Submission #1060925

#	Time	Username	Problem	Language	Result	Execution time	Memory
1060925		vjudge1	Wiring (IOI17_wiring)	C++17	7 / 100	18 ms	3904 KiB

wiring

#include<bits/stdc++.h>

using namespace std;

typedef long long ll;

ll min_total_length(vector<int> r, vector<int> b)
{
  ll ans = 0;
  int n = r.size(), m = b.size();
  if(n <= 2000 && m <= 2000)
    {
      ll dp[n +1][m + 1], inf = 1e18;
      
      for(int i = 0; i <= n; i ++)
	for(int j = 0; j <= m; j ++)
	  dp[i][j] = inf;
      
      dp[0][0] = 0;
      for(int i = 0; i < n; i ++)
	for(int j = 0; j < m; j ++)
	  dp[i + 1][j + 1] = abs(r[i] - b[j]) + min(min(dp[i][j + 1], dp[i + 1][j]), dp[i][j]);	
      /*
	for(int i = 0; i <= n; i ++)
	for(int j = 0; j <= m; j ++)
	cout << "dp[" << i << "][" << j << "] = " << dp[i][j] << endl;
      */
      ans = dp[n][m];
    }
  else
    {
      for(int i : r) ans -= i;
      for(int i : b) ans += i;
      int d = n - m;
      if(d > 0)
	ans -= 1ll * d * r.back();
      else
	ans -= 1ll * d * b.front();
    }
  return ans;
}
/*
int main()
{
  int n, m;
  cin >> n >> m;
  vector<int> a(n), b(m);
  for(int i = 0; i < n; i ++) cin >> a[i];
  for(int i = 0; i < m ; i ++) cin >> b[i];

  min_total_length(a, b);
  return 0;
}
*/

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