3340. Check Balanced String
Easy82.5% acceptance74,963 / 90,910 submissions
Asked by 1 company
Topics
You are given a string num consisting of only digits. A string of digits is called balanced if the sum of the digits at even indices is equal to the sum of digits at odd indices.
Return true if num is balanced, otherwise return false.
Example 1:
Input: num = "1234"
Output: false
Explanation:
- The sum of digits at even indices is
1 + 3 == 4, and the sum of digits at odd indices is2 + 4 == 6. - Since 4 is not equal to 6,
numis not balanced.
Example 2:
Input: num = "24123"
Output: true
Explanation:
- The sum of digits at even indices is
2 + 1 + 3 == 6, and the sum of digits at odd indices is4 + 2 == 6. - Since both are equal the
numis balanced.
Constraints:
2 <= num.length <= 100numconsists of digits only