Number from Reversed Digit Array
EasyP3Coding
digits holds decimal digits (0 to 9). Build the number formed by reading the digits from the last element to the first, and return it as an integer. Leading zeros in the result disappear, so [1,0,0] gives 1. An empty array gives 0.
Example 1
- Input
- digits = [1,2,3]
- Output
- 321
- Why
- Reading 3, 2, 1 gives 321.
Example 2
- Input
- digits = [0]
- Output
- 0
Example 3
- Input
- digits = []
- Output
- 0
Constraints
- 0 <= digits.length <= 15
- 0 <= digits[i] <= 9
Hints
Give it a real attempt first. Run shows which examples fail.
Saved automatically
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