Question

The following code finds out the average of five numbers using arrays. There is some error in it. Can you fix the bug?




=5
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#include
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int main()
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{
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int arr[] = {10, 20, 30, 40, 50};
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int size=5;
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int sum = 0;
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for(int i = 0; i < size; i++){
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sum = sum + arr[0];
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}
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std::cout< 11
return 0;
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}

Answer 1

Answer: sum=sum+arr[i];

Explanation:

i will start from 0;

and it will go from 0 to arr.length, thus adding all elements one by one in sum;

Answer 2

Answer:

#include<iostream>

int main()

{

   int arr[] = {10, 20, 30, 40, 50};

   int size=5;

   int sum = 0;

   for(int i = 0; i < size; i++){  

     sum=sum+arr[i];

   }

   std::cout<<sum/size;

   return 0;

}

Explanation:

in a loop array index should be specified by loop index variable.