Strange Printer
A strange printer can only print a sequence of the same character each turn. At each turn, the printer can print new characters starting from and ending at any place and will cover the original existing characters. Given a string s, return the minimum number of turns the printer needs to print it.

30:00

Strange Printer
hard
Topics
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A strange printer can only print a sequence of the same character each turn. At each turn, the printer can print new characters starting from and ending at any place and will cover the original existing characters. Given a string s, return the minimum number of turns the printer needs to print it.

Example 1:
Input: {"s":"aaabbb"}
Output: 2
Constraints:

  • 1≤s.length≤1001 \leq s.\text{length} \leq 100

  • s consists of lowercase English letters.

Input
arr ={"s":"aaabbb"}

String: "aaabbb"

String Characters

a

0

a

1

a

2

b

3

b

4

b

5

dp[i][j] = minimum turns to print s[i..j]

Variables
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