| 题目 | Random_chen | rising0312 | selia | sum |
| Educational Codeforces Round 94 |
| C | | | | |
| D | | | | |
| E | | | | |
| F | $\surd$ | | | $\surd$ |
| G | | | $\surd$ | $\surd$ |
| Codeforces Round #665 (Div. 2) | $\surd$ |
| C | $\surd$ | | | $\surd$ |
| D | $\surd$ | | | $\surd$ |
| E | $\surd$ | | | $\surd$ |
| F | $\surd$ | | | $\surd$ |
| Codeforces Global Round 10 |
| A | | $\surd$ | | $\surd$ |
| B | | $\surd$ | | $\surd$ |
| C | | $\surd$ | | $\surd$ |
| D | | $\surd$ | | $\surd$ |
| E | | $\surd$ | | $\surd$ |
| F | | | $\surd$ | $\surd$ |
| G | | | | |
| H | | | | |
| I | | | | |
| Educational Codeforces Round 93 |
| C | | $\surd$ | $\surd$ | $\surd$ |
| D | | $\surd$ | $\surd$ | $\surd$ |
| E | | $\surd$ | $\surd$ | $\surd$ |
| F | | | $\surd$ | $\surd$ |
| G | | | | |
| Codeforces Round #664 (Div. 1) |
| A | $\surd$ | | | $\surd$ |
| B | $\surd$ | | | $\surd$ |
| C | | | | |
| D | $\surd$ | | | $\surd$ |
| E | | | | |
| Codeforces Round #664 (Div. 2) | $\surd$ |
| C | $\surd$ | $\surd$ | | $\surd$ |
| Codeforces Round #663 (Div. 2) | $\surd$ |
| C | $\surd$ | | $\surd$ | $\surd$ |
| D | $\surd$ | | | $\surd$ |
| E | | | $\surd$ | $\surd$ |
| Codeforces Round #662 (Div. 2) | $\surd$ |
| C | $\surd$ | | | $\surd$ |
| D | $\surd$ | | | $\surd$ |
| E1 | | | $\surd$ | $\surd$ |
| E2 | | | $\surd$ | $\surd$ |
| Codeforces Round #660 (Div. 2) | $\surd$ |
| C | $\surd$ | | $\surd$ | $\surd$ |
| D | $\surd$ | | | $\surd$ |
| E | | | $\surd$ | $\surd$ |
| Educational Codeforces Round 92 | $\surd$ |
| C | | | $\surd$ | $\surd$ |
| D | | | $\surd$ | $\surd$ |
| E | | | $\surd$ | $\surd$ |
| F | | | $\surd$ | $\surd$ |
| G | | | $\surd$ | $\surd$ |
| Codeforces Round #659 (Div. 1) |
| A | | | $\surd$ | $\surd$ |
| B | | | $\surd$ | $\surd$ |
| C | | | $\surd$ | $\surd$ |
| D | | $\surd$ | | $\surd$ |
| E | | | $\surd$ | $\surd$ |
| F | | | | |
| Codeforces Round #658 (Div. 1) |
| A1 | $\surd$ | | | $\surd$ |
| A2 | $\surd$ | | | $\surd$ |
| B | $\surd$ | | | $\surd$ |
| C | | | $\surd$ | $\surd$ |
| D | | | $\surd$ | $\surd$ |
| E | | | | |
| Codeforces Round #657 (Div. 2) | $\surd$ |
| A | $\surd$ | | $\surd$ | $\surd$ |
| B | $\surd$ | | $\surd$ | $\surd$ |
| C | $\surd$ | | $\surd$ | $\surd$ |
| D | $\surd$ | | | $\surd$ |
| E | | $\surd$ | | $\surd$ |
| F1 | | | $\surd$ | $\surd$ |
| F2 | | | $\surd$ | $\surd$ |
| Educational Codeforces Round 91 | $\surd$ |
| C | | $\surd$ | | $\surd$ |
| D | $\surd$ | | | $\surd$ |
| E | $\surd$ | | $\surd$ | $\surd$ |
| F | | $\surd$ | | $\surd$ |
| G | $\surd$ | | | $\surd$ |
| Codeforces Round #655 (Div. 2) | $\surd$ |
| A | $\surd$ | | $\surd$ | $\surd$ |
| B | $\surd$ | | $\surd$ | $\surd$ |
| C | $\surd$ | | $\surd$ | $\surd$ |
| D | $\surd$ | | $\surd$ | $\surd$ |
| E | $\surd$ | | | $\surd$ |
| F | | | $\surd$ | $\surd$ |