제출 #786808

#제출 시각아이디문제언어결과실행 시간메모리
786808pavement자동 인형 (IOI18_doll)C++17
6 / 100
49 ms12524 KiB
#include "doll.h"
#include <bits/stdc++.h>
using namespace std;

#define pb push_back

void create_circuit(int M, vector<int> A) {
	int N = A.size();
	vector<int> C(M + 1), X, Y;
	vector<vector<int> > vec(M + 1, vector<int>());
	for (int i = 0; i < N; i++) {
		vec[A[i]].pb(i + 1 < N ? A[i + 1] : 0);
	}
	C[0] = A[0];
	for (int i = 1; i <= M; i++) {
		if (vec[i].empty()) {
			C[i] = 0;
		} else if (vec[i].size() == 1) {
			C[i] = vec[i][0];
		} else {
			// create new switch
			C[i] = -((int)X.size() + 1);
			X.pb(vec[i][0]);
			Y.pb(vec[i][1]);
		}
	}
	answer(C, X, Y);
}
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