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index.js
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index.js
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/**
* initialize your data structure here.
*/
var MinStack = function() {
this.stack = [];
};
/**
* @param {number} x
* @return {void}
*/
MinStack.prototype.push = function(x) {
this.stack.push(x);
};
/**
* @return {void}
*/
MinStack.prototype.pop = function() {
return this.stack.pop()
};
/**
* @return {number}
*/
MinStack.prototype.top = function() {
return this.stack[this.stack.length-1]
};
/**
* @return {number}
*/
MinStack.prototype.getMin = function() {
let min;
for(var i = 0; i<this.stack.length; i++){
if(i===0) min = this.stack[0];
else{
min = Math.min(min, this.stack[i])
}
}
return min
};
/**
* Your MinStack object will be instantiated and called as such:
* var obj = Object.create(MinStack).createNew()
* obj.push(x)
* obj.pop()
* var param_3 = obj.top()
* var param_4 = obj.getMin()
*/