this is the error
stack.cpp||In function ‘int main()’:|
stack.cpp|64|error: request for member ‘push’ in ‘st’, which is of pointer type ‘stack_’ (maybe you meant to use ‘->’ ?)|
stack.cpp|66|error: request for member ‘get_stack’ in ‘st’, which is of pointer type ‘stack_’ (maybe you meant to use ‘->’ ?)|
stack.cpp|67|error: request for member ‘get_stack’ in ‘st’, which is of pointer type ‘stack*’ (maybe you meant to use ‘->’ ?)|
||=== Build finished: 3 errors, 0 warnings ===|

In queue2.cpp, if head is assigned other than 1, after q[n], the new value is not queueing in q[1] .
when dequeued everything and again queueing, the head value is not reset to initial head value.

this program is for predefined length of array. I am working on user input length. having trouble with head and tail update.