Submission #1032730

#	Time	Username	Problem	Language	Result	Execution time	Memory
1032730		parsadox2	Mechanical Doll (IOI18_doll)	C++17	53 / 100	115 ms	19352 KiB

doll

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

using namespace std;

const int N = 2e5 + 10;
int n , m;
vector <int> C , X , Y , adj[N];

int Solve(vector <int> vec)
{
	if(vec.size() == 1)
		return vec[0];
	X.push_back(0);
	Y.push_back(0);
	int now = X.size();
	vector <int> v[2];
	if(vec.size() % 2 == 1)
	{
		vec.push_back(-now);
		swap(vec[vec.size() - 1] , vec[vec.size() - 2]);
	}
	for(int i = 0 ; i < vec.size() ; i++)
		v[i % 2].push_back(vec[i]);
	X[now - 1] = Solve(v[0]);
	Y[now - 1] = Solve(v[1]);
	return -now;
}

void Build(int v)
{
	//cout << "WTF " << endl;
	if(adj[v].empty())
	{
		C[v] = 0;
		return;
	}
	/*cout << "HI " << endl;
	cout << Solve(adj[v]) << endl;
	cout << "WETRW RW REWE " << endl;*/
	C[v] = Solve(adj[v]);
	/*cout << C[v] << endl;
	cout << "BYE " << endl;*/
}

void create_circuit(int mm , vector <int> A)
{
	n = A.size();
	m = mm;
	C.resize(m + 1);
	adj[0].push_back(A[0]);
	for(int i = 0 ; i + 1 < n ; i++)
		adj[A[i]].push_back(A[i + 1]);
	adj[A.back()].push_back(0);
	for(int i = 0 ; i <= m ; i++)
	{
		//cout << i << " : " << endl;
		Build(i);
	}
	answer(C , X , Y);
}

Compilation message (stderr)

doll.cpp: In function 'int Solve(std::vector<int>)':
doll.cpp:23:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   23 |  for(int i = 0 ; i < vec.size() ; i++)
      |                  ~~^~~~~~~~~~~~

• Subtask 1: 2 / 2
• Subtask 2: 4 / 4
• Subtask 3: 10 / 10
• Subtask 4: 0 / 10
• Subtask 5: 9.0000000036 / 18
• Subtask 6: 28.0000000112 / 56