Computers and Technology, 07.12.2021 06:00 keilahkimbrough8
public List shortestPath(T v1, T v2) { // TODO: Find shortest path from v1 to v2. // Our solution works backwards because ImmutableStack works that way. // Our solution is 16 lines long and uses the following other classes: // * ArrayDeque (implementation of Queue) // * ImmutableStack (to keep partial paths to the destination) // * HashSet (for the visited set) // * ArrayList (to return the final path) // You are welcome to write and use new helper methods, but not to add fields. boolean visited[]
Answers: 2
Computers and Technology, 23.06.2019 15:00
Barbara is interested in pursuing a career in the science and math pathway. which qualifications will her reach that goal? a.an advanced knowledge of physics and math b.an advanced knowledge of engineering and math c. an advanced knowledge of physics and robotics an d. advanced knowledge of machinery and math
Answers: 1
Computers and Technology, 23.06.2019 17:30
When making changes to optimize part of a processor, it is often the case that speeding up one type of instruction comes at the cost of slowing down something else. for example, if we put in a complicated fast floating-point unit, that takes space, and something might have to be moved farther away from the middle to accommodate it, adding an extra cycle in delay to reach that unit. the basic amdahl's law equation does not take into account this trade-off. a. if the new fast floating-point unit speeds up floating-point operations by, on average, 2ă—, and floating-point operations take 20% of the original program's execution time, what is the overall speedup (ignoring the penalty to any other instructions)? b. now assume that speeding up the floating-point unit slowed down data cache accesses, resulting in a 1.5ă— slowdown (or 2/3 speedup). data cache accesses consume 10% of the execution time. what is the overall speedup now? c. after implementing the new floating-point operations, what percentage of execution time is spent on floating-point operations? what percentage is spent on data cache accesses?
Answers: 2
Computers and Technology, 24.06.2019 00:20
Describe a data structures that supports the stack push and pop operations and a third operation findmin, which returns the smallest element in the data structure, all in o(1) worst-case time.
Answers: 2
public List shortestPath(T v1, T v2) { // TODO: Find shortest path from v1 to v2. // Our solution wo...
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