Solved

countClumps  challenge

Posted on 2016-08-14
10
235 Views
Last Modified: 2016-08-17
Hi,

I am working on below challenge

http://codingbat.com/prob/p193817


Say that a "clump" in an array is a series of 2 or more adjacent elements of the same value. Return the number of clumps in the given array.

countClumps([1, 2, 2, 3, 4, 4]) → 2
countClumps([1, 1, 2, 1, 1]) → 2
countClumps([1, 1, 1, 1, 1]) → 1

i am not clear on the description of the challenge. please advise
0
Comment
Question by:gudii9
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 4
  • 4
10 Comments
 
LVL 38

Expert Comment

by:Gerwin Jansen, EE MVE
ID: 41756126
gudii9 - where are you from, what is your native language?
0
 
LVL 38

Accepted Solution

by:
Gerwin Jansen, EE MVE earned 500 total points
ID: 41756128
You have to count blocks of the same numbers.

1 1 1 2 3 3 4 5 contains 2 blocks (numbers 1 and numbers 3)
0
 
LVL 7

Author Comment

by:gudii9
ID: 41756451
countClumps([1, 2, 2, 3, 4, 4]) → 2//this is clear as it has one 2's clump and one other 4's clump
countClumps([1, 1, 2, 1, 1]) → 2//this is clear
countClumps([1, 1, 1, 1, 1]) → 1//how it is 1?
is it because it has one clump of 5 1's in it?
0
Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

 
LVL 38

Expert Comment

by:Gerwin Jansen, EE MVE
ID: 41756540
Yes, one clump of 1's
0
 
LVL 7

Author Comment

by:gudii9
ID: 41758651
public int countClumps(int[] nums) {
  int counter=0;
  boolean flag=false;
  for(int i=0;i<nums.length-1;i++){
    if(nums[i]==nums[i+1]&&!flag){
      flag=true;
      counter++;
    }
    else if(nums[i]!=nums[i+1]){
      flag=false;
    }
  }
  return counter;
}

Open in new window


above passes all tests.
basically checking i with i+1  and making flag to true and repeat in if loop then in else check for inequality and make flag false there
1
 
LVL 7

Author Comment

by:gudii9
ID: 41759619
just thinking any other possible simple solutions/approaches for this? or any improvements, modifications, optimization to my code above?
0
 
LVL 38

Expert Comment

by:Gerwin Jansen, EE MVE
ID: 41759689
Can't think of an easier way, if you want a different way then you have to write different pseudo code first. But it works and passes the tests so you've learned some here right?
0
 
LVL 7

Author Comment

by:gudii9
ID: 41760276
yes definitely
0

Featured Post

Free Tool: Path Explorer

An intuitive utility to help find the CSS path to UI elements on a webpage. These paths are used frequently in a variety of front-end development and QA automation tasks.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
servlet and mdb, jms error 1 82
wild fly 8 startup error 2 82
MySQL programmer starter 25 65
Oracle programming for starter 14 76
Whether you've completed a degree in computer sciences or you're a self-taught programmer, writing your first lines of code in the real world is always a challenge. Here are some of the most common pitfalls for new programmers.
In this post we will learn how to make Android Gesture Tutorial and give different functionality whenever a user Touch or Scroll android screen.
The viewer will be introduced to the technique of using vectors in C++. The video will cover how to define a vector, store values in the vector and retrieve data from the values stored in the vector.
Suggested Courses

751 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question