제출 #403101

#제출 시각아이디문제언어결과실행 시간메모리
403101SavicSDetecting Molecules (IOI16_molecules)C++14
69 / 100
50 ms3772 KiB
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include <bits/stdc++.h>

#define fi first
#define se second
#define pb push_back
#define sz(a) (int)a.size()
#define all(a) a.begin(), a.end()
#define rall(a) a.rbegin(), a.rend()
#define ff(i,a,b) for(int i=a;i<=b;i++)
#define fb(i,b,a) for(int i=b;i>=a;i--)

using namespace std;
using namespace __gnu_pbds;
typedef long long ll;
typedef pair<int,int> pii;
const int maxn = 200005;
const int inf = 1e9 + 5;

template<typename T>
using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;

// os.order_of_key(k) the number of elements in the os less than k
// *os.find_by_order(k)  print the k-th smallest number in os(0-based)

int n;
pii niz[maxn];

vector<int> find_subset(int l, int r, vector<int> w){
	n = sz(w);
	ff(i,1,n)niz[i] = {w[i - 1], i};
	sort(niz + 1, niz + n + 1);

	vector<int> res;
	
	int j = 0;
	int zbir = 0;
	ff(i,1,n){
		while(j + 1 <= n && zbir < l){
			j += 1;
			zbir += niz[j].fi;
		}
		
		if(zbir >= l && zbir <= r){
			
			ff(o,i,j)res.pb(niz[o].se - 1);
			return res;
						
		}
		
		zbir -= niz[i].fi;
		
	}
	
	return res;
	
}

//int main()
//{
//    ios::sync_with_stdio(false);
//    cout.tie(nullptr);
//    cin.tie(nullptr);
//    int l, r, n;
//	cin >> l >> r >> n;
//	vector<int> a(n);
//	ff(i,0,n - 1)cin >> a[i];
//	
//	auto x = find_subset(l, r, a);
//	for(auto c : x)cout << c << " ";
//	cout << endl;	
//	
//    return 0;
//}
/**




// probati bojenje sahovski ili slicno

**/

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