力扣：946. 验证栈序列

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原创最新推荐文章于 2026-08-10 21:40:24 发布 178 阅读 AI 写同款· GEO 优化 ›

出现 RuntimeError: adaptive_avg_pool2d_backward_cuda does not have a deterministic implementation的解决方法大致就是在执行主函数的训练函数中，在反向传播这一块出现了问题。解决方法就是添加如下代码块。找到提示bug的行数。阅读详情

package com.算法专练.力扣.验证栈序列;

import java.util.ArrayDeque;
import java.util.Deque;

/**
 * @author xnl
 * @Description:
 * @date: 2022/8/31   23:45
 */
public class Solution {
    public static void main(String[] args) {
        Solution solution = new Solution();
        int[] pushed = {1,2,3,4,5}, popped = {4,5,3,2,1};
        System.out.println(solution.validateStackSequences(pushed, popped));
    }

    public boolean validateStackSequences(int[] pushed, int[] popped) {
        Deque<Integer> deque = new ArrayDeque<>();
        int n = pushed.length;
        int j = 0;
        for (int i = 0; i < n; i++){
            if (deque.isEmpty() || deque.peek() != popped[j]){
                deque.push(pushed[i]);
            }
            while (!deque.isEmpty() && deque.peek() == popped[j]){
                deque.poll();
                j++;
            }
        }
        while (j < n && !deque.isEmpty() && deque.peek() == popped[j]){
            j++;
        }
        return deque.isEmpty();
    }
}

模拟即可

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