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Hi I wrote top-down dp for this problem but my code gets TLE for test case 6 I must change it to bottom-up or there is a trick to don't get TLE?
My code ==> https://mirror.codeforces.com/contest/366/submission/56265597
Problem Link ==> https://mirror.codeforces.com/contest/366/problem/C
Any type of help is appreciated. Thanks in advance.
Auto comment: topic has been updated by BanazadehAria (previous revision, new revision, compare).
You don't need this
map<int,map<int,int> >, I think this is your problem. Take a look to my code and if you have any question tell me :)My code
Btw, I used map in this and got TLE, that why i changed it.
Thank you :(
if( use[pos][dif+100000] ) return DP[pos][dif+100000]; use[pos][dif+100000] = true;
Why did you do this i think it will work if its negative but it will change if the number is positive no?
Yes, but i'm used to code this way XD
I think it's necessary here because maybe the difference gets negative.
diff < 0
so you used map to store a[diff] -> TLE
he used aray a[diff + 1e5] -> AC
Ok thanks