Submission #1072483

#	Time	Username	Problem	Language	Result	Execution time	Memory
1072483		pawned	Mechanical Doll (IOI18_doll)	C++17	0 / 100	14 ms	10776 KiB

doll

#pragma GCC optimize("O1,O2,O3,Ofast,unroll-loops")

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

#define fi first
#define se second
#define pb push_back
typedef long long ll;
typedef pair<int, int> ii;
typedef vector<int> vi;

#include "doll.h"

void create_circuit(int M, vi A) {
	int N = A.size();
/*	cout<<"A: ";
	for (int i = 0; i < N; i++) {
		cout<<A[i]<<" ";
	}
	cout<<endl;*/
	vi allr[M + 1];
	allr[0].pb(A[0]);
	for (int i = 0; i < M - 1; i++) {
		allr[A[i]].pb(A[i + 1]);
	}
/*	cout<<"allr: "<<endl;
	for (int i = 0; i < M; i++) {
		cout<<i<<": ";
		for (int x : allr[i])
			cout<<x<<" ";
		cout<<endl;
	}*/
	vi ans(M + 1, 0);
	for (int i = 0; i <= M; i++) {
		if (allr[i].size() != 0)
			ans[i] = allr[i][0];
	}
	// create binary tree
	answer(ans, {}, {});
}

Compilation message (stderr)

doll.cpp: In function 'void create_circuit(int, vi)':
doll.cpp:16:6: warning: unused variable 'N' [-Wunused-variable]
   16 |  int N = A.size();
      |      ^

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