Calculate the of Sum

#1

Can you tell the place where my code is getting wrong

#2

Hi @samyakjain1050_65748654e19948da,

if(x>i){
     a[i]+=a[n-x+i];
}
if(x<=i || x==0){
     a[i]+=a[i-x];
}

In the above conditions, you need to update the array simultaneously. So, create a new array and update like this
b[i] = a[i] + a[i-x]; and,
b[i] = a[i] + a[n-x+i];

#3

Still the code is not working after adding new array

#4

@samyakjain1050_65748654e19948da,

You also need to equate array a equal to b, and also 10^9+7 is wrong it should be 1000000007.

10^9 means 10 xor 9

I have made the corrections,

#5

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