• 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

Print all nodes that are at distance k from a leaf node

Implement a generic binary search algorithm for Integer Double String etc

FizzBuzz Solution C C++

CodeChef’ RRCOPY

Longest Increasing Subsequence

VMWare SDEII Interview

Binary Tree Isomorphic to each other

Client Server C program

Maximum sum contiguous subarray of an Array

Sort an array according to the order defined by another array

How strtok() Works

‘N’ Story Building, with 1,2,3 steps how many ways can a person reach top of building.

robot standing at first cell of an M*N matrix. It can move only in two directions, right and down. In how many ways, it can reach to the last cell i.e. (M, N) Code it

Print Power Set of a Set

Password Predictor

C++ OOPs Part2

Serialise Deserialise N-ary Tree

Maximum size of square sub matrix with all 1’s in a binary matrix

Add Sub Multiply very large number stored as string

Implement LRU Cache

Printing intermediate Integers between one element & next element of array

Diagonal Traversal of Binary Tree

Python List

Urban Ladder Written Test.

Knight Tour Problem (Graph – Breadth First Search)

Given a sorted array and a number x, find the pair in array whose sum is closest to x

Linked List V/S Binary Search Tree

Advanced SQL Injection

Trie Dictionary

Number of Islands BFS/DFS

Copyright © 2026 · Genesis Framework · WordPress · Log in