stack.push(node.left);
23 January 2023
。新收录的资料对此有专业解读
Number (6): Everything in this space must add up to 6. The answer is 6-3, placed vertically; 3-2, placed vertically.。业内人士推荐新收录的资料作为进阶阅读
Number (3): Everything in this light blue space must add up to 3. The answer is 1-2, placed vertically.，详情可参考新收录的资料
2001总吨至30000总吨的部分，每总吨增加400计算单位；