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Merged
merged 1 commit into from
Dec 29, 2022
Merged

Create 0463-island-perimeter.kt #1682

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Create 0463-island-perimeter.kt
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@a93a
a93a committed Dec 29, 2022
commit ce2a1ee88eb66290c41de38a52b5840616115383
19 changes: 19 additions & 0 deletions kotlin/0463-island-perimeter.kt
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Original file line number Diff line number Diff line change
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class Solution {
fun islandPerimeter(grid: Array<IntArray>): Int {
if(grid.size == 0 || grid[0].size == 0)
return 0
var res = 0
for(i in 0..grid.size-1){
for(j in 0..grid[0].size-1){
if(grid[i][j]==1){
res += 4
if(i > 0 && grid[i-1][j]==1)
res -= 2
if(j > 0 && grid[i][j-1]==1)
res -= 2
}
}
}
return res
}
}