Submission #99092

#	Time	Username	Problem	Language	Result	Execution time	Memory
99092		figter001	Wiring (IOI17_wiring)	C++14	0 / 100	3 ms	256 KiB

wiring

#include "wiring.h"
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef long double ld;
typedef unsigned long long ull;
const int nax = 2e5 + 50;

ll dp[nax];

long long min_total_length(vector<int> r, vector<int> b) {
	vector<pair<ll,int>> a;
	for(int i : r)
		a.push_back({i,0});
	for(int i : b)
		a.push_back({i,1});
	sort(a.begin(),a.end());
	int n = a.size();
	for(int i=0;i<=n;i++)
		dp[i] = 1e18;
	dp[0] = 0;
	int lr = -1,lb = -1;
	int id1 = -1,id2 = -1;
	for(int i=1;i<=n;i++){
		pair<int,int> cur = a[i-1];
		ll at = cur.first;
		if(cur.first == 0){
			if(lb != -1)
				dp[i] = min(dp[i],dp[id2-1] + at - lb);
			lr = at;
			id1 = i;
		}else{
			if(lr != -1)
				dp[i] = min(dp[i],dp[id1-1] + at - lr);
			lb = at;
			id2 = i;
		}
	}
	return dp[n];
}

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