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 Last7177
2Count all subsequences having product less than K5145
3Backspace String Compare4037
4Maximum Sum Increasing Subsequence3207
5Painting Fence Algorithm2800
6Maximum path sum in a triangle2409
7Sequences of given length where every element is more than or equal to twice of previous2373
8Largest rectangular sub-matrix whose sum is 02330
9LCS (Longest Common Subsequence) of three strings2205
10Find maximum length Snake sequence2121
11Number of palindromic paths in a matrix1980
12A Space Optimized DP solution for 0-1 Knapsack Problem1931
13Count ways to reach the nth stair using step 1, 2 or 31798
14Difference Array | Range update query in O(1)1763
15Longest Increasing Subsequence1675
16K maximum sums of overlapping contiguous sub-arrays1661
17Matrix Chain Multiplication1534
18Number of siblings of a given Node in n-ary Tree1497
19The Painter’s Partition Problem1488
20Minimum insertions to form a palindrome with permutations allowed1331
21Red-Black Tree Introduction1296
22Longest Bitonic Subsequence1266
23Priority Queue1190
24Constant time range add operation on an array1176
25Segment Tree1172
26Range Queries for Longest Correct Bracket Subsequence1105
27Number of elements less than or equal to a given number in a given subarray1060
28Maximum weight transformation of a given string1023
29Maximum Subarray Sum Excluding Certain Elements958
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