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Implement the MyStack. (A lot of questions about multi-threading) @protocol Stack -(void)pushObject:(nonnull id)obj; -(nonnull id)popObjext; @property(nonatomic,assign)NSInteger count; @end @interface MyStack : NSObject <Stack> @end @implementation MyStack @end
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IOS Developer

Interviewed at Booking.com

4★
Aug 26, 2016

Implement the MyStack. (A lot of questions about multi-threading) @protocol Stack -(void)pushObject:(nonnull id)obj; -(nonnull id)popObjext; @property(nonatomic,assign)NSInteger count; @end @interface MyStack : NSObject <Stack> @end @implementation MyStack @end

There are 4 people who want to cross a bridge. They each take 1, 2, 5 and 8 minutes. Only 2 people can cross at a time and they take as long as the slowest person. What is the fastest time you can get everyone across? Then I was asked to write the mathematical equation to determine the trade-off point between each of the 2 approaches to solving this.
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Software Developer

Interviewed at Microsoft

4★
May 2, 2011

There are 4 people who want to cross a bridge. They each take 1, 2, 5 and 8 minutes. Only 2 people can cross at a time and they take as long as the slowest person. What is the fastest time you can get everyone across? Then I was asked to write the mathematical equation to determine the trade-off point between each of the 2 approaches to solving this.

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