제출 #301530

#제출 시각아이디문제언어결과실행 시간메모리
301530maximath_1Comparing Plants (IOI20_plants)C++11
5 / 100
111 ms5240 KiB
#include "plants.h"
#include <vector>
using namespace std;

int n;
vector<int> pref;

void init(int k, vector<int> r){
	n = r.size();
	pref.resize(n + 1);
	for(int i = 1; i <= n; i ++)
		pref[i] = pref[i - 1] + r[i - 1];
	return;
}

int compare_plants(int x, int y){
	if(pref[y] == pref[x]) return 1;
	if(pref[y] - pref[x] == y - x) return -1;
	if(pref[n] - (pref[y] - pref[x]) == n - (y - x)) return 1;
	if(pref[n] == (pref[y] - pref[x])) return -1;
	return 0;
}
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