Summing the N series

JavaScript
1

This code doesn’t pass all the tests. Can you help please ?

function summingSeries(n) {
    return n**2 % (10**9 + 7);
}

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2

Which tests are failing?

3

They are hidden tests. Mathematically everything is correct but the code still doesn’t pass some tests Maybe the problem is in how javascript handle big numbers MAYBE

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4

The math looks ok to me, so I’d guess a big number problem too.

5

What’s the problem here ? In Python the same code works very well

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6

How to solve the issue of big numbers in javascript ?

7

Have you looked at the MDN page on BigInt?

8

You could try reducing n mod 10**9 + 7 before squaring it.

9

I’ve tried both methods
I used BigInt but It doesn’t work maybe because the compiler doesn’t support it.
I also tried to do the calculation before squaring n as you see in the code below

function summingSeries(n) {
    var m = 10**9 + 7;
    return ((n%m) * (n%m)) % m;
}
10

Well, I solved this problem using Python. If the topic of big numbers has no importance in Javascript, I will go to something else

11

Big numbers are important in every language. I have no idea what the test cases are though, so I can only blindly guess at what might be happening.

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