Codeforces Round #743 (Div. 2) ,Problem C
Difference between en2 and en3, changed 21 character(s)
Yesterday 's contest had some very good problems , unfortunately, it became unrated.↵

Problem Link : https://codeforces.com/contest/1573/problem/C↵

The problem is based on standard topological sort Prerequisite problem .↵

If the cycle was found in the graph I printed -1 as the answer.↵

else↵
I found the topical sort of all the chapters , using cycle detection + DFS + queue.↵

Where I am stuck ??
After finding the topological ordering of chapters (stored in a queue a ->b->c->d.... )how do I count the number of times I will have to read the book/number of passes required  ???↵

Please help !!!↵


History

 
 
 
 
Revisions
 
 
  Rev. Lang. By When Δ Comment
en3 English ayush29azad 2021-09-19 12:15:20 21
en2 English ayush29azad 2021-09-19 12:14:23 2 Tiny change: 'unrated.\nProblem ' -> 'unrated.\n\nProblem '
en1 English ayush29azad 2021-09-19 12:13:53 652 Initial revision (published)