Maurice Tutor

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    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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    Phoniex University
    Oct-2001 - Nov-2016

Category > Computer Science Posted 17 Sep 2017 My Price 4.00

rectangular grid of dimension

You have a rectangular grid of dimension N x M. You need to paint the grid with black or white color such that there is no rectangle of size X x Y having same color in each cell. Find the number of ways to paint the grid, modulo 1000000007.

 

Input

 

A single line containing 4 space separated integers, N, M, X and Y.

 

Output

 

A single line containing the answer modulo 1000000007

 

Constraints

 

  • 1 = X = 3
  • 1 = N = 10^6
  • 2 = Y = M
  • If (X = 1), then M = 10^3, no other constraint on N
  • If (X = 2), then M = 7, no other constraint on N
  • If (X = 3), then N = 8, M = 5

 

Example

Input: 2 2 1 2
Output: 4

Answers

Maurice Tutor
(5)
Status NEW Posted 17 Sep 2017 12:09 PM My Price 4.00

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