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g3301_3400.s3340_check_balanced_string.readme.md Maven / Gradle / Ivy

3340\. Check Balanced String

Easy

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 is `2 + 4 == 6`.
*   Since 4 is not equal to 6, `num` is 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 is `4 + 2 == 6`.
*   Since both are equal the `num` is balanced.

**Constraints:**

*   `2 <= num.length <= 100`
*   `num` consists of digits only