@dl1812 Cái mày nói là Pseudocode đó hả. Tao vừa hóng khoá CS 50 Lếu lều nó chỉ:
We can write
pseudocode, which is a representation of our algorithm in precise English (or some other human language):
1 Pick up phone book
2 Open to middle of phone book
3 Look at page
4 If person is on page
5 Call person
6 Else if person is earlier in book
7 Open to middle of left half of book
8 Go back to line 3
9 Else if person is later in book
10 Open to middle of right half of book
11 Go back to line 3
12 Else
13 Quit