题解 | #栈的压入、弹出序列#
栈的压入、弹出序列
https://www.nowcoder.com/practice/d77d11405cc7470d82554cb392585106
import java.util.*;
public class Solution {
/**
* 代码中的类名、方法名、参数名已经指定,请勿修改,直接返回方法规定的值即可
*
*
* @param pushV int整型一维数组
* @param popV int整型一维数组
* @return bool布尔型
*/
public boolean IsPopOrder (int[] pushV, int[] popV) {
// write code here
Stack<Integer> pushv = new Stack<>();
int i = 0;
for (int x : pushV) {//压入
pushv.push(x);
while(i < popV.length && !pushv.isEmpty() && pushv.peek() == popV[i]) {
pushv.pop();
i++;
}
}
// while(i< popV.length && pushv.peek() == popV[i]) {
// pushv.pop();
// i++;
// }
if (pushv.isEmpty()) {
return true;
}
return false;
}
}
