I tried to Solve it using generating all permutation of the given number using Recursion, but i found a problem in coding it.

My code using Recursion https://ideone.com/9CPZY2, but it didn't give correct answer.

Maybe you didn't give the contest all your effort because it was Div3 and you are Specialist.

Focus in the next round.

Can Problem E solved using Recursion "Backtrack" ?

Great Job _AymanSalah and all Assuit Community. all upper Egypt is proud of your community

Hope a good contest ^_^ and try to Hacking <3

A contest for memory, First time to solve problem in the last minute

After Contest and after testing ^_^

Already ladders helped me to solve a lot of problems on basics and submit solutions more quickly, after a solved about 200 problems without know it's categories, helped me in contest more and to think and write code for easy ones more quickly. Now i can solve first problem in Contest during the first 10 Min( Before: take more than 20 Min to solve first problem).

Problems A, B on Codeforces became more harder than previous need some techniques, so ladder must updated to be fit on Codeforces Rate.

but really Thank you ahmed_aly for ladder, it helped me more and more in the last summer.

I hope it's not goodbye for 2017, but goodbye for current rate and Welcome for new Rate and new Div

why it get Idleness limit exceeded and not Wrong Answer
and what that mean ?

Auto comment: topic has been updated by Buu-Zaid (previous revision, new revision, compare).

Make the class Public