dunjen_master's blog

By dunjen_master, history, 5 weeks ago, In English,

Her is the link to my submission on which i got WA at pretest 11 https://codeforces.com/contest/1139/submission/51643042

I just uncommented the line ans=(ans+mod)%mod and it got accpeted although in the previous line i had done ans=(? -ans +mod)%mod.

Someone please explain me why did my code failed at test 11 ?

 
 
 
 

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5 weeks ago, # |
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In your last loop you should add ans%=(MOD) ; as it will overflow;