1300以下

小于 1 分钟约 2 字全民制作人ikun

目录

1.Codeforces Round 784 (Div. 4) D. Colorful Stamp

2.Codeforces Round 784 (Div. 4) E. 2-Letter Strings

3.Codeforces Round 784 (Div. 4) H. Maximal AND

4.Codeforces Round 797 (Div. 3) D. Black and White Stripe

5.Codeforces Round 827 (Div. 4) E. Scuza

6.Codeforces Round 863 (Div. 3) C. Restore the Array