CodeNation Interview Experience

Top codenation interview questions

S.NoInterview QuestionNumber of times candidates experienced this question in interviews
1Check length of a String is Equal to the Number Appended at its Last7771
2Count all subsequences having product less than K5678
3Backspace String Compare4522
4Maximum Sum Increasing Subsequence3726
5Painting Fence Algorithm3151
6Maximum path sum in a triangle2945
7Sequences of given length where every element is more than or equal to twice of previous2821
8Largest rectangular sub-matrix whose sum is 02715
9LCS (Longest Common Subsequence) of three strings2606
10Find maximum length Snake sequence2512
11Number of palindromic paths in a matrix2348
12A Space Optimized DP solution for 0-1 Knapsack Problem2304
13Count ways to reach the nth stair using step 1, 2 or 32218
14Difference Array | Range update query in O(1)2094
15Longest Increasing Subsequence2015
16K maximum sums of overlapping contiguous sub-arrays1986
17Matrix Chain Multiplication1873
18The Painter’s Partition Problem1870
19Number of siblings of a given Node in n-ary Tree1835
20Minimum insertions to form a palindrome with permutations allowed1778
21Red-Black Tree Introduction1647
22Longest Bitonic Subsequence1614
23Segment Tree1612
24Constant time range add operation on an array1583
25Range Queries for Longest Correct Bracket Subsequence1462
26Priority Queue1460
27Number of elements less than or equal to a given number in a given subarray1377
28Maximum weight transformation of a given string1295
29Maximum Subarray Sum Excluding Certain Elements1266
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