Master programming syntax, solve interactive challenges & run live code in Syntaxis Explore Arena →
menu_book Course Curriculum (Data Structures & Algorithms) expand_more
Complexity & Foundations
Arrays & Strings
Linked Lists
Stacks & Queues
Hashing
Trees & Heaps
Graphs
Sorting Searching & DP

Level order traversal

Learn Level order traversal in Data Structures & Algorithms with a focused explanation, a topic-specific example, edge guidance, and a mastery check.

12 min read • Intermediate
data-structures-algorithms-055.py
python
from collections import deque
tree={1:[2,3],2:[4],3:[],4:[]};q=deque([1])
while q:
    n=q.popleft();print(n);q.extend(tree[n])
What to watch
Content source & attribution
Original Syntaxis Content · Original Syntaxis Content