Submission #101961

#	Time	Username	Problem	Language	Result	Execution time	Memory
101961		tim25871014	Wiring (IOI17_wiring)	C++17	20 / 100	50 ms	2176 KiB

wiring

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

long long min_total_length(vector<int> r, vector<int> b){
    int n=r.size(),m=b.size();
    int minn=min(n,m);
    
    if(n<=200 && m<=200){
        
        int dp[210][210];
        dp[0][0]=abs(r[0]-b[0]);
        for(int i=0;i<n;i++)
            for(int j=0;j<m;j++){
                int minn=2147483647;
                if(i&&j) minn=min(minn,dp[i-1][j-1]);
                if(i) minn=min(minn,dp[i-1][j]);
                if(j) minn=min(minn,dp[i][j-1]);
                
                minn+=abs(r[i]-b[j]);
                
                if(i||j) dp[i][j]=minn;
            }
        return dp[n-1][m-1];
    }
    
    long long ans=0;
    for(int i=0;i<minn;i++)
        ans+=b[m-i-1]-r[i];
    
    for(int i=minn;i<n;i++)
        ans+=b[0]-r[i];
    
    for(int i=minn;i<m;i++)
        ans+=b[m-i-1]-r[n-1];
    
    return ans;
}

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