Submission #1068753

#	Time	Username	Problem	Language	Result	Execution time	Memory
1068753		jamjanek	Choreography (IOI23_choreography)	C++17	45 / 100	61 ms	9928 KiB

choreography

#include "choreography.h"
#include <bits/stdc++.h>
using namespace std;
 
vector<int> pos[2];
vector<int> perm;
vector<int>pom;
int shift;
int n,i;
void init(int N, std::vector<int> P) {
	n=N;
	pos[0].resize(n);
	pos[1].resize(n);
	pom.resize(n);
	for(int i=0;i<N;i++)pos[0][P[i]] = i;
	perm = P;
 
	for(i=0;i<n;i++)
		pom[perm[perm[i]]] = perm[i];
	perm = pom;
	for(i=0;i<n;i++)
		pos[1][perm[i]]=i;
	i=0;
	return;
} 
int shift1, shift2;
void move_right(int k) {
	shift1 = (shift1+k)%n;
	return;
}
 
void move_left(int k) {
	shift1 = (shift1-k+n)%n;
	return;
}
 
void swap_places() {
	return;
}
 
void move_around() {
	i^=1;
	swap(shift1,shift2);
	shift1 = (n-shift1)%n;
	shift2 = (n-shift2)%n;
	return;
}
 
int get_position(int D){
	return (pos[i][(D+shift2)%n]+shift1)%n;
//    return 0;
}

• Subtask 1: 7 / 7
• Subtask 2: 0 / 12
• Subtask 3: 10 / 10
• Subtask 4: 0 / 14
• Subtask 5: 28 / 28
• Subtask 6: 0 / 29