• Skip to primary navigation
  • Skip to content
  • Skip to primary sidebar
  • Skip to secondary sidebar

GoHired

Interview Questions asked in Google, Microsoft, Amazon

Join WeekEnd Online Batch from 4-April-2020 on How to Crack Coding Interview in Just 10 Weeks : Fees just 20,000 INR

  • Home
  • Best Java Books
  • Algorithm
  • Internship
  • Certificates
  • About Us
  • Contact Us
  • Privacy Policy
  • Array
  • Stack
  • Queue
  • LinkedList
  • DP
  • Strings
  • Tree
  • Mathametical
  • Puzzles
  • Graph

The Magic HackerEarth Nirvana solutions Hiring Challenge

February 25, 2015 by Dhaval Dave

Navi got a task at school to collect N stones. Each day he can collect only one stone. As N can be a very large number so it could take many days to complete the task,
but then he remembers that his mother gave him a magic that can double anything (i.e if he has 2 stones, the magic will make them to 4 stones). Navi can use this magic any number of time on the collected stone on a particular day and add this to the previously collected stones. Remember that he wants exactly N stones and he can’t throw any stone. If he gets more than N stones then he gets 0 marks, of course he doesn’t want 0 marks. Help him to collect exactly N stones in minimum number of days.

Input

First line of input will contain number of test cases (T). Then next T lines contains a single number N, which is number of stones Navi has to collect.

Output

For each test case, Print a single number which is the minimum number of days taken by Navi to complete the task.

Constraints

1 <= T <= 10^5
0 <= N <= 10^9

Sample Input (Plaintext Link)

2
1
3
Sample Output (Plaintext Link)
1
2
Explanation : 
When N = 1, in 1 day he can collect stone.
When N = 3, on 1st day he collect 1 stone, make it double. so now he has 2.
On day 2, he can collect one , so total now he has collected 3 stones in 2 days.
 
Code Solution : 
 
#include <stdio.h>

int main(){
int T,N,stone,remaining,day;
scanf("%d",&T);
while(T--)
{
scanf("%d",&N);
day=1;
remaining=N;
    while(1)
    {
        if(remaining==1) 
        break;
        if(remaining==0)
        {day--; break;}
        stone=1;
        while( (stone*2) <= remaining){
            stone = 2*stone;
        }
    remaining = remaining - stone;
    day++;
    }
printf("%dn",day);
}

return 0;
}

Similar Articles

Filed Under: Hacker Earth Questions, Interview Questions, problem Tagged With: Mathematical

Reader Interactions

Primary Sidebar

Join WeekEnd Online/Offline Batch from 4-April-2020 on How to Crack Coding Interview in Just 10 Weeks : Fees just 20,000 INR

Join WeekEnd Online/Offline Batch from 4-April-2020

WhatsApp us

Secondary Sidebar

Custom Search

  • How I cracked AMAZON
  • LeetCode
  • Adobe
  • Amazon
  • Facebook
  • Microsoft
  • Hacker Earth
  • CSE Interview

Top Rated Questions

Check a String is SUBSEQUENCE of another String Find Minimum length for that ( DNA Matching )

Convert Decimal to Roman numbers / Romanizer HackerEarth Code

Puzzle : 100 doors in a row Visit and Toggle the door. What state the door will be after nth pass ?

Memory Efficient LinkedList

Inorder and Preorder traversals of a Binary Tree given. Output the Postorder traversal of it.

Count Possible Decodings of a given Digit Sequence

strtok()

Templates in C++

Possible sizes of bus to carry n groups of friends

Sort Stack in place

Knight Tour Problem (Graph – Breadth First Search)

Search element in a matrix with all rows and columns in sorted order

Handle duplicates in Binary Search Tree

Python String and numbers

1014 Practice Question of New GRE – Princeton

BlueStone E-commerce Interview Experience

Add Sub Multiply very large number stored as string

Maximum sum contiguous subarray of an Array

Hackerearth : Counting Subarrays

Binary Tree in Java

Word Break Problem

N Petrol bunks or City arranged in circle. You have Fuel and distance between petrol bunks. Is it possible to find starting point so that we can travel all Petrol Bunks

VMWare SDEII Interview

Maximum difference between two elements s.t larger element appears after the smaller number

Closed Parentheses checker

Skiing on Mountains Matrix

Find the smallest window in a string containing all characters of another string

Coin Collection Dynamic Programming

Mirror of Tree

Find if a binary tree is height balanced ?

Copyright © 2026 · Genesis Framework · WordPress · Log in