제출 #570049

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
570049		Cyber_Wolf	밀림 점프 (APIO21_jumps)	C++14	0 / 100	4062 ms	1048576 KiB

jumps

#include "jumps.h"
//#include "stub.cpp"
#include <bits/stdc++.h>

using namespace std;

#define lg long long

const lg sz = 2e5+5;

vector<lg> adj[sz];

void init(int N, std::vector<int> H) 
{
	for(int i = 0; i < N; i++)
	{
		lg idx = i-1;
		while(idx >= 0)
		{
			if(H[idx] > H[i])
			{
				adj[i].push_back(idx);
				break;
			}
			idx--;
		}
		idx = i+1;
		while(idx < N)
		{
			if(H[idx] > H[i])
			{
				adj[i].push_back(idx);
				break;
			}
			idx++;
		}
	}
}

int minimum_jumps(int A, int B, int C, int D)
{
	lg ans = -1;
	queue<lg> q;
	for(int i = A; i <= B; i++)	q.push(i);
	lg dist = 0;
	while(q.size() && ans == -1)
	{
		lg sz = q.size();
		dist++;
		while(sz-- && ans == -1)
		{
			lg u = q.front();
			q.pop();
			for(auto it : adj[u])
			{
				if(it >= C && it <= D)
				{
					ans = dist;
					break;
				}
				q.push(it);
			}
		}
	}
	
	return ans;
}

• Subtask 1: 0 / 4
• Subtask 2: 0 / 8
• Subtask 3: 0 / 13
• Subtask 4: 0 / 12
• Subtask 5: 0 / 23
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• Subtask 7: 0 / 19