Submission #73621

#	Time	Username	Problem	Language	Result	Execution time	Memory
73621		MKopchev	고대 책들 (IOI17_books)	C++14	0 / 100	3 ms	560 KiB

books

#include<bits/stdc++.h>
using namespace std;
const int nmax=1e6+42;
int where[nmax];
bool been[nmax];
long long minimum_walk(vector<int> p, int s)
{
    int n=p.size();
    for(int i=0;i<n;i++)
        where[i]=p[i];
    long long ans=0;
    int last=0;
    for(int i=0;i<n;i++)
        if(been[i]==0)
        {
            ans=ans+i-last;
            last=i;
            int now=i;
            while(been[now]==0)
            {
                ans=ans+abs(now-where[now]);
                been[now]=1;
                now=where[now];
            }
        }
    return ans+last;
}
/*
int main()
{
cout<<minimum_walk({0, 2, 3, 1}, 0)<<endl;
return 0;
}
*/

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