Submission #1068405

#TimeUsernameProblemLanguageResultExecution timeMemory
1068405jamjanekChoreography (IOI23_choreography)C++17
12 / 100
1072 ms7192 KiB
#include "choreography.h"
#include <bits/stdc++.h>
using namespace std;

vector<int> pos;
vector<int> perm;
vector<int>pom;
int shift;
int n,i;
void init(int N, std::vector<int> P) {
    n=N;
    pos.resize(n);
    pom.resize(n);
    for(int i=0;i<N;i++)pos[P[i]] = i;
    perm = P;
    return;
} 

void move_right(int k) {
	for(int i=0;i<n;i++)
		pom[(i+k)%n]=perm[i];
	perm = pom;
	for(int i=0;i<n;i++)
		pos[i] = (pos[i]+k)%n;
    return;
}

void move_left(int k) {
	for(int i=0;i<n;i++)
		pom[(i-k+n)%n]=perm[i];
	perm = pom;
	for(int i=0;i<n;i++)
		pos[i] = (pos[i]-k+n)%n;
    return;
}

void swap_places() {
	for(i=0;i<n;i++)
		if(i%2==0)swap(perm[i], perm[i+1]);
	for(i=0;i<n;i++)
		pos[i]^=1;
    return;
}

void move_around() {
	for(i=0;i<n;i++)
		pom[perm[perm[i]]] = perm[i];
	perm = pom;
	for(i=0;i<n;i++)
		pos[perm[i]]=i;
    return;
}

int get_position(int D){
//	for(i=0;i<n;i++)
//		printf("%d ", perm[i]);
//	exit(0);
	return pos[D];
//    return 0;
}
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