Submission #837047

#	Time	Username	Problem	Language	Result	Execution time	Memory
837047		MODDI	Hedgehog Daniyar and Algorithms (IZhO19_sortbooks)	C++14	30 / 100	633 ms	10240 KiB

sortbooks

#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define mp make_pair
typedef long long ll;
typedef pair<long long, long long> pll;
typedef pair<int,int> pii;
typedef vector<long long> vl;
typedef vector<int> vi;
int n, m;
vi arr;
int main(){
	ios_base::sync_with_stdio(false);
	cin.tie(0);
	cin>>n>>m;
	for(int i = 0; i < n; i++){
		int a;
		cin>>a;
		arr.pb(a);
	}
	bool s = true;
	if(n <= 5100 && m <= 5100 && s){
		while(m--){
			int l, r, k;
			cin>>l>>r>>k;
			l--; r--;
			bool can = true;
			int maxi = -1e9;
			for(int i = l; i <= r; i++){
				if(maxi > arr[i] && maxi + arr[i] > k){
					can = false;
					break;
				}
				maxi = max(maxi, arr[i]);
			}
			cout<<can<<endl;
		}
	}
	else{
		vi pregrada;
		for(int i = 0; i < n; i++){
			int j =i;
			pregrada.pb(i);
			while(j + 1 < n && arr[j] <= arr[j+1]){
				j++;
			}
			if(j == n-1)	pregrada.pb(n);
			i = j;
		}
		while(m--){
			int l, r, k;
			cin>>l>>r>>k;
			l--;r--;
			int left_border = -1, right_border = -1;
			int levo = 0, desno = pregrada.size()-1;
			while(levo <= desno){
				int mid = (levo + desno) / 2;
				if(pregrada[mid] <= l){
					left_border = mid;
					levo = mid + 1;
				}
				else
					desno = mid - 1;
			}
			levo = 0; desno = pregrada.size()-1;
			while(levo <= desno){
				int mid = (levo + desno) / 2;
				if(pregrada[mid] > r){
					right_border = mid;
					desno = mid - 1;
				}
				else
					levo = mid + 1;
			}
//			cout<<left_border<<" "<<right_border<<endl;
			if(abs(left_border - right_border) != 1)
				cout<<0<<"\n";
			else
				cout<<1<<"\n";
		}
		
	}
	return 0;
}

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