Submission #245436

#	Time	Username	Problem	Language	Result	Execution time	Memory
245436		Yera	Hedgehog Daniyar and Algorithms (IZhO19_sortbooks)	C++17	0 / 100	2205 ms	99448 KiB

sortbooks

// In The Name Of God
//#pragma GCC optimize("Ofast,no-stack-protector,unroll-loops,fast-math,O3")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#include <iostream>
#include <iomanip>
#include <fstream>
#include <vector>
#include <set>
#include <map>
#include <cstring>
#include <string>
#include <bitset>
#include <cmath>
#include <cassert>
#include <ctime>
#include <algorithm>
#include <sstream>
#include <list>
#include <queue>
#include <deque>
#include <stack>
#include <cstdlib>
#include <cstdio>
#include <iterator>
#include <functional>
#include <unordered_set>
#include <unordered_map>
using namespace std;
using ll = long long;
using ld = long double;
using ull = unsigned long long;

#define f first
#define s second
#define pb push_back
#define mp make_pair
#define sagyndym_seni ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0)
#define sz(x) (int)x.size()
#define all(x) x.begin(), x.end()

const ll N = 1e6+5, p1 = 911382323, p2 = 972663749, INF = 1e9+123;

inline int read(){
	char c = getchar_unlocked();
	bool minus = 0;
	while (c < '0' || '9' < c){
		if(c == '-'){ minus = 1;}
		c = getchar_unlocked();
		if(c == '-'){ minus = 1;}
	}
	int res = 0;
	while ('0' <= c && c <= '9') {
		res = (res << 3) + (res << 1) + c - '0';
		c = getchar_unlocked();
	}
	if(minus){ res *= -1;}
	return res;
}

inline void print(bool flag){
	flag ? putchar_unlocked('1') : putchar_unlocked('0');
	putchar_unlocked('\n');
}

int n, m;
bool ans[N];
vector<int> v;
vector<pair<int, pair<int, int>>> q[N];

struct node{
	int max_high, max_low, add;
	node(int mv = -1, int mi = -INF, int a = -1){
		max_high = mv; max_low = mi; add = a;
	}
};

node t[N << 2];

void push(int v, int vl, int vr){
	if(t[v].add != -1){
		if(t[v].max_high > t[v].add){
			t[v].max_low = max(t[v].max_low, t[v].add);
		}
		if(vl != vr){
			if(t[v*2+1].max_high > t[v].add){
				t[v*2+1].add = max(t[v*2+1].add, t[v].add);
			}
			if(t[v*2+2].max_high > t[v].add){
				t[v*2+2].add = max(t[v*2+2].add, t[v].add);
			}
		}
		t[v].add = -1;
	}
}

node unite(node& a, node& b){
	if(a.max_high > b.max_high){
		return a;
	}else
	if(a.max_high < b.max_high){
		return b;
	}else{
		return a.max_low > b.max_low ? a : b;
	}
}

void modify_segment(int v, int vl, int vr, int l, int r, int val){
	push(v, vl, vr);
	if(vl > r || vr < l){ return;}
	if(l <= vl && vr <= r){
		t[v].add = val;
		push(v, vl, vr);
		return;
	}
	int vm = (vl + vr) >> 1;
	modify_segment(v*2+1, vl, vm, l, r, val);
	modify_segment(v*2+2, vm+1, vr, l, r, val);
	t[v] = unite(t[v*2+1], t[v*2+2]);
}

void modify_position(int v, int vl, int vr, int pos, int val){
	push(v, vl, vr);
	if(vl == vr){ t[v] = node(val, -INF, -1); return;}
	int vm = (vl + vr) >> 1;
	if(pos <= vm){
		modify_position(v*2+1, vl, vm, pos, val);
	}else{
		modify_position(v*2+2, vm+1, vr, pos, val);
	}
	t[v] = unite(t[v*2+1], t[v*2+2]);
}

pair<int, int> query(int v, int vl, int vr, int l, int r){
	push(v, vl, vr);
	if(vl > r || vr < l){ return {-1, -1};}
	if(l <= vl && vr <= r){
		return {t[v].max_high, t[v].max_low};
	}
	int vm = (vl + vr) >> 1;
	pair<int, int> q1 = query(v*2+1, vl, vm, l, r);
	pair<int, int> q2 = query(v*2+2, vm+1, vr, l, r);
	return q1.f + q1.s > q2.f + q2.s ? q1 : q2;
}

int main(){
	n = read(); m = read();
	v.resize(n);
	for(int i = 0; i < n; i++){
		v[i] = read();
	}
	for(int i = 0; i < m; i++){
		int l = read()-1, r = read()-1, k = read();
		q[r].pb({l, {i, k}});
	}
	for(int i = 0; i < n; i++){
		modify_segment(0, 0, n-1, 0, i, v[i]);
		for(auto j : q[i]){
			pair<int, int> res = query(0, 0, n-1, j.f, i);
			ans[j.s.f] = ((res.f + res.s) <= j.s.s);
		}
		modify_position(0, 0, n-1, i, v[i]);
	}
	for(int i = 0; i < m; i++){
		print(ans[i]);
	}
	return 0;
}
/* TIMUS: 292220YC*/

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