| # | 제출 시각 | 아이디 | 문제 | 언어 | 결과 | 실행 시간 | 메모리 |
|---|---|---|---|---|---|---|---|
| 1345329 | killerzaluu | 밀림 점프 (APIO21_jumps) | C++20 | 4051 ms | 14484 KiB |
#include <bits/stdc++.h>
using namespace std;
static int N;
static vector<int> H;
static vector<vector<int>> adj;
void init(int n, vector<int> h) {
N = n;
H = h;
adj.assign(N, {});
for (int i = 0; i < N; i++) {
for (int j = i - 1; j >= 0; j--) {
if (H[j] > H[i]) {
adj[i].push_back(j);
break;
}
}
for (int j = i + 1; j < N; j++) {
if (H[j] > H[i]) {
adj[i].push_back(j);
break;
}
}
}
}
int minimum_jumps(int A, int B, int C, int D) {
vector<int> dist(N, -1);
queue<int> q;
for (int i = A; i <= B; i++) {
dist[i] = 0;
q.push(i);
}
while (!q.empty()) {
int u = q.front();
q.pop();
if (C <= u && u <= D) return dist[u];
for (int v : adj[u]) {
if (dist[v] == -1) {
dist[v] = dist[u] + 1;
q.push(v);
}
}
}
return -1;
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