제출 #429415

#제출 시각아이디문제언어결과실행 시간메모리
429415JUANDI321식물 비교 (IOI20_plants)C++17
5 / 100
103 ms7916 KiB
#include "plants.h"
#include <vector>
#include <iostream>
 
using namespace std;
int l[200100];
int n;
void init(int k, vector<int> r) 
{
	int nn = r.size();
	n = nn;
	l[0] = 200100;
	for(int i = 0; i<n; i++)
	{
		if(r[i] == 1)l[i+1] = l[i] + 1;
		else l[i+1] = l[i] - 1;
	}
	return;
}
 
int compare_plants(int x, int y) 
{
	if( y-x == l[y]-l[x])return -1;
	if( y-x == -1 *(l[y]-l[x]))return 1;
	if( n-y + x == l[n]-l[y] + l[x] - l[0])return 1;
	if( n-y + x == -1*(l[n]-l[y] + l[x] - l[0]))return -1;
	return 0;
}
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