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14 lines
462 B
HTML
14 lines
462 B
HTML
<p>How would you design a stack which, in addition to push and pop, has a function min which returns the minimum element? Push, pop and min should all operate in 0(1) time.</p>
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<p><strong>Example: </strong></p>
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<pre>
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MinStack minStack = new MinStack();
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minStack.push(-2);
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minStack.push(0);
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minStack.push(-3);
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minStack.getMin(); --> return -3.
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minStack.pop();
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minStack.top(); --> return 0.
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minStack.getMin(); --> return -2.</pre>
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