🚀

End of Year Sale: Use Coupon Code END2025 to Get Extra 25% Off.

12DAYS
:
01HOURS
:
06MINUTES
:
12SECONDS

Leetcode Problem 1961. Check If String Is a Prefix of Array

1961. Check If String Is a Prefix of Array

Leetcode Solutions

Piecewise Comparison Approach

  • Initialize a position index pos to 0.
  • Iterate through each word in the words array.
    • If the current position pos is less than the length of s and the current word index is within the bounds of the words array:
      • Compare the substring of s starting from pos with the length of the current word to the current word itself.
      • If they do not match, return false.
      • If they match, increment pos by the length of the current word.
  • After the loop, check if pos is equal to the length of s.
    • If it is, return true.
    • Otherwise, return false.
UML Thumbnail

Concatenation and Comparison Approach

Ask Question

Programming Language
image/screenshot of info(optional)
Full Screen
Loading...

Suggested Answer

Answer
Full Screen
Copy Answer Code
Loading...