Submission #497506

#TimeUsernameProblemLanguageResultExecution timeMemory
497506vinnipuh01Hedgehog Daniyar and Algorithms (IZhO19_sortbooks)C++17
34 / 100
476 ms262148 KiB
#include <iostream>
#include <bits/stdc++.h>
#include <cmath>
#include <algorithm>
#include <vector>
#include <deque>
#include <set>
#include <stack>
#include <string>
#include <map>
#include <queue>
 
using namespace std;
 
const long long oo = 1000000000000000000;
 
long long sum, ans = 0, mx = 0, mn = 1000000000, num, pos;
 
 
/*
    ViHHiPuh
 
   (( `'-""``""-'` ))
     )-__-_.._-__-(
   / --- (o _ o) --- \
   \ .-* ( .0. ) *-. /
   _'-. ,_ '=' _, .-'_
  / `;#'#'# - #'#'#;` \
 \_)) -----'#'----- ((_/
      # --------- #
  '# ------- ------ #'
  /..-'# ------- #'-.\
  _\...-\'# -- #'/-.../_
  ((____)- '#' -(____))
 
 
    cout << fixed << setprecision(6) << x;
 
 
    freopen ( "sum.in", "r", stdin )
*/
 
struct Node {
	set <int> v;
	int ans;
	public :
		Node operator + ( Node a ) {
			Node c;
			c.ans = max( ans, a.ans );
			int l, r;
			l = r = 0;
			int mx = *v.rbegin();
			if ( *a.v.begin() < mx ) {
				auto it = a.v.lower_bound( mx );
				it = --it;
				c.ans = max( c.ans, *it + mx );
			}
			c.v = v;
			for ( auto i : a.v )
				c.v.insert( i ); 
			return c;
		}
} t[ 3000001 ];

struct Node1 {
	int ans, mx;
} an;
 
int n, m, a[ 1000001 ];
 
void build( int v, int tl, int tr ) {
	if ( tl == tr ) {
		t[ v ].v.insert( a[ tl ] );
		t[ v ].ans = 0;
		return;
	}
	int mid = ( tl + tr ) / 2;
	build( v + v, tl, mid );
	build( v + v + 1, mid + 1, tr );
	t[ v ] = t[ v + v ] + t[ v + v + 1 ];
}
 
void gett( int v, int tl, int tr, int l, int r ) {
	if ( tl > r || tr < l )
		return;
	if ( tl >= l && tr <= r ) {
		an.ans = max( an.ans, t[ v ].ans );
		if ( an.mx > *t[ v ].v.begin() ) {
			auto it = t[ v ].v.lower_bound( an.mx );
			it = --it;
			an.ans = max( an.ans, an.mx + *it );
		}
		an.mx = max( an.mx, *t[ v ].v.rbegin() );
		return;
	}
	int mid = ( tl + tr ) / 2;
	gett( v + v, tl, mid, l, r );
	gett( v + v + 1, mid + 1, tr, l, r );
}
 
main () {
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
	cin >> n >> m;
	for ( int i = 1; i <= n; i ++ ) {
		cin >> a[ i ];
	}
	int l, r, x;
	build( 1, 1, n );
	while ( m -- ) {
		cin >> l >> r >> x;
		num = 0;
		an.mx = 0;
		an.ans = 0;
		gett( 1, 1, n, l, r );
		cout << ( x >= an.ans ) << "\n";
	}
}

/*
9 1
10 6 7 10 1 3 7 3 7 
2 3 1

3 1 
7 1 9
1 3 8

*/

Compilation message (stderr)

sortbooks.cpp: In member function 'Node Node::operator+(Node)':
sortbooks.cpp:50:8: warning: variable 'l' set but not used [-Wunused-but-set-variable]
   50 |    int l, r;
      |        ^
sortbooks.cpp: At global scope:
sortbooks.cpp:101:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
  101 | main () {
      | ^~~~
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