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How can i find the smallest number in array while getting the element number


How can i find the smallest number in array while getting the element number

By : user2185525
Date : November 22 2020, 04:01 AM
With these it helps I have a problem that keep bugging me out. Finding the smallest number in array is easy but here is my problem; when you find the smallest number in array , the smallest number becomes a[0] th element of array. What i want is , i want to find the smallest number and also which element it is. Such as this , You could leverage IntStream.range in such case:
code :
IntStream.range(0, arr.length)
         .mapToObj(index -> new SimpleEntry<>(index, arr[index]))
         .min(Comparator.comparingInt(SimpleEntry::getValue));
int[] arr = new int[]{5,20 ,1 ,12};
IntStream.range(0, arr.length)
         .mapToObj(index -> new SimpleEntry<>(index, arr[index]))
         .min(Comparator.comparingInt(SimpleEntry::getValue))
         .ifPresent(s -> System.out.println(s.getValue()+ 
               " is the smallest number and it's index" + s.getKey() + "of array"));


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How do I find the smallest number in an array that's immediately larger than a given number in another array?

How do I find the smallest number in an array that's immediately larger than a given number in another array?


By : Sakis Korelidis
Date : March 29 2020, 07:55 AM
it fixes the issue Let's say I have vector A and I have item 4 of vector B. The syntax to get the minimum item greater than item 4 of vector B is...
code :
min(A[A > B[4])
sapply( B, function(x) min(A[A>x]) )
As <- sort(A)
sapply( B, function(x) As[As>x][1] )
Find the smallest and second smallest number in an array of 8 numbers with only 9 comparisons

Find the smallest and second smallest number in an array of 8 numbers with only 9 comparisons


By : user2402655
Date : March 29 2020, 07:55 AM
should help you out A way to think about the solution is this is like a tennis knock-off competition series. Suppose each number corresponds to a player. Pair off the numbers and let each game correspond to a comparison between numbers within a pair:
Games: (a1,a2), (a3, a4), (a5, a6), (a7, a8)
code :
               a12345678
              /         \
             /           \
            /             \
           /               \
        a1234            a5678
       /     \           /    \
      /       \         /      \
   a12       a34      a56      a78
  /   \     /   \    /   \    /  \
a1     a2  a3   a4 a5    a6  a7   a8
                   a3
                   |
              /----|----\
             /           \
            /             \
           /               \
          a3 >==========> a5678
       /     \           /    \
      /       \         /      \
   a12 <====< a3      a56      a78
  /   \     /   \    /   \    /  \
a1     a2  a3 ->a4 a5    a6  a7   a8
Find smallest number K , if exists, such that product of its digits is N. Eg:when N = 6, smallest number is k=16(1*6=6)

Find smallest number K , if exists, such that product of its digits is N. Eg:when N = 6, smallest number is k=16(1*6=6)


By : user3782818
Date : March 29 2020, 07:55 AM
wish help you to fix your issue I have made this program using array concept in java. I am getting Exception as ArrayIndexOutOfBound while trying to generate product. , Problem lies in this line
code :
String t=x[d++]+""+x[p--];
How do I find the Index of the smallest number in an array in python if I have multiple smallest numbers and want both i

How do I find the Index of the smallest number in an array in python if I have multiple smallest numbers and want both i


By : Todd Preston
Date : March 29 2020, 07:55 AM
I hope this helps you . You may enumerate array elements and extract their indexes if the condition holds:
code :
min_value = min(distance)
[i for i,n in enumerate(distance) if n==min_value]
#[0,2]
Why is this code to find the minimum number in an array assuming the first element is smallest?

Why is this code to find the minimum number in an array assuming the first element is smallest?


By : ccullen
Date : March 29 2020, 07:55 AM
help you fix your problem , The problem in your code is b is local variable to the this for loop
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