Submission #566255

#	Time	Username	Problem	Language	Result	Execution time	Memory
566255		sofapuden	Ancient Books (IOI17_books)	C++14	0 / 100	1 ms	304 KiB

books

#include "books.h"
#include<bits/stdc++.h>

using namespace std;

typedef long long ll;

ll minimum_walk(vector<int> p, int s) {
	ll su = 0;
	int mx = 0;
	int n = p.size();
	vector<int> vis(n,0);
	ll ans = 0;
	for(int i = 0; i < n; ++i){
		ans+=abs(i-p[i]);
		if(!vis[i]){
			ans+=2;
			while(!vis[i]){
				vis[i] = 1;
				i = p[i];
			}
		}
	}
	return ans-2;
}

Compilation message (stderr)

books.cpp: In function 'll minimum_walk(std::vector<int>, int)':
books.cpp:9:5: warning: unused variable 'su' [-Wunused-variable]
    9 |  ll su = 0;
      |     ^~
books.cpp:10:6: warning: unused variable 'mx' [-Wunused-variable]
   10 |  int mx = 0;
      |      ^~

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