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.
\n
Example 1:
\n\nInput: num = "1234"
\n\nOutput: false
\n\nExplanation:
\n\n1 + 3 == 4, and the sum of digits at odd indices is 2 + 4 == 6.num is not balanced.Example 2:
\n\nInput: num = "24123"
\n\nOutput: true
\n\nExplanation:
\n\n2 + 1 + 3 == 6, and the sum of digits at odd indices is 4 + 2 == 6.num is balanced.\n
Constraints:
\n\n2 <= num.length <= 100num consists of digits onlyCompiled with clang 17 using the latest C++ 23 standard, and libstdc++ provided by GCC 13.
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