Submission #1286180

#	Time	Username	Problem	Language	Result	Execution time	Memory
1286180		muhammad-ahmad	Mechanical Doll (IOI18_doll)	C++20	0 / 100	1 ms	340 KiB

doll

#include <bits/stdc++.h>
#include "doll.h"
using namespace std;

vector<int> ord(int n){
	if (n == 1) return {1};
	vector<int> a = ord(n / 2), ans;
	for (auto i : a){
		ans.push_back(i);
		ans.push_back(i + n / 2);
	}
	return ans;
}

void create_circuit(int M, vector<int> A) {
	// A.push_back(0);
	int N = A.size()+1;
	int p = 1;
	while (p < N) p *= 2;
	vector<int> O = ord(p);
	
	vector<int> C(M + 1, -1), X(2 * p - 1), Y(2 * p - 1);
	deque<int> leaves = {-1};
	
	while (leaves.size() && -2 * leaves.front() <= 2 * p - 1){
		int x = -leaves.front();
		leaves.pop_front();
		X[x - 1] = -(2 * x);
		Y[x - 1] = -(2 * x + 1);
		leaves.push_back(-(2 * x));
		leaves.push_back(-(2 * x + 1));
	}
	for(auto &i:O){
		i += p-1;
		// cout<<i<<' ';
	}
	for (int i = 0; i < p; i++){
		X[O[i]-1]=-O[i];
		if(i<N-1) Y[O[i]-1]=A[i];
		else Y[O[i]-1]=-1;
	}
	X[2*p-2]=-(2*p-1);
	Y[2*p-2]=0;
	// for(int i=0;i<2*p-1;i++){
		// cout<<-i-1<<' '<<X[i]<<' '<<Y[i]<<endl;
	// }
	
	answer(C,X,Y);
	
}

// int main(){
	// create_circuit(4, {1, 2, 1, 3});
// }

• Subtask 1: 0 / 2
• Subtask 2: 0 / 4
• Subtask 3: 0 / 10
• Subtask 4: 0 / 10
• Subtask 5: 0 / 18
• Subtask 6: 0 / 56