Stack with Minimum Query
Stack with Minimum Query
EasyStacks0% accepted
Given a sequence of PUSH and MIN operations, process each. PUSH X adds X to the stack. MIN prints the current minimum value in the stack. This is a classic beginner stack problem — track the running minimum as you push elements.
Approach
Given Q operations (PUSH X or MIN), print the current minimum for each MIN operation.
Input
6
PUSH 5
PUSH 3
PUSH 7
MIN
POP
MIN
Output
3 3
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