where i can get the “SOLUTION VIDEOS” for all codechef long and short challenges so that i can refer them after the contest and correct my mistakes??? 
since i am a newbie it becomes very difficult to understand it by reading other’s solution in editorial.
so plzz suggest any method or resources so that i can know my mistakes or the idea behind problem’s of any contest.
I think Codechef’s newly created YouTube channel Learn Competitive Programming with Codechef will be uploading the solutions. 
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He creates good editorials with explanations. i like the content. hope you will find it worthy.