Submission #236563

#	Time	Username	Problem	Language	Result	Execution time	Memory
236563		kshitij_sodani	Hedgehog Daniyar and Algorithms (IZhO19_sortbooks)	C++17	0 / 100	3060 ms	22636 KiB

sortbooks

#include <bits/stdc++.h>
using namespace std;
typedef int64_t llo;
#define mp make_pair
#define pb push_back
#define a first
#define b second
int n;
int it[1000001];
int aa,bb,cc;
int tree3[4000001];
int tree2[4000001];
void build(int no,int l,int r){
	if(l==r){
		tree3[no]=it[l];
		tree2[no]=it[l];
	}
	else{
		int mid=(l+r)/2;
		build(no*2+1,l,mid);
		build(no*2+2,mid+1,r);
		tree3[no]=max(tree3[no*2+1],tree3[no*2+2]);
		if(tree2[no*2+2]==-1 or tree2[no*2+1]==-1){
			tree2[no]=-1;
		}
		else{
			if(tree2[no*2+2]<tree3[no*2+1]){
				tree2[no]=-1;
			}
			else{
				tree2[no]=tree2[no*2+1];
			}
		}
		
	}
}
int ans=0;
int ma=0;
int ko=0;
void query(int no,int l,int r,int aa,int bb){
	if(r<aa or l>bb){
		return;
	}
	if(aa<=l and r<=bb){
	//	ans=max(ans,tree2[no]);
			if(tree2[no]<ma or tree2[no]==-1){
				ans=it[l];
			}
			ma=max(ma,tree3[no]);
			return;
		ma=max(tree3[no],ma);
	}
	else{
		int mid=(l+r)/2;
		query(no*2+1,l,mid,aa,bb);
		query(no*2+2,mid+1,r,aa,bb);

	}
}

int main(){
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	int m;
	cin>>n>>m;

	for(int i=0;i<n;i++){
		cin>>it[i];
	}
	

	build(0,0,n-1);
	for(int i=0;i<m;i++){
		cin>>aa>>bb>>cc;
		aa-=1;
		bb-=1;
		ans=0;
		ma=0;
		query(0,0,n-1,aa,bb);
		cout<<((ans<=cc)?1:0)<<endl;
	}


	return 0;
}

• Subtask 1: 0 / 8
• Subtask 2: 0 / 9
• Subtask 3: 0 / 13
• Subtask 4: 0 / 17
• Subtask 5: 0 / 30
• Subtask 6: 0 / 23