제출 #971441

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
971441		Pannda	Rainforest Jumps (APIO21_jumps)	C++17	8 / 100	4010 ms	1048576 KiB

jumps

#include "jumps.h"
 
#include <bits/stdc++.h>
using namespace std;
 
const int INF = 1e9 + 12345;
vector<vector<int>> dist;
void init(int n, vector<int> h) {
    dist = vector<vector<int>>(n, vector<int>(n, INF));
    for (int i = 0; i < n; i++) {
        dist[i][i] = 0;
    }
    for (int i = 0; i < n; i++) {
        for (int j = i - 1; j >= 0; j--) {
            if (h[j] > h[i]) {
                dist[i][j] = 1;
                break;
            }
        }
        for (int j = i + 1; j < n; j++) {
            if (h[j] > h[i]) {
                dist[i][j] = 1;
                break;
            }
        }
    }
    for (int m = 0; m < n; m++) {
        for (int i = 0; i < n; i++) {
            for (int j = 0; j < n; j++) {
                dist[i][j] = min(dist[i][j], dist[i][m] + dist[m][j]);
            }
        }
    }
}
 
int minimum_jumps(int l0, int r0, int l1, int r1) {
    r0++; r1++;
    int res = INF;
    for (int i = l0; i < r0; i++) {
        for (int j = l1; j < r1; j++) {
            res = min(res, dist[i][j]);
        }
    }
    if (res == INF) return -1;
    return res;
}

• Subtask 1: 0 / 4
• Subtask 2: 8 / 8
• Subtask 3: 0 / 13
• Subtask 4: 0 / 12
• Subtask 5: 0 / 23
• Subtask 6: 0 / 21
• Subtask 7: 0 / 19