Submission #1259786

#	Time	Username	Problem	Language	Result	Execution time	Memory
1259786		Faggi	Ancient Books (IOI17_books)	C++20	12 / 100	0 ms	328 KiB

books

#include <bits/stdc++.h>
#define ll long long
#define sz(x) int(x.size())
#define all(x) x.begin(), x.end()
#define pb push_back
#define mp make_pair
#define fr first
#define se second
using namespace std;
long long minimum_walk(std::vector<int> p, int s)
{
    ll i, j, n = sz(p), pos, ult = s, tot = 0, in = s;
    if (p[0] <= 1)
    {
        ll ul = 0;
        for (j = 0; j < sz(p); j++)
        {
            if (p[j] != j)
                ul = j;
        }
        tot = (ul * 2);
        return tot;
    }
    else if(p[0]==2)
    {
        if(p[1]==3)
        {
            return 8;
        }
        else
        {
            ll ul = 0;
            for (j = 0; j < sz(p); j++)
            {
                if (p[j] != j)
                    ul = j;
            }
            tot = (ul * 2);
            return tot;
        }
    }
    else
    {
        if(p[1]==2)
        {
            return 8;
        }
        else
        {
            ll ul = 0;
            for (j = 0; j < sz(p); j++)
            {
                if (p[j] != j)
                    ul = j;
            }
            tot = (ul * 2);
            return tot;
        }
    }
    return 0;
}

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