Submission #1020900

#	Time	Username	Problem	Language	Result	Execution time	Memory
1020900		fv3	Mechanical Doll (IOI18_doll)	C++14	0 / 100	21 ms	4696 KiB

doll

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

using namespace std;

void create_circuit(int M, vector<int> A) 
{
	int N = 0;
	for (auto e : A)
		N = max(N, e);

	vector<int> C(N + 1);
	vector<int> X(N), Y(N, -1);

	C[0] = A[0];
	int last = A[0];
	for (int i = 1; i < A.size(); i++)
	{
		C[last] = -last;

		if (Y[last - 1] == -1)
		{
			Y[last-1] = A[i];
			X[last-1] = -last;
		}
		else
		{
			X[last-1] = Y[last-1];
			Y[last-1] = A[i];
		}

		last = A[i];
	}

	C[last] = -last;
	if (Y[last - 1] == -1)
	{
		Y[last-1] = 0;
		X[last-1] = -last;
	}
	else
	{
		X[last-1] = Y[last-1];
		Y[last-1] = 0;
	}

	Y[A.back() - 1] = 0;
	answer(C, X, Y);
}

//#include "DollGrader.cpp"

Compilation message (stderr)

doll.cpp: In function 'void create_circuit(int, std::vector<int>)':
doll.cpp:17:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |  for (int i = 1; i < A.size(); i++)
      |                  ~~^~~~~~~~~~

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