2728脑筋急转弯中等derivationmedium
Ternary Strings With a Modular Count of One Symbol
题目
How many strings of length 8 over the alphabet {A,B,C} contain a number of As congruent to 2 modulo 3?
解题计时
0:00
提交作答时记录，用于后续平均用时统计。
你的答案
题目
How many strings of length 8 over the alphabet {A,B,C} contain a number of As congruent to 2 modulo 3?
解题计时
0:00
提交作答时记录，用于后续平均用时统计。
你的答案