( LeetCode 946 )验证栈序列 --栈 (Java)
按照pushed数组的顺序入栈,按照poped数组的顺序出栈,最后栈中为空就可以返回true,否则返回false。class Solution { public boolean validateStackSequences(int[] pushed, int[] popped) { Stack<Integer> stack = new Stack<Integer>(); int index = 0