Coloring Pixels
Swipe to start coding
Imagine you have an image a
of size m*n
, and there are some areas painted black or white (marked 1 or 0 in array). When you touch the pixel a[i][j]
, you color it with number 2, and if you colored some pixel, you’ll also color all 4-directionally connected pixels of the same color.
Example 1
Input: m=4, n=6, x=1, y=2
1 1 1 0 0 0
0 1 1 0 0 0
1 1 0 0 1 1
0 0 1 1 0 0
Output:
2 2 2 0 0 0
0 2 2 0 0 0
2 2 0 0 1 1
0 0 1 1 0 0
Example 2
Input: m=4, n=6, x=2, y=5
1 1 1 0 0 0
0 1 1 0 0 0
1 1 0 0 1 1
0 0 1 1 0 0
Output:
1 1 1 0 0 0
0 1 1 0 0 0
1 1 0 0 2 2
0 0 1 1 0 0
¡Gracias por tus comentarios!
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Coloring Pixels
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Swipe to start coding
Imagine you have an image a
of size m*n
, and there are some areas painted black or white (marked 1 or 0 in array). When you touch the pixel a[i][j]
, you color it with number 2, and if you colored some pixel, you’ll also color all 4-directionally connected pixels of the same color.
Example 1
Input: m=4, n=6, x=1, y=2
1 1 1 0 0 0
0 1 1 0 0 0
1 1 0 0 1 1
0 0 1 1 0 0
Output:
2 2 2 0 0 0
0 2 2 0 0 0
2 2 0 0 1 1
0 0 1 1 0 0
Example 2
Input: m=4, n=6, x=2, y=5
1 1 1 0 0 0
0 1 1 0 0 0
1 1 0 0 1 1
0 0 1 1 0 0
Output:
1 1 1 0 0 0
0 1 1 0 0 0
1 1 0 0 2 2
0 0 1 1 0 0
¡Gracias por tus comentarios!
Awesome!
Completion rate improved to 7.69single