Photo by Carlos Irineu da Costa on Unsplash

The Problem Statement:

Sample I/O:

String="aabccbb", k=2
Replace the two 'c' with 'b' to have a longest repeating substring "bbbbb".
Input: String="abbcb", k=1
Output: 4
Explanation: Replace the 'c' with…

Sample I/O

The Pattern:

[1, 7, 3, 4]
[84, 12, 28…

The Problem and example I/O:


The Premise

  • A guy goes along corridor N times which have N bulbs
  • Every time he goes along the corridor he toggles the switch of certain bulbs based on certain condition
  • We have to determine the state of the last bulb i.e. Nth bulb.

The Conditions

  • The bulbs have serial numbers starting from 1 to N i.e. …

The Constraints

  • 1 ≤ N ≤ 10⁵

Photo by Yeshi Kangrang on Unsplash

Abrar Shariar

Techie | Engineer | Coder

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