Submission #1014705

#	Time	Username	Problem	Language	Result	Execution time	Memory
1014705		Unforgettablepl	Comparing Plants (IOI20_plants)	C++17	0 / 100	0 ms	600 KiB

plants

#include <bits/stdc++.h>
using namespace std;

vector<int> limit;
vector<int> p;

void init(int k, std::vector<int> r) {
	int n = r.size();
	p.resize(n);
	for(int i=0;i<n;i++)p[i]=min(max(0,r[i]-r[(i+1)%n]),1);
	r=p;
	limit.resize(n);
	vector<bool> visited(n);
	function<int(int,int)> dfs = [&](int x,int type){
		if(r[x]!=type)return x;
		if(visited[x])return limit[x];
		visited[x] = true;
		return limit[x] = dfs((x+1)%n,type);
	};
	for(int i=0;i<n;i++)dfs(i,r[i]);
}

int compare_plants(int x, int y) {
	if(x>y)return -compare_plants(y,x);
	if(limit[x]<x or y<=limit[x]){
		if(p[x])return -1;
		else return 1;
	}
	if(x<=limit[y] and limit[y]<y){
		if(p[y])return 1;
		else 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