Submission #1096264

#	Time	Username	Problem	Language	Result	Execution time	Memory
1096264		Muhammet	Hedgehog Daniyar and Algorithms (IZhO19_sortbooks)	C++17	64 / 100	352 ms	262144 KiB

sortbooks

#include <bits/stdc++.h>

using namespace std;

#define sz(s) (int)s.size()
#define ff first
#define ss second
#define ll long long

const int N = 1e6 + 5;

ll n, m, a[N], b[N*4], mmx;

vector <vector <ll>> st;

void bld(int nd, int l, int r){
	if(l == r){
		st[nd].push_back(a[l]);
		return;
	}
	int md = (l + r) / 2;
	bld(nd*2,l,md);
	bld(nd*2+1,md+1,r);
	st[nd].resize(sz(st[nd*2]) + sz(st[nd*2+1]));
	merge(st[nd*2].begin(), st[nd*2].end(), st[nd*2+1].begin(), st[nd*2+1].end(), st[nd].begin());
	ll mx = 0;
	for(int i = l; i <= r; i++){
		if(mx > a[i]) b[nd] = max(b[nd],mx+a[i]);
		mx = max(mx,a[i]);
	}
	return;
}

ll fnd(int nd, int l, int r, int x, int y){
	if(r < x or l > y) return 0;
	if(l >= x and r <= y){
		int t = lower_bound(st[nd].begin(), st[nd].end(), mmx) - st[nd].begin();
		ll k = 0;
		if(t != 0) k = (mmx + st[nd][t-1]);
		// cout << l << ' ' << r << ' ' << mmx << ' ' << k << ' ' << b[nd] << '\n';
		k = max(k,b[nd]);
		mmx = max(mmx,st[nd].back());
		return k;
	}
	int md = (l + r) / 2;
	ll x1 = fnd(nd*2,l,md,x,y);
	ll x2 = fnd(nd*2+1,md+1,r,x,y);
	return max(x1,x2);
}

int main(){
	ios::sync_with_stdio (false); cin.tie(nullptr);
	cin >> n >> m;
	for(int i = 1; i <= n; i++){
		cin >> a[i];
	}
	st.resize(n*4);
	bld(1,1,n);
	for(int i = 1; i <= m; i++){
		ll l, r, k;
		cin >> l >> r >> k;
		mmx = 0;
		int x = fnd(1,1,n,l,r);
		cout << (x > k ? 0 : 1) << '\n';
	}
}

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