Submission #1117577

#	Time	Username	Problem	Language	Result	Execution time	Memory
1117577		vjudge1	Hedgehog Daniyar and Algorithms (IZhO19_sortbooks)	C++17	17 / 100	229 ms	33608 KiB

sortbooks

#include <bits/stdc++.h>
#define pb push_back
#define pf push_front
#define ll long long
#define F first
#define S second
#define all(v) (v).begin(),(v).end()
#define ull unsigned long long
#define int long long
#define asdasd ios_base::sync_with_stdio(0);cin.tie(0);

using namespace std;

mt19937 rng( chrono::steady_clock::now().time_since_epoch().count());

long long rand( long long l, long long r )
{
    uniform_int_distribution <long long> uid( l, r );
    return uid( rng );
}

ll lcm(ll x, ll y){
	return x / __gcd(x,y) * y;
}

const int mod = 1e9 + 7;

const ll inf = 1e18;

const int maxn = 1e6 + 6;

int n,m,a[maxn],x[maxn],y[maxn],z[maxn],t[maxn * 4],pref[maxn];

void build(int v = 1, int tl = 1, int tr = n){
	if(tl == tr){
		t[v] = a[tl];
		return;
	}
	
	int tm = (tl + tr) >> 1;
	
	build(v + v, tl, tm);
	build(v + v + 1, tm + 1, tr);
	
	t[v] = min(t[v + v], t[v + v + 1]);
}

int get(int l, int r, int v = 1, int tl = 1, int tr = n){
	if(tl > r || l > tr) return 2e9;
	
	if(l <= tl && tr <= r){
		return t[v];
	}
	
	int tm = (tl + tr) >> 1;
		
	return min(get(l,r,v+v,tl,tm),get(l,r,v+v+1,tm+1,tr));
}

void solve(){
	
	cin >> n >> m;
	
	bool ok1 = 0;
	
	for(int i = 1; i <= n; i++){
		cin >> a[i];
	}
	
	for(int i = 1; i <= m; i++){
		cin >> x[i] >> y[i] >> z[i];
		if(ok1 && get(x[i],y[i]) <= z[i]){
			ok1 = 0;
		}
	}
	
	if(ok1){
		for(int i = 1; i <= n; i++){
			if(a[i] < a[i - 1]){
				pref[i] = 1;
			}
		}
		for(int i = 1; i <= n; i++){
			pref[i] += pref[i - 1];
		}
	}
	
	if(n <= 5000 && m <= 5000){
		for(int i = 1; i <= m; i++){
			int l = x[i],r = y[i];
			int mx = a[l];
			bool ok = 1;
			for(int j = l+1; j <= r; j++){
				if(mx > a[j] && mx + a[j] > z[i]){
					ok = 0;
					break;
				}
				mx = max(mx, a[j]);
			}
			
			if(ok){
				cout << "1\n";
			}
			else {
				cout << "0\n";
			}
		}
	}
	else if(ok1){
		for(int i = 1; i <= m; i++){
			int l = x[i],r = y[i];
			
			int xx = pref[r] - pref[l];			
			
			if(xx){
				cout << "0\n";
			}
			else {
				cout << "1\n";
			}
			
		}
	}
	
}

signed main(){

	asdasd

	int tt = 1;

	while(tt--){
		solve();
	}

	return 0;
}

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