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wrong answer on codeforces compiler but in my pc gives correct answer.
By imtinanjibon, history, 5 years ago, In English

I am trying to solve https://codeforces.net/contest/478/problem/B this problem. but in test case 4 it give me erron in codeforces compiler but in my pc it gives correct answer. how can i fix this? 81477732 .

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5 years ago, # |
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Maybe is because of the way your computer rounds doubles. I tried to put a + 0.5 to round it up and it passed the test 4 (but still got TLE). There can be another errors, since factorials with n = 1e9 can cause overflow

https://codeforces.net/contest/478/submission/81478816

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