerr << t;}

template <class T, class V> void _print(pair <T, V> p);
template <class T> void _print(vector <T> v);
template <class T> void _print(set <T> v);
template <class T, class V> void _print(map <T, V> v);
template <class T> void _print(multiset <T> v);
template <class T, class V> void _print(pair <T, V> p) {cerr << "{"; _print(p.ff); cerr << ","; _print(p.ss); cerr << "}";}
template <class T> void _print(vector <T> v) {cerr << "[ "; for (T i : v) {_print(i); cerr << " ";} cerr << "]";}
template <class T> void _print(set <T> v) {cerr << "[ "; for (T i : v) {_print(i); cerr << " ";} cerr << "]";}
template <class T> void _print(multiset <T> v) {cerr << "[ "; for (T i : v) {_print(i); cerr << " ";} cerr << "]";}
template <class T, class V> void _print(map <T, V> v) {cerr << "[ "; for (auto i : v) {_print(i); cerr << " ";} cerr << "]";}

const int maxn=1e6+5;

struct ST{
  ll t[maxn*4];
  ST(){
    fill(t,t+4*maxn,0);
  }
  void upd(int n,int b,int e,int i,ll x){
    if(b==e){
      t[n]=max(t[n],x);
      return;
    }
    int mid=(b+e)>>1,l=n<<1,r=l|1;
    if(i<=mid)upd(l,b,mid,i,x);
    else upd(r,mid+1,e,i,x);
    t[n]=max(t[l],t[r]);
  }
  ll query(int n,int b,int e,int i,int j){
    if(b>j || e<i)return 0;
    if(b>=i && e<=j)return t[n];
    int mid=(b+e)>>1,l=n<<1,r=l|1;
    ll L=query(l,b,mid,i,j),R=query(r,mid+1,e,i,j);
    return max(L,R);
  }
} t;

struct que{
  int l,id;
  ll k;
};

void solve(){
int n,m;
cin>>n>>m;
V<ll> w(n+1);
F(i,1,n+1)cin>>w[i];
V<V<que>> ques(n+1);
FOR(i,m){
  int l,r;
  ll k;
  cin>>l>>r>>k;
  ques[r].pb({l,i,k});
}
V<int> res(m),st;
st.reserve(n+1);
F(i,1,n+1){
  //debug(st);
  while(!st.empty() && w[st.back()]<=w[i])st.pop_back();
  if(!st.empty()){
    ll pair_sum=w[st.back()]+w[i];
    t.upd(1,1,n,st.back(),pair_sum);
  }
  st.pb(i);
  each(q,ques[i]){
    if(q.l==i)res[q.id]=1;
    else{
      ll mxsum=t.query(1,1,n,q.l,i);
      res[q.id]=(mxsum<=q.k);
    }
  }
}
FOR(i,m)cout<<res[i]<<'\n';
}

signed main(){
    ios_base::sync_with_stdio(0);cin.tie(nullptr);
   // #ifndef ONLINE_JUDGE
   //   freopen("output.txt", "w", stdout);
   //   freopen("input.txt", "r", stdin);
   //   freopen("Error.txt", "w", stderr);
   // #endif 
    
    int tt=1;
    //cin>>tt;
    while(tt--)solve();

    return 0;
}
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