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Stacks are crucial in recursive algorithms because they support backtracking by maintaining a history of function calls. Every recursive call is pushed onto the stack, and when a base condition is met, the stack unwinds (pops) the calls in reverse order. This property is integral for problems like solving mazes, tree traversal (DFS), or evaluating expressions. The Last-In-First-Out (LIFO) nature of stacks ensures that the most recent state is resumed first, making them perfect for backtracking scenarios. Why Other Options Are Incorrect · Option 1 (Efficient sorting): Stacks are not inherently used for sorting. Algorithms like Quick Sort and Merge Sort do not directly depend on stacks for sorting efficiency. · Option 2 (Memory allocation for variables): This is managed by the program's runtime stack, not the data structure itself. · Option 4 (Managing concurrent processes): This is more relevant to queues or process schedulers. · Option 5 (Sorting data): Stacks are used in algorithms like stack-based parsing but are not designed for general sorting.
In which of the following country 19th Asian Games will be held?
The 'Right to Work' plan, under the National Rural Employment Guarantee Act, 2005, was implemented in how many districts in the first phase?
Bihar Diwas is celebrated on___________
“Mundari” Dance is associated with which state?
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India is a part of which among the following given below?
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The breaking up and decay of exposed rocks by temperature changes, frost action, plants, animals and human activity is called:
In which year was the Doppler effect discovered by Austrian scientist Christian Doppler, that describes the change in frequency of any kind of sound or...
