Plus One
Easy
Array
Math
Carry

You are given a large integer represented as an integer array digits, where each digits[i] is the ith digit of the integer. The digits are ordered from most significant to least significant in left-to-right order. The large integer does not contain any leading zero, except the number 0 itself. Increment the large integer by one and return the resulting array of digits.

Examples:

Input:[1,2,3]
Output:[1,2,4]
Explanation: The array represents the integer 123. Incrementing by one gives 123 + 1 = 124.
Input:[4,3,2,1]
Output:[4,3,2,2]
Explanation: The array represents the integer 4321. Incrementing by one gives 4321 + 1 = 4322.
Input:[9]
Output:[1,0]
Explanation: The array represents the integer 9. Incrementing by one gives 9 + 1 = 10.

Constraints:

  • 1 ≤ digits.length ≤ 100
  • 0 ≤ digits[i] ≤ 9
  • digits does not contain any leading zeros except for the number 0 itself.
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