Paytm Platform Engineer Interview Questions and Answers

Q1. Desing chatbot using 3rd party providers
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Q1. Interview had basic questions of Java and some basic problems to code.
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Q1. This round was with the manager of team he gave one technical problem to solve and code in Java that was it.
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Q2. Problem was about comparing two string s of having different software versions.
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Q1. Salary discussion
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Dp problem
- submatrix with maximum sum

Q1. Zig zag traversal of tree All permutation and combination of numbers in a given array
Ans. 
Implement zig zag traversal of a tree and generate all permutations of numbers in a given array.
• For zig zag traversal of a tree, use a queue or stack to keep track of nodes at each level and alternate the direction of traversal.

• To generate all permutations of numbers in an array, use backtracking or recursion to explore all possible combinations.

• Consider using a HashSet to avoid duplicate permutations.
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