Submission #425839

#	Time	Username	Problem	Language	Result	Execution time	Memory
425839		Hazem	Wiring (IOI17_wiring)	C++14	13 / 100	33 ms	6072 KiB

wiring

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

using namespace std;

#define LL long long

const LL INF  = 1e9;
const LL LINF = 1e18;
const int N = 2e3+10;

LL dp[N][N][2][2];
LL n,m;
vector<LL>R,B;

LL solve(int i,int j,int t1,int t2){
	
	if(i==n-1&&j==m-1&&t1&&t2)
		return 0;
	
	if(dp[i][j][t1][t2]!=-1)
		return dp[i][j][t1][t2];
	
	dp[i][j][t1][t2] = LINF;
	if(t1&&i<n-1)
		dp[i][j][t1][t2] = min(dp[i][j][t1][t2],solve(i+1,j,0,t2));
	if(t2&&j<m-1)
		dp[i][j][t1][t2] = min(dp[i][j][t1][t2],solve(i,j+1,t1,0));
		
	dp[i][j][t1][t2] = min(dp[i][j][t1][t2],solve(i,j,1,1)+abs(R[i]-B[j]));
	return dp[i][j][t1][t2];
}

long long min_total_length(std::vector<int> r, std::vector<int> b) {

	n = r.size(),m = b.size();
	for(auto x:r)
		R.push_back(x);
	for(auto x:b)
		B.push_back(x);

	LL ret = 0;
	for(LL i=0;i<n-1;i++)
		ret += (R[i+1]-R[i])*(i+1);
	
	for(LL i=m-1;i>=1;i--)
		ret += (B[i]-B[i-1])*(m-i);
	
	ret += (B[0]-R[n-1])*min(n,m);
	ret += (B[0]-R[n-1])*(max(n,m)-min(n,m));
	// if(n>m)
	// 	for(int i=n-1;i>=m;i--)
	// 		ret += B[0]-R[i];
	// if(m>n)
	// 	for(int i=0;i<m-n;i++)
	// 		ret += B[i]-R[n-1];
	
	return ret;
}

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