Minimum Sum of Four Digit Number
Easy
Math
Math
Greedy
Sorting
Split 4-digit num into two 2-digit numbers to minimize their sum.
Constraints
1000 ≤ num ≤ 9999
Examples
Example 1:
Input: 2932
Output: 52
Explanation: Digits: 2,3,2,9 → 22+39=52 or 23+29=52
Example 2:
Input: 4009
Output: 13
Tests:
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