http://acm.sdut.edu.cn/onlinejudge2/index.php/Home/Contest/contestproblem/cid/2599/pid/3666
http://axuhongbo.top/paste/view/0dbfe4b5
表达式语法分析——递归子程序法
http://acm.sdut.edu.cn/onlinejudge2/index.php/Home/Contest/contestproblem/cid/2599/pid/2147.html
http://axuhongbo.top/paste/view/3d8b6490
翻译布尔表达式 -- 拉链回填
http://acm.sdut.edu.cn/onlinejudge2/index.php/Home/Contest/contestproblem/cid/2599/pid/3515.html
http://axuhongbo.top/paste/view/c4e389b0
简单的代码生成程序
http://acm.sdut.edu.cn/onlinejudge2/index.php/Home/Contest/contestproblem/cid/2599/pid/3668.html
http://axuhongbo.top/paste/view/4f221c2b
DAG优化
http://acm.sdut.edu.cn/onlinejudge2/index.php/Home/Contest/contestproblem/cid/2599/pid/3516.html
http://axuhongbo.top/paste/view/fc47db54