Submission #1051465

#	Time	Username	Problem	Language	Result	Execution time	Memory
1051465		LittleOrange	Comparing Plants (IOI20_plants)	C++17	0 / 100	1 ms	348 KiB

plants

#include "plants.h"
#include<bits/stdc++.h>
using namespace std;
using ll = int;
namespace{
	vector<ll> a;
	ll n;
}

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

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

• Subtask 1: 0 / 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