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4 square at the bottom of the scree, each with one color, once you select one square, the selected color will be that color. (this part was prebuilt by them) Now, use may select any of these colors, and tap on the screen, you should create a square with that color and put it on the screen . Next, add a number to each square you put on the screen, e.g. if there are 2 green, 1 blue already in the screen next green one should be 3. (Use a dictionary to track latest number for each color, tracker = [UIColor: Int]) next implement undo functionality (use a stack) last introduce a redo functionality (use a second stack) On site interview: Hit an API that returns photos, create a photo browsing app like Instagram)
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IOS Engineer

Interviewed at Lyft

3.8★
Dec 27, 2019

4 square at the bottom of the scree, each with one color, once you select one square, the selected color will be that color. (this part was prebuilt by them) Now, use may select any of these colors, and tap on the screen, you should create a square with that color and put it on the screen . Next, add a number to each square you put on the screen, e.g. if there are 2 green, 1 blue already in the screen next green one should be 3. (Use a dictionary to track latest number for each color, tracker = [UIColor: Int]) next implement undo functionality (use a stack) last introduce a redo functionality (use a second stack) On site interview: Hit an API that returns photos, create a photo browsing app like Instagram)

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