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Input:
push(2)
push(3)
pop()
push(4)
pop()
Output: 3 4
Explanation:
push(2) the stack will be {2}
push(3) the stack will be {2 3}
pop() poped element will be 3 the
stack will be {2}
push(4) the stack will be {2 4}
pop() poped element will be 4
The text was updated successfully, but these errors were encountered:
Implement a Stack using two queues q1 and q2.
Example 1:
Input:
push(2)
push(3)
pop()
push(4)
pop()
Output: 3 4
Explanation:
push(2) the stack will be {2}
push(3) the stack will be {2 3}
pop() poped element will be 3 the
stack will be {2}
push(4) the stack will be {2 4}
pop() poped element will be 4
The text was updated successfully, but these errors were encountered: