WWW.TESTBENCH.IN - Vera Constructs

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Interview Questions

QUEUE METHODS

OpenVera provides the following types of built-in methods for analyzing and manipulating smart queue elements.
# Add/Delete
- delete()
- insert()
# Order
- reverse()
- rsort()
- sort()
- sum()
# Push/Pop
- pop_back()
- pop_front()
- push_back()
- push_front()
# Random
- pick()
- pick_index()
- unique()
- unique_index()
# Search
- find()
- find_index()
- first()
- first_index()
- last()
- last_index()
- max()
- max_index()
- min()
- min_index()
# Size
- capacity()
- empty()
- reserve()
- size()

EXAMPLE :
program main{
integer que[$];
printf(" size of queue %d \n",que.size());
que.push_back(10);
que.push_front(2);
printf(" pop_back is %d \n",que.pop_back());
printf(" pop_front is %d \n",que.pop_front());

que.push_back(1);
que.push_back(2);
que.push_back(3);
printf(" size of queue %d \n",que.size());
que.insert(2,6);
printf(" pop_back is %d \n",que.pop_back());
printf(" pop_back is %d \n",que.pop_back());
}

RESULTS

size of queue 0
pop_back is 10
pop_front is 2
size of queue 3
pop_back is 3
pop_back is 6

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