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1 vote
2 answers
134 views

I want reduce the time complexity for this ladder problem to find the minimum ladders required

I was trying to attempt below given challenge. I tried multiple ways to solve the problem but none of them were good enough to pass the time limit. Please advise if you have any idea to improve on ...
Akshay Gupta's user avatar
2 votes
2 answers
225 views

Knapsack performance issue

I'm solving a knapsack problem here. It works, but gives time limit exceeds on a certain test case. Problem statement There are N items, numbered 1,2,…,N. For each i (1≤i≤N), Item i has a weight of ...
Youssef13's user avatar
  • 167
5 votes
3 answers
3k views

Maximum path sum in a triangle with prime number check

I was given this algorithm task: You will have a triangle input below and you need to find the maximum sum of the numbers according to given rules below; You will start from the top and move ...
vicosoft's user avatar
2 votes
0 answers
3k views

Hackerrank: Max Score

Problem statement Consider an n-element sequence of integers, A = {a0, a0, ..., an-1}. We want to perform \$n\$ operations on \$A\$, where each operation is defined by the following sequence of ...
Jianmin Chen's user avatar
  • 2,456
5 votes
1 answer
1k views

Hackerrank: Lucky Number Eight (Dynamic Programming)

Problem statement Given an n-digit positive integer, count and print the number of subsequences formed by concatenating the given number's digits that are divisible by 8. As the result can be large, ...
Jianmin Chen's user avatar
  • 2,456