题解 | #包含min函数的栈#
包含min函数的栈
https://www.nowcoder.com/practice/4c776177d2c04c2494f2555c9fcc1e49
使用数组模拟栈，栈顶使用rear不断移动，rear初始值为-1
public class Solution {
int[] stack = new int[301];
int rear = -1;
public void push(int node) {
if(rear>=301) return;
rear++;
stack[rear] = node;
}
public void pop() {
if(rear==-1) return;
int n = stack[rear];
rear--;
System.out.println(n);
}
public int top() {
return stack[rear];
}
public int min() {
if(rear==-1) return -10001;
int min = stack[0];
for(int i=1;i<=rear;i++){
if(min>stack[i])
min = stack[i];
}
return min;
}
}