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Sum of n Numbers

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Description

Here, the program is written to find the sum of ‘n’ numbers. The numbers are taken as input. Then using a ‘for’ loop the numbers are added.

For example, if the number of elements is 2 and the given inputs are: 1, 1.3.

Then the sum will be: 1+1.3=2.3

Algorithm

INPUT: The number of elements and the numbers to be added

OUTPUT: Sum of the given numbers

PROCESS:

Step 1: [Taking the input]

               Read n [number of elements]

               For i=0 to n-1 repeat

                              Read arr[i]

               [End of ‘for’ loop]

Step 2: [Adding the numbers]

               Set sum<-0

            For i=0 to n-1 repeat

                              Set sum<-sum+arr[i]

               [End of ‘for’ loop]

               Print "The sum of the numbers: sum"

Step 3: Stop.

Code

TIME COMPLEXITY:

for(i=0;i<n;i++)-------------------------------------------O(n)

               {

                              sum=sum+arr[i];

               }

The time complexity of this program is O(n) where ‘n’ is the number of elements to be added.

SPACE COMPLEXITY:

The space complexity of this program is O(n) where ‘n’ is the number of elements to be added.