Submission #821288

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
821288	2023-08-11 08:42:57	vjudge1	Ancient Books (IOI17_books)	C++14	12 / 100	74 ms	284 KiB

books

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#include<bits/stdc++.h>
#include "books.h"
#define fi first
#define se second
#define ll long long
using namespace std ;
ll ans = 1e18 ;
int sz ;
vector<int> now ;
bool check()
{
    vector<int> gr = now ;
    sort(gr.begin(), gr.end()) ;
    return (now == gr) ;
}
void rec(int ind, int cnt, int sum, int with)
{
    if(with == -1 && check())
    {
        ans = min(ans, (ll)sum + ind) ;
        return ;
    }
    if(cnt == 16)
        return ;
    if(with != -1)
    {
        swap(now[ind], with) ;
        rec(ind, cnt + 1, sum, with) ;
        swap(now[ind], with) ;
    }
 
 
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• Subtask 1: 12 / 12
• Subtask 2: 0 / 10
• Subtask 3: 0 / 28
• Subtask 4: 0 / 20
• Subtask 5: 0 / 30