Submission #420729

#	Time	Username	Problem	Language	Result	Execution time	Memory
420729		EJOI2019Andrew	Ancient Books (IOI17_books)	C++14	22 / 100	2053 ms	58532 KiB

books

#include "books.h"
#include<bits/stdc++.h>
using namespace std;
long long minimum_walk(std::vector<int> p, int s) {
	 map<int,int>v;
	  int n=p.size();
	  long long int a(0);
	  int c(0);
	  for(int i=0;i<n;++i)
      {
          a+=abs(i-p[i]);
          for(int j=min(i,p[i]);j<max(i,p[i]);++j)
            v[j]=1;
      }
      for(int i=0;i<n-1;++i)
      {
          if(!v[i])
            ++c;
          else
          {
              a+=2*c;
              c=0;
          }
      }
        
	return a;
}

• Subtask 1: 12 / 12
• Subtask 2: 10 / 10
• Subtask 3: 0 / 28
• Subtask 4: 0 / 20
• Subtask 5: 0 / 30