2020
- 2020-02-01AcWing - 156 矩阵(二维哈希)
- 2020-01-21ZOJ - 3203 Light Bulb(三分)
- 2020-01-21POJ - 1845 Sumdiv(分治)
- 2020-01-15Codeforces Global Round 6 - D. Decreasing Debts(思维)
- 2020-01-15Codeforces Round 608 (Div. 2) - D. Portals(贪心)
2019
- 2019-12-25Educational Codeforces Round 77 (Rated for Div. 2) - D. A Game with Traps(二分)
- 2019-11-23Codeforces Round 600 (Div. 2) - B. Silly Mistake(模拟)
- 2019-11-18Educational Codeforces Round 76 (Rated for Div. 2) - D. Yet Another Monster Killing Problem(贪心)
- 2019-10-22Codeforces Round 594 (Div. 2) - C. Ivan the Fool and the Probability Theory(思维)
