Submission #954852

#	Time	Username	Problem	Language	Result	Execution time	Memory
954852		Trisanu_Das	Mechanical Doll (IOI18_doll)	C++17	37 / 100	57 ms	11168 KiB

doll

#include <bits/stdc++.h>
#include "doll.h"
using namespace std;
 
vector<int> seq, X, Y, C;
int sz, dpth, layer;
 
void dfs(int u, int d, int v){
	if(d < dpth){
		dfs(u * 2, d + 1, v);
		dfs(u * 2 + 1, d + 1, v + (1 << (d - 1)));
		X[u - 1] = -u * 2; Y[u - 1] = X[u - 1] - 1;
	}else{
		X[u - 1] = (v >= sz - 1 ? -1 : seq[v]);
		if(v + (1 << (d - 1)) == (1 << dpth) - 1) Y[u - 1] = 0;
		else Y[u - 1] = (v + (1 << (d - 1)) >= sz - 1 ? -1 : seq[v + (1 << (d - 1))]);
	}
}
 
void create_circuit(int M, vector<int> A){
	seq.clear(), X.clear(), Y.clear(), C.clear();
	seq = A;
	sz = seq.size() + 1;
	dpth = log2(sz);
	if((1 << dpth) != sz) dpth++;
	layer = (1 << dpth) - 1;
	X.resize(layer), Y.resize(layer), C.resize(M + 1);
	dfs(1, 1, 0);
	for(int i = 0; i <= M; i++) C[i] = -1;
	answer(C, X, Y);
}

• Subtask 1: 0 / 2
• Subtask 2: 0 / 4
• Subtask 3: 0 / 10
• Subtask 4: 0 / 10
• Subtask 5: 9 / 18
• Subtask 6: 28 / 56