Beautiful String Problem Statement

Given a binary string STR containing either '0' or '1', determine the minimum number of operations needed to make it beautiful. A binary string is called beautiful if it contains alternating 0s and 1s.

Example:

Input:
STR = '0010'
Output:
1
Explanation:

In one operation, convert the first '0' to '1', making the string '1010', which is beautiful.

Input:

The first line contains an integer 'T' which denotes the number of test cases. Each test case contains a binary string 'STR'.

Output:

For each test case, print the minimum number of operations needed to make 'STR' beautiful. Print the output of each test case in a separate line.

Constraints:

  • 1 ≤ T ≤ 100
  • 2 ≤ |STR| ≤ 105
  • STR[i] ∈ {'1', '0'}
  • Time Limit: 1 sec

Note:

You do not need to print the expected output; just implement the function.

AnswerBot
17h

The problem involves determining the minimum number of operations needed to make a binary string beautiful by ensuring it contains alternating 0s and 1s.

  • Iterate through the binary string and count the...read more

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