1.素数打表
https://blog.csdn.net/asd1637579311/article/details/79964802
2.三种排序
https://blog.csdn.net/qq_38091375/article/details/81436132
https://www.cnblogs.com/hjy9420/p/5032309.html
3.动态规划
4.memset sort
https://blog.csdn.net/whp1473/article/details/79678974
5.最大公约数 最小公倍数
https://blog.csdn.net/horizonhui/article/details/79470722
6.
第四届
https://blog.csdn.net/mcp3128/article/details/79724293
第五届
https://blog.csdn.net/mcp3128/article/details/79710936
第六届：
https://blog.csdn.net/jdqm2014/article/details/67633855
第七届：
https://blog.csdn.net/sihai12345/article/details/69216584
第八届
https://blog.csdn.net/zhangxue1232/article/details/79219635
全排列
https://blog.csdn.net/zhangxiaoduoduo/article/details/79684607