Submission #497582

#	Time	Username	Problem	Language	Result	Execution time	Memory
497582		armashka	Hedgehog Daniyar and Algorithms (IZhO19_sortbooks)	C++17	0 / 100	384 ms	262148 KiB

sortbooks

#include <bits/stdc++.h>
 
//#pragma comment(linker, "/stack:200000000")
//#pragma GCC optimize("Ofast")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
 
#define fast ios_base::sync_with_stdio(false);cin.tie(nullptr);cout.tie(nullptr);
#define all(v) v.begin(),v.end()
#define pb push_back
#define sz size()
#define ft first
#define sd second
 
using namespace std;
typedef long long ll;
typedef pair<ll, ll> pll;
typedef unsigned long long ull;
 
const int N = 1e6 + 5;
const ll M = 1e8;
const ll inf = 1e18;
const ll mod = 1e9;
const double Pi = acos(-1); 
 
ll binpow(ll x, ll ti) { ll res = 1;while (ti){if(ti & 1)res *= x;x *= x;ti >>= 1; x %= mod; res %= mod;} return res;}
ll binmul(ll x, ll ti) { ll res = 0;while (ti){if(ti & 1)res += x;x += x;ti >>= 1; x %= mod; res %= mod;} return res;}
ll nok(ll a, ll b) { return (a*b)/__gcd(abs(a),abs(b)) * (a*b > 0 ? 1 : -1); }
bool odd(ll n) { return (n % 2 == 1); }
bool even(ll n) { return (n % 2 == 0); }            
 
ll n, m, a[N], q[N], mx[N][30], lg[N], ans[N];
vector <pair<pll, ll>> pos[N]; 

ll get(ll l, ll r) {
	ll len = (r - l + 1);
	ll k = lg[len];
	return max(mx[l][k], mx[r - (1 << k) + 1][k]);
}

const void solve(/*Armashka*/) {
	cin >> n >> m;
	lg[0] = 1;
	for (int i = 2; i <= n; ++ i) lg[i] = lg[i / 2] + 1;
	for (int i = 1; i <= n; ++ i) {
		cin >> a[i];
		mx[i][0] = a[i];                                 
	}
	for (int i = 1; i <= 25; ++ i) {
		for (int j = 1; j + (1 << (i - 1)) <= n; ++ j) {
			mx[j][i] = max(mx[j][i - 1], mx[j + (1 << (i - 1))][i - 1]); 
		}
	}
	for (int i = 1; i <= m; ++ i) {
		ll l, r, k;
		cin >> l >> r >> k;
		pos[r].pb({{l, k}, i});
	}	
	for (int i = 1; i <= n; ++ i) {
		q[a[i]] = i;
		while (pos[i].sz) {
			ll l = pos[i].back().ft.ft, k = pos[i].back().ft.sd, id = pos[i].back().sd;
			pos[i].pop_back();
			ll res = 0;
			for (int j = 1; j <= 1000; ++ j) {
				if (q[j] <= l) continue;
				ll cur = get(l, q[a[i]]);	
				if (cur > a[i]) res = max(res, cur);			
			}
			if (res <= k) ans[id] = 1;						
		}
	}	
	for (int i = 1; i <= m; ++ i) cout << ans[i] << "\n";
}
            
signed main() {
    fast;
    //freopen("divide.in", "r", stdin);
    //freopen("divide.out", "w", stdout);
    int tt = 1;
    //cin >> tt;
    while (tt --) {                                                
        solve();
    }
}
 
/*
5 4 4
1 2
3 1
3 4
5 3
4 5 2 3
2 1 3 1
1 3 5
2 3 4 5
2 1 3 1
*/

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