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Microsoft Interview Question for Software Engineer / Developers


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{
int pixelPos = getScreenWidth() * y + x;
pixelArray[pixelPos] = true;
}

- Anonymous January 03, 2010 | Flag Reply
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int pixelPos = getScreenWidth() * y + x;
  pixelArray[pixelPos] = true;

- Anonymous January 03, 2010 | Flag Reply
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if you are measuring width along x axis dont you think it should be
getScreenWidth() * x + y e.g. (1,2) would be stored in the 73rd position if width is 70 (lets say). Correct me if i am wrong or reading it incorrectly.)

- hary February 19, 2010 | Flag
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int pixelPos = (getScreenWidth() - 1) * y + x;
  pixelArray[pixelPos] = true;

- pixelator March 20, 2010 | Flag
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you guys sure abt the expression you have used for pixelPos?
IMO, it should be something like this:
pixelPos=no_of_cols*(x-1)+y

- Anonymous January 04, 2010 | Flag Reply
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No you are wrong. (x,y) here does not denote a matrix element. It denotes a coordinate of a point.

- spsneo January 25, 2010 | Flag
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you guys sure abt the expression you have used for pixelPos?
IMO, it should be something like this:
pixelPos=no_of_cols*(x-1)+y

- aadith January 04, 2010 | Flag Reply
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Doesnt setpixel(x,y) simply work?

- helloworld January 05, 2010 | Flag Reply
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No it wont work.

- Anonymous January 06, 2010 | Flag Reply
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Say resolutio is :640x480

GetPos(1,1) should return 0
GetPos(2,1) should return 1
GetPos(3,1) should return 2
GetPos(640,480) should return 306081

so the formula should be
GetPos(x,y)
{
return Width*(y-1) + (x-1)
}

- Crime_master_gogo August 01, 2010 | Flag Reply


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