A.Character Encoding
Solved by ghk.1:06(+)
- 容斥一下。
B.Pizza Hub
Upsolved by ghk.
- 比赛时写错一个变量,而且代码极长。
D.Parentheses Matrix
Solved by jjm.3:59(+)
- 构造。
E.Magic Square
Solved by ghk.0:18(+)
J.Taotao Picks Apples
Solved by ghk.1:51(+1)
- 二分+ST确定后面第一个大于它的数字,预处理前缀后缀。
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