Question
What is the main advantage of using a hash table data
structure?Solution
Constant-time access to elements
Two trains are moving in opposite directions at 60 km/hr and 90 km/hr. Their lengths are 1.10 km and 0.9 km respectively. What is the time taken by the ...
A train takes 22 seconds to cross a platform and 9 seconds to cross a pole. If the length of the train is 50 metres less than the length of the platform...
- Train 'R' starts from Lucknow to Kanpur at 5:00 a.m. Train 'S' starts from Kanpur to Lucknow at 7:00 a.m., traveling at 50 km/h. They cross each other at 1...
Train ‘A’ can cross a pole in 10 seconds and a 140 metre long platform in 12 seconds. If the ratio of length of train ‘A’ and train ‘B’ is 2...
A train 250 metre long takes 25 sec to cross a man running at a speed of 9 km/hr in the direction same to that of train. What is the speed of the train?
Train 'A' and Train 'B' pass each other in 10 seconds when moving in opposite directions. If Train 'A' takes 12.5 seconds to pass a pole, and the speed...
A train running with 90km/hr takes 25sec to cross a platform 250 m long. How much it take to cross a stationary train having length of 75m ?
Train Q of length 360m can cross a pole in 12sec and it can cross train P running in opposite direction in 100/7 sec. If the speed of train P is 2/5 of ...
A train crosses a platform in 48 seconds travelling with a speed of 120 km/hr. If the length of the train be 600 metres, then the length (in metres) of ...
A train can cross a pole in 42 seconds. While if the train increased its speed by 55% then time taken by it to cross 231 metres long platform is 42 seco...
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