given a NxM integer matrix and i1,j1,i2,j2
such that i1 < i2 and j1 < j2
tell in O(1) that whether all elements in the rectangular submatrix formed by (i1 , j1) , (i1 , j2) , (i2 , j1) , (i2 , j2)
contains all same elements or not .
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Revision en1, by Saksham_Sahgal, 2022-05-01 12:48:15
History
Revisions
| Rev. | Lang. | By | When | Δ | Comment | |
|---|---|---|---|---|---|---|
| en2 |
|
Saksham_Sahgal | 2022-05-01 12:51:34 | 211 | ||
| en1 |
|
Saksham_Sahgal | 2022-05-01 12:48:15 | 279 | Initial revision (published) |
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