Submission #1081839

#	Time	Username	Problem	Language	Result	Execution time	Memory
1081839		wood	Comparing Plants (IOI20_plants)	C++17	5 / 100	82 ms	8028 KiB

plants

#include "plants.h"
#include <bits/stdc++.h>
using namespace std;
#define vi vector<int>

vi pref;
int n;

void init(int k, std::vector<int> r) {
	n = r.size();
	pref.resize(n+1);
	for(int i = 0; i<n; i++)
		pref[i+1] = pref[i]+r[i];
}

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

• Subtask 1: 5 / 5
• Subtask 2: 0 / 14
• Subtask 3: 0 / 13
• Subtask 4: 0 / 17
• Subtask 5: 0 / 11
• Subtask 6: 0 / 15
• Subtask 7: 0 / 25