Submission #802979

#	Time	Username	Problem	Language	Result	Execution time	Memory
802979		IvanJ	Mechanical Doll (IOI18_doll)	C++17	37 / 100	134 ms	13340 KiB

doll

#include "doll.h"
#include<bits/stdc++.h>

#define pb push_back
#define x first
#define y second
#define all(a) (a).begin(), (a).end()

using namespace std;

typedef long long ll;
typedef pair<int, int> ii;

const int inf = 1e9;
int P = 0, SZ = 0;
vector<int> state;

int gen_switch(int N, int &S, vector<int> &X, vector<int> &Y) {
	if(N == 1) {SZ++;return inf;}	
	int L = gen_switch((N + 1) / 2, S, X, Y);
	int R = gen_switch((N + 1) / 2, S, X, Y);
	int root = --S;
	state.pb(0);
	X.pb(L), Y.pb(R);
	return root;
}

int simulate(int x, vector<int> &A, vector<int> &X, vector<int> &Y) {
	if(x == inf) return A[P++];
	int pos = -x - 1;
	if(state[pos] == 0) X[pos] = simulate(X[pos], A, X, Y);
	if(state[pos] == 1) Y[pos] = simulate(Y[pos], A, X, Y);
	state[pos] ^= 1;
	return x;
}

void create_circuit(int M, vector<int> A) {
	A.pb(0);
	int S = 0, N = (int)A.size();
	vector<int> C, X, Y;
	int root = gen_switch(N, S, X, Y);
	vector<int> v;
	for(int i = N;i < SZ;i++) v.pb(root);
	for(int i : A) v.pb(i);
	A = v;
	N = (int)A.size();
	for(int i = 0;i < N;i++) simulate(root, A, X, Y);
	C = vector<int>(M + 1, root);
	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