Submission #1051989

#	Time	Username	Problem	Language	Result	Execution time	Memory
1051989		Unforgettablepl	Wiring (IOI17_wiring)	C++17	10 / 100	168 ms	185212 KiB

wiring

#include "wiring.h"
#include <bits/stdc++.h>
using namespace std;

const int MAX_DIVERGENCE = 50;
const long long INF = 1e15;

long long min_total_length(vector<int> r, vector<int> b) {
	vector<pair<int,int>> arr;
	for(int&i:b)arr.emplace_back(i,0);
	for(int&i:r)arr.emplace_back(i,1);
	sort(arr.begin(), arr.end());
	int n = arr.size();
	arr.insert(arr.begin(),{false,-1});
	vector DP(n+1,vector(2,vector(MAX_DIVERGENCE+1,INF)));
	DP[0][0][0]=DP[0][1][0]=0;
	for(int i=1;i<=n;i++) {
		auto [idx,mycolour] = arr[i];
		int oppocolour = mycolour^1;
		DP[i][oppocolour][MAX_DIVERGENCE]=INF;
		for(int j=MAX_DIVERGENCE-1;j>=0;j--) {
			DP[i][oppocolour][j]=min(DP[i-1][oppocolour][j+1]+idx,DP[i][oppocolour][j+1]+idx);
		}
		DP[i][mycolour][0]=DP[i][oppocolour][0];
		for(int j=1;j<=MAX_DIVERGENCE;j++) {
			DP[i][mycolour][j]=min(DP[i-1][mycolour][j-1]-idx,DP[i][mycolour][j-1]-idx);
		}
	}
	return DP[n][0][0];
}

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