Unique Paths | Dynamic Programming | Animated DSA Explanation in Java
AlgoRung
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Unique Paths | Dynamic Programming | Animated DSA Explanation in Java
1 просмотр · 2 дн. назад
AlgoRung
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1 просмотр · 2 дн. назад
Unique Paths (Medium) explained step by step with animations: the idea, a brute force, the optimal solution and its complexity, with Java code.
A robot at the top-left of an m × n grid can move only right or down. How many different paths reach the bottom-right corner?
Java code + notes: https://algorung.com/dsa/dynamic-prog...
Practise it with spaced revision: https://algorung.com/app/problems/uni...
Chapters
0:00 Counting paths
0:37 The problem
1:10 Recursion
2:27 2D table
3:50 One row
5:06 Combinatorics
5:48 Complexity
6:06 Edge cases & recap
Similar problems
• Minimum Path Sum: https://algorung.com/dsa/dynamic-prog...
• Unique Paths II: https://algorung.com/dsa/dynamic-prog...
• Climbing Stairs: • Climbing Stairs | Dynamic Programming | An...
• House Robber: • House Robber | Dynamic Programming | Anima...
More Dynamic Programming problems: https://algorung.com/dsa/dynamic-prog...
All patterns: https://algorung.com/patterns
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