Submission #173075

#	Time	Username	Problem	Language	Result	Execution time	Memory
173075		LinusTorvaldsFan	Hedgehog Daniyar and Algorithms (IZhO19_sortbooks)	C++14	13 / 100	1049 ms	10680 KiB

sortbooks

#include <bits/stdc++.h>

using namespace std;

int main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	int n,m;
	cin>>n>>m;
	vector<int>a(n);
	for(int i=0;i<n;i++){
		cin>>a[i];
	}
	//set<pair<int,int>> segments;
	vector<int>lefts;
	vector<int>rights;
	for(int i=0;i<n;){
		int j=i;
		while(j+1<n && a[j+1]>=a[j]){
			j++;
		}
		//segments.emplace(i,j);
		lefts.emplace_back(i);
		rights.emplace_back(j);
		//cout<<i<<" "<<j<<endl;
		i=j+1;
	}
	for(;m;m--){
		int l, r,k;
		cin>>l>>r>>k;
		l--;
		r--;
		auto it1=upper_bound(lefts.begin(),lefts.end(),l)-lefts.begin();
		auto it2=lower_bound(rights.begin(),rights.end(),r)-rights.begin();
		it1--;
		if(it1==it2){
			cout<<1<<"\n";
		} else {
			cout<<0<<"\n";
		}
	}
	return 0;
}

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