제출 #1035792

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1035792		Alihan_8	전선 연결 (IOI17_wiring)	C++17	0 / 100	1090 ms	5924 KiB

wiring

#include "wiring.h"

#include <bits/stdc++.h>

using namespace std;

#define all(x) x.begin(), x.end()
#define ar array
#define pb push_back
#define ln '\n'
//#define int long long

using i64 = long long;

template <class F, class _S>
bool chmin(F &u, const _S &v){
    bool flag = false;
    if ( u > v ){
        u = v; flag |= true;
    }
    return flag;
}

template <class F, class _S>
bool chmax(F &u, const _S &v){
    bool flag = false;
    if ( u < v ){
        u = v; flag |= true;
    }
    return flag;
}

const i64 inf = 1e15;

long long min_total_length(std::vector<int> r, std::vector<int> b) {
	int n = r.size(), m = b.size();
	
	vector <ar<int,2>> a;
	
	for ( int i = 0; i < n; i++ ){
		a.pb({r[i], 0});
	}
	
	for ( int i = 0; i < m; i++ ){
		a.pb({b[i], 1});
	}
	
	sort(all(a));
	
	vector <vector<int>> rng;
	
	int lst = -1;
	
	for ( auto &[x, t]: a ){
		if ( t == lst ){
			rng.back().pb(x);
		} else{
			rng.pb({x});
			
			lst = t;
		}
	}
	
	int k = rng.size();
	
	auto sz = [&](int j){ return (int)rng[j].size(); }; 
	
	vector <i64> dp(sz(0) + 1, inf);
	
	dp[0] = 0;
	
	for ( int i = 1; i < k; i++ ){
		vector <i64> nxt(sz(i) + 1, inf);
		
		i64 cnt = 0;
		
		auto &tmp = rng[i];
		
		int lst = 0;
		
		for ( int k = 0; k <= sz(i); k++ ){
			i64 sf = 0, _lst = 0;
			 
			for ( int j = sz(i - 1); j >= 0; j-- ){
				int q = sz(i - 1) - j;
				
				chmin(nxt[k], cnt + dp[j] + max(q, k) * 1LL * (tmp[0] - rng[i - 1].back()) + sf);
				
				if ( j > 0 ){
					sf += q * (_lst - rng[i - 1][j - 1]);
					
					_lst = rng[i - 1][j - 1];
				}
			}
			
			if ( k < sz(i) ){
				cnt += (tmp[k] - lst) * 1LL * k;
				
				lst = tmp[k];
			}
		}
		
		swap(dp, nxt);
	}
	
	return dp.back();
}

• Subtask 1: 0 / 7
• Subtask 2: 0 / 13
• Subtask 3: 0 / 10
• Subtask 4: 0 / 25
• Subtask 5: 0 / 45