Submission #293709

#	Time	Username	Problem	Language	Result	Execution time	Memory
293709		egekabas	Rectangles (IOI19_rect)	C++14	10 / 100	2 ms	416 KiB

rect

#include "rect.h"
#include <bits/stdc++.h>
#define all(x) (x).begin(), (x).end()
#define ff first
#define ss second
#define pb push_back
#define mp make_pair
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
typedef pair<ll, ll> pll;
typedef pair<ull, ull> pull;
typedef pair<int, int> pii;
typedef pair<ld, ld> pld;
int n, m;
ll solven3(vector<std::vector<int> > a){
	vector<int> bad;
	for(int i = 0; i < m; ++i)
		if(a[1][i] >= a[0][i] || a[1][i] >= a[2][i]){
			bad.pb(i);
		}
	vector<pii> vec;
	ll ans = 0;
	for(int i = m-1; i >= 0; --i){
		while(vec.size()){
			int idx1 = upper_bound(all(bad), i)-bad.begin();
			int idx2 = int(lower_bound(all(bad), vec.back().ss)-bad.begin())-1;
			if(idx1 > idx2 && vec.back().ss != i+1)
				++ans;
			if(vec.back().ff > a[1][i])
				break;
			vec.pop_back();
		}
		vec.pb({a[1][i], i});
	}
	return ans;
}
long long count_rectangles(vector<std::vector<int> > a) {
	n = a.size();
	m = a[0].size();
	if(n == 3)
		return solven3(a);
	else
		return 0;
}

• Subtask 1: 0 / 8
• Subtask 2: 0 / 7
• Subtask 3: 0 / 12
• Subtask 4: 0 / 22
• Subtask 5: 10 / 10
• Subtask 6: 0 / 13
• Subtask 7: 0 / 28