#1812Medium#20 in Expedia Group's list· asked at 15 companies
String to Integer (atoi)
Hosted on LeetCode
Solve it on LeetCode, track it here.
This problem's full statement lives on LeetCode. Open it in a new tab, then come back to mark it solved, add notes and keep your streak.
LeetCode Premium locked?
Most company-tagged LeetCode problems are behind Premium. If you have ChatGPT Plus or Claude Pro, ask it for the full statement, examples and constraints. The buttons below open a chat with the prompt already filled in.
What we know
Example 1
Input: s = "42" Output: 42
Example 2
Input: s = " -042" Output: -42
Whitespace is skipped, the sign is read, leading zeros are dropped.
Example 3
Input: s = "1337c0d3" Output: 1337
Reading stops at the first non-digit.
Constraints
- •
0 <= s.length <= 200 - •
sconsists of English letters, digits, ' ', '+', '-', and '.'.