Submission #1055634

#	Time	Username	Problem	Language	Result	Execution time	Memory
1055634		aaaaaarroz	Ancient Books (IOI17_books)	C++17	50 / 100	81 ms	18916 KiB

books

    #include "books.h"
    #include <bits/stdc++.h>
    using namespace std;
     
    long long minimum_walk(vector<int> p, int s) {
    	int n = p.size();
    	vector mover(n,0);
    	int last_voilater = 0;
    	long long ans = 0;
    	for(int i=0;i<n;i++) {
    		if(p[i]==i)continue;
    		ans+=abs(p[i]-i);
    		last_voilater=i;
    		mover[min(p[i],i)]++;
    		mover[max(p[i],i)]--;
    	}
    	for(int i=1;i<n;i++)mover[i]+=mover[i-1];
    	for(int i=0;i<last_voilater;i++) {
    		if(mover[i]==0)ans+=2;
    	}
    	return ans;
    }

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