---
# System prepended metadata

title: 題目紀錄

---

# 題目紀錄
[Day 5](https://codeforces.com/problemset/problem/1454/D)
[Day 6](https://codeforces.com/problemset/problem/1775/B)
[Day 7](https://codeforces.com/problemset/problem/1583/D)
[Day 8](https://codeforces.com/problemset/problem/1504/B)
[Day 9](https://codeforces.com/problemset/problem/1497/C2)
[Day 10](https://codeforces.com/problemset/problem/1381/A1)
[Day 11](https://codeforces.com/problemset/problem/1740/C)
[Day 12](https://codeforces.com/problemset/problem/1118/E)
[Day 13](https://codeforces.com/problemset/problem/1136/C)
[Day 14](https://codeforces.com/problemset/problem/1516/C)
[Day 15](https://codeforces.com/problemset/problem/1353/D)
[Day 16](https://codeforces.com/problemset/problem/1023/D)
[Day 17](https://codeforces.com/problemset/problem/1672/D)
[Day 18](https://codeforces.com/problemset/problem/1384/A)
[Day 19](https://codeforces.com/problemset/problem/1360/F)
[Day 20](https://codeforces.com/problemset/problem/1395/B)
[Day 21](https://codeforces.com/problemset/problem/1761/C)
[Day 22](https://codeforces.com/problemset/problem/1043/C)
[Day 23](https://codeforces.com/problemset/problem/1630/A)
[Day 24](https://codeforces.com/problemset/problem/1774/C)
5/1
[Day 25](https://codeforces.com/problemset/problem/1088/C)
5/2
[Day 26](https://codeforces.com/problemset/problem/1042/C)
5/3
[Day 27](https://codeforces.com/problemset/problem/1068/C)
5/4
[Day 28](https://codeforces.com/problemset/problem/1809/C)
5/5
[Day 29](https://codeforces.com/problemset/problem/1063/A)
5/6
[Day 30](https://codeforces.com/problemset/problem/1196/E)
5/7
[Day 31](https://codeforces.com/problemset/problem/1401/C)
5/8
[Day 32](https://codeforces.com/problemset/problem/1272/B)
5/9
[Day 33](https://codeforces.com/problemset/problem/1254/A)
5/10
>> 被簡單題梗到了，幹，小心又有構造又有數學標籤的東東

[Day 34](https://codeforces.com/problemset/problem/1455/B)

5/11
>> 又..又被梗到了

[Day 35](https://codeforces.com/problemset/problem/1579/D)

5/12
>> 幹！我覺得這題根本不只1600的難度，最後的做法得用通靈出來的，實作上又不直覺，我到做完為止還是搞不懂

[Day 36](https://codeforces.com/problemset/problem/1017/C)

5/13
>> 哭，我想了一陣子去看題解，有種被暴雷的感覺...這題是很經典的構造題

[Day 37](https://codeforces.com/problemset/problem/1368/C)

5/14
[Day 38](https://codeforces.com/problemset/problem/1270/C)
[Day 39](https://codeforces.com/problemset/problem/1687/B)
[Day 40](https://codeforces.com/problemset/problem/1781/C)
[Day 41](https://codeforces.com/problemset/problem/1806/C)
[Day 42](https://codeforces.com/problemset/problem/1215/C)
[Day 43](https://codeforces.com/problemset/problem/1662/M)
[Day 44](https://codeforces.com/problemset/problem/1725/H)
[Day 45](https://codeforces.com/problemset/problem/1266/C)
[Day 46](https://codeforces.com/problemset/problem/1781/C)
以後盡量挑Codeforces round 450後的比賽，題目編號大概得>900
rating 選擇更動成1200~2000
[Day 47](https://codeforces.com/problemset/problem/1776/F)
[Day 48](https://codeforces.com/problemset/problem/1747/D)
[Day 49](https://codeforces.com/problemset/problem/1103/B)
[Day 50](https://codeforces.com/problemset/problem/1365/E)