Did u consider the edge cases like when r-l<=2,also changing at l and r
This is my ac code :
http://codeforces.com/contest/935/submission/36069836
see if u understand it.
If u dont,tell me.I’ll explain when i get time
Did u consider the edge cases like when r-l<=2,also changing at l and r
This is my ac code :
http://codeforces.com/contest/935/submission/36069836
see if u understand it.
If u dont,tell me.I’ll explain when i get time