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java: add «2022. Convert 1D Array Into 2D Array»

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Signed-off-by: Matej Focko <me@mfocko.xyz>
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Matej Focko 2024-09-01 13:53:04 +02:00
parent f848a7b9c7
commit 4e73b65849
Signed by: mfocko
SSH key fingerprint: SHA256:icm0fIOSJUpy5+1x23sfr+hLtF9UhY8VpMC7H4WFJP8
1 changed files with 15 additions and 0 deletions
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java/convert-1d-array-into-2d-array.java Normal file
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class Solution {
public int[][] construct2DArray(int[] original, int m, int n) {
if (original.length != m * n) {
return new int[0][0];
}
var array = new int[m][n];
for (int i = 0; i < m * n; ++i) {
int y = i / n, x = i % n;
array[y][x] = original[i];
}
return array;
}
}