oj.uz

Submission #131128

# Submission time Handle Problem Language Result Execution time Memory
131128 2019-07-16T15:37:03 Z claudy Ancient Books (IOI17_books) C++14
0 / 100
 2000 ms 376 KB 
# include "books.h"
# pragma GCC optimize("Ofast")
# pragma GCC optimization ("unroll-loops")
# include "bits/stdc++.h"
/*
# include <ext/pb_ds/tree_policy.hpp>
# include <ext/pb_ds/assoc_container.hpp>
# include <ext/rope>
*/
std::pair<int,int> DR[] = {{-1,0},{0,1},{1,0},{0,-1},{-1,1},{-1,-1},{1,1},{1,-1}};
# define ll long long
# define clock (clock() * 1000.0 / CLOCKS_PER_SEC)
# define rc(s) return cout << s,0
# define rcg(s) cout << s;exit(0)
# define _ ios_base::sync_with_stdio(false);cin.tie(0);cerr.tie(0);cout.tie(0);
# define db(x) cerr << #x << " = " << x << '\n'
# define pb push_back
# define mp make_pair
# define all(s) s.begin(),s.end()
# define sz(x) (int)((x).size())
//# define int ll
using namespace std;
 
/*
using namespace __gnu_pbds;
using namespace __gnu_cxx;
template <class T> using Tree = tree<T, null_type, less<T>, rb_tree_tag,tree_order_statistics_node_update>;
Tree<int>tr;
*/

int aux,x,pos,curr;

ll minimum_walk(vector<int>p, int s)
{
	int n = sz(p);
	vector<int>vec;
	for(int i = 0;i < n;i++)
	{
		vec.pb(i);
	}
	int ans = 1e9;
	vector<int>aux;
	do
	{
		aux = p;
		x = 0;
		pos = 0;
		curr = -1;
		for(auto it : vec)
		{
			int idx = -1;
			for(int i = 0;i < sz(aux);i++)
			{
				if(aux[i] == it) idx = i;
			}
			if(idx != -1)
			{
				x += abs(idx - pos);
				pos = idx;
				aux[pos] = curr;
				curr = it;
			}
			x += abs(pos - it);
			curr = aux[it];
			aux[it] = it;
			pos = it;
		}
		ans = min(ans,x + pos);
	}while(next_permutation(vec.begin(),vec.end()));
	return ans;
}

Compilation message

books.cpp:3:0: warning: ignoring #pragma GCC optimization [-Wunknown-pragmas]
 # pragma GCC optimization ("unroll-loops")

Subtask #1
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Incorrect 2 ms 256 KB 3rd lines differ - on the 1st token, expected: '4', found: '6'
6 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Incorrect 2 ms 256 KB 3rd lines differ - on the 1st token, expected: '4', found: '6'
6 Halted 0 ms 0 KB -

Subtask #3
0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Incorrect 2 ms 256 KB 3rd lines differ - on the 1st token, expected: '4', found: '6'
6 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2049 ms 376 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Incorrect 2 ms 256 KB 3rd lines differ - on the 1st token, expected: '4', found: '6'
6 Halted 0 ms 0 KB -