Submission #283283

#	Time	Username	Problem	Language	Result	Execution time	Memory
283283		davi_bart	Wiring (IOI17_wiring)	C++14	0 / 100	1 ms	512 KiB

wiring

#include <bits/stdc++.h>
#include <wiring.h>
using namespace std;
#define ll long long
//#define int ll
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
/*vector<int> x, y;
map<int,bool> vis[100010];
map<int,ll> memo[100010];
ll sol(int a,int b){
  if(a==x.size() && b==y.size())return 0;
  if(vis[a][b])return memo[a][b];
  vis[a][b]=1;
  if(a==x.size()){
    ll t=0;
    for(int i=b;i<y.size();i++)t+=abs(y[i]-x.back());
    return memo[a][b]=t;
  }
  if(b==y.size()){
    ll t=0;
    for(int i=a;i<x.size();i++)t+=abs(x[i]-y.back());
    return memo[a][b]=t;
  }
  ll best=1e16;
  best=min(best,sol(a+1,b+1)+abs(x[a]-y[b]));
  if(a>0 && x[a]>y[b])best=min(best,sol(a,b+1)+abs(x[a-1]-y[b]));
  if(b>0 && y[b]>x[a])best=min(best,sol(a+1,b)+abs(x[a]-y[b-1]));
  return memo[a][b]=best;
}*/
vector<pair<int,int> >x;
long long min_total_length(std::vector<int> r, std::vector<int> b) {
	/*x=r;y=b;
  return sol(0,0);*/
  for(int a:r)x.push_back({a,1});
  for(int a:b)x.push_back({a,0});
  sort(x.begin(),x.end());
  ll tot=0,aa=0,bb=0;
  for(auto k:x){
    if(k.second){
      aa=0;
      bb++;
    }else{
      bb=0;
      aa++;
    }
    tot+=aa*(aa+1)/2+bb*(bb+1)/2;
  }
  return tot/2;
}

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