srijon_32's blog

Whats the issue with these builtin function in c++?
By srijon_32, history, 21 month(s) ago, In English

Here are my two submission for problem : 1158A - The Party and Sweets

  1. using accumulate function: 300047140

  2. using loop: 300047827

1st one giving wrong answer. Previously, the same thing happened with sqrt, and then I used binary search to find sqrt. So after this WA, I used a loop to get the sum, and now it's giving the correct answer. So where has this accumulate function gone wrong?

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21 month(s) ago, hide # |
 
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The initial value of the accumulate function must be a 64-bit data type; otherwise, an overflow will occur.

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21 month(s) ago, hide # |
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You have to use 0LL in accumulate function

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