Submission #1208057

#	Time	Username	Problem	Language	Result	Execution time	Memory
1208057		jasonic	Ancient Books (IOI17_books)	C++20	0 / 100	1 ms	328 KiB

books

#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define fastIO cin.tie(0); ios::sync_with_stdio(false)

ll minimum_walk(vector<int> p, int s) {
    ll n = size(p);
    vector<bool> vis(n, false);
    assert(s == 0);
    ll ans = 0;
    ll last = 0;

    for(int i = 0; i < n; i++) {
        if(p[i] != i && !vis[i]) {
            ans += i - last;
            ll prev = i;
            ll next = p[i];
            while(next != i) {
                vis[next] = true;
                ans += abs(next - prev);
                prev = p[prev];
                next = p[next];
            }
            ans += abs(next - prev);
            last = i;
        }
        vis[i] = true;
    }
    ans += last;

    return ans;
}

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