1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
| // @Title: 地图中的最高点 (Map of Highest Peak)
// @Author: 15816537946@163.com
// @Date: 2022-01-29 23:26:03
// @Runtime: 96 ms
// @Memory: 14 MB
use std::collections::VecDeque;
impl Solution {
pub fn highest_peak(is_water: Vec<Vec<i32>>) -> Vec<Vec<i32>> {
let directions = vec![(0, 1), (0, -1), (1, 0), (-1, 0)];
let m = is_water.len();
let n = is_water[0].len();
let mut height = vec![vec![-1; n]; m];
let mut deque = VecDeque::new();
for i in 0..m {
for j in 0..n {
if is_water[i][j] == 1 {
height[i][j] = 0;
deque.push_back((i, j, 0));
}
}
}
while !deque.is_empty() {
let (i, j, h) = deque.pop_front().unwrap();
for &(di, dj) in directions.iter() {
let i = i as i32 + di;
let j = j as i32 + dj;
if i < 0 || i >= m as i32 || j < 0 || j >= n as i32 {
continue;
}
let i = i as usize;
let j = j as usize;
if height[i][j] != -1 {
continue;
}
height[i][j] = h + 1;
deque.push_back((i, j, h + 1));
}
}
height
}
}
|