제출 #882954

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
882954		vjudge1	Palembang Bridges (APIO15_bridge)	C++17	8 / 100	520 ms	262144 KiB

bridge

#pragma optimize("Bismillahirrahmanirrahim")
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//█▄█─█──█──█▄█─█■█
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//Allahuekber
//ahmet23 orz...
//Sani buyuk Osman Pasa Plevneden cikmam diyor.
//FatihSultanMehmedHan
//YavuzSultanSelimHan
//AbdulhamidHan
#define author tolbi
#include <bits/stdc++.h>
using namespace std;
template<typename X, typename Y> istream& operator>>(istream& in, pair<X,Y> &pr) {return in>>pr.first>>pr.second;}
template<typename X, typename Y> ostream& operator<<(ostream& os, pair<X,Y> pr) {return os<<pr.first<<" "<<pr.second;}
template<typename X> istream& operator>>(istream& in, vector<X> &arr) {for(auto &it : arr) in>>it; return in;}
template<typename X> ostream& operator<<(ostream& os, vector<X> arr) {for(auto &it : arr) os<<it<<" "; return os;}
template<typename X, size_t Y> istream& operator>>(istream& in, array<X,Y> &arr) {for(auto &it : arr) in>>it; return in;}
template<typename X, size_t Y> ostream& operator<<(ostream& os, array<X,Y> arr) {for(auto &it : arr) os<<it<<" "; return os;}
#define int long long
#define endl '\n'
#define vint(x) vector<int> x
#define deci(x) int x;cin>>x;
#define decstr(x) string x;cin>>x;
#define cinarr(x) for (auto &it : x) cin>>it;
#define coutarr(x) for (auto &it : x) cout<<it<<" ";cout<<endl;
#define sortarr(x) sort(x.begin(),x.end())
#define sortrarr(x) sort(x.rbegin(),x.rend())
#define det(x) cout<<"NO\0YES"+x*3<<endl;
#define INF LONG_LONG_MAX
#define rev(x) reverse(x.begin(),x.end());
#define ios ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define tol(bi) (1LL<<((int)(bi)))
const int MOD = 1e9+7;
mt19937 ayahya(chrono::high_resolution_clock().now().time_since_epoch().count());
struct SegTree{
	struct Node{
		int val;
		int cnt;
		Node* lnode;
		Node* rnode;
		Node():cnt(0),val(0),lnode(nullptr),rnode(nullptr){}
		Node* crl(){
			if (lnode==nullptr) lnode = new Node;
			return lnode;
		}
		Node* crr(){
			if (rnode==nullptr) rnode = new Node;
			return rnode;
		}
	};
	Node* root;
	SegTree():root(new Node){}
	void push(int x){
		int l = 0, r = MOD;
		Node* node = root;
		while (l<r){
			int mid = l+(r-l)/2;
			node->val+=x;
			node->cnt++;
			if (l==r) break;
			if (mid>=x){
				r=mid;
				node=node->crl();
			}
			else {
				l=mid+1;
				node=node->crr();
			}
		}
		node->val+=x;
		node->cnt++;
	}
	void erase(int x){
		int l = 0, r = MOD;
		Node* node = root;
		while (l<r){
			int mid = l+(r-l)/2;
			node->val-=x;
			node->cnt--;
			if (l==r) break;
			if (mid>=x){
				r=mid;
				node=node->crl();
			}
			else {
				l=mid+1;
				node=node->crr();
			}
		}
		node->val-=x;
		node->cnt--;
	}
	int median(){
		int l = 0, r = MOD;
		Node* node = root;
		int k = node->cnt/2;
		while (l<r){
			int mid = l+(r-l)/2;
			int left = 0;
			if (node->lnode!=nullptr) left = node->lnode->cnt;
			if (left>=k){
				node=node->lnode;
				r=mid;
			}
			else {
				k-=left;
				node=node->rnode;
				l=mid+1;
			}
		}
		return l;
	}
	pair<int,int> query(int tarl, int tarr, int l = 0, int r = -1, Node* node = nullptr){
		if (r==-1){
			r=MOD, node=root;
		}
		if (node==nullptr) return {0,0};
		if (l>=tarl && r<=tarr) return {node->val,node->cnt};
		if (l>tarr || r<tarl) return {0,0};
		int mid = l+(r-l)/2;
		pair<int,int> lnode = query(tarl, tarr, l, mid, node->lnode);
		pair<int,int> rnode = query(tarl, tarr, mid+1, r, node->rnode);
		return {lnode.first+rnode.first,lnode.second+rnode.second};
	}
};
struct Solution{
	SegTree segtree;
	SegTree ls;
	SegTree rs;
	void push(int l, int r){
		ls.push(l);
		rs.push(r);
		segtree.push(l);
		segtree.push(r);
	}
	void erase(int l, int r){
		ls.erase(l);
		rs.erase(r);
		segtree.erase(l);
		segtree.erase(r);
	}
	int query(){
		int x = segtree.median();
		pair<int,int> left = rs.query(0,x);
		pair<int,int> right = ls.query(x,MOD);
		return (left.second*x-left.first+right.first-right.second*x)*2;
	}
};
int32_t main(){
	ios;
	int t=1;
	int tno = 0;
	if (!t) cin>>t;
	while (t-(tno++)){
		deci(k);deci(n);
		vector<pair<int,int>> segment;
		int ans = 0;
		for (int i = 0; i < n; i++){
			char a,c;
			int b,d;
			cin>>a>>b>>c>>d;
			ans+=abs(b-d);
			if (a!=c){
				ans++;
				segment.push_back({min(b,d),max(b,d)});
			}
		}
		n=segment.size();
		vector<int> arr(n+1,0);
		vector<int> barr(n+1,0);
		Solution soln;
		Solution soln2;
		for (int i = 1; i <= n; i++){
			soln.push(segment[i-1].first,segment[i-1].second);
			arr[i]=soln.query();
		}
		for (int i = 1; i <= n; i++){
			barr[n-i+1]=soln.query();
			soln.erase(segment[i-1].first,segment[i-1].second);
		}
		if (k==1) ans+=arr[n];
		else {
			int crr = arr[0]+barr[n];
			for (int i = 0; i <= n; i++){
				crr=min(arr[i]+barr[n-i],crr);
			}
			ans+=crr;
		}
		cout<<ans<<endl;
	}
}

컴파일 시 표준 에러 (stderr) 메시지

bridge.cpp:1: warning: ignoring '#pragma optimize ' [-Wunknown-pragmas]
    1 | #pragma optimize("Bismillahirrahmanirrahim")
      | 
bridge.cpp: In constructor 'SegTree::Node::Node()':
bridge.cpp:39:7: warning: 'SegTree::Node::cnt' will be initialized after [-Wreorder]
   39 |   int cnt;
      |       ^~~
bridge.cpp:38:7: warning:   'long long int SegTree::Node::val' [-Wreorder]
   38 |   int val;
      |       ^~~
bridge.cpp:42:3: warning:   when initialized here [-Wreorder]
   42 |   Node():cnt(0),val(0),lnode(nullptr),rnode(nullptr){}
      |   ^~~~

• Subtask 1: 8 / 8
• Subtask 2: 0 / 14
• Subtask 3: 0 / 9
• Subtask 4: 0 / 32
• Subtask 5: 0 / 37