Leetcode Problem 339. Nested List Weight Sum

339. Nested List Weight Sum

Leetcode Solutions

Depth-first Search Approach

  1. Define a helper function dfs that takes a NestedInteger and the current depth as arguments.
  2. Initialize a variable total to store the running sum.
  3. If the NestedInteger is an integer, multiply its value by the current depth and add it to total.
  4. If the NestedInteger is a list, iterate over its elements and call dfs on each element with the depth incremented by 1.
  5. Return total after processing all elements.
UML Thumbnail

Breadth-first Search Approach

Ask Question

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

Suggested Answer

Answer
Full Screen
Copy Answer Code
Loading...