What is the problem?

general
1

I am not new to codechef, but today is the first time I encounter this and it destroyed my contest.
Why adding:
ios_base::sync_with_stdio(0);
to the code, make it wrong answer on some testcases and TLE on some others???
(My second submisson must be accepted for problem “Gold Mining” in [June Lunchtime 2020 Division 1]) (which was after 23 minutes after I solved the first problem and 120 minutes after the beginning). But with this problem, I finished the contest without solving anything other than the first, because I am submitting all the time with: ios_base::sync_with_stdio(0);
What is the problem???

2

Not 100% sure but i guess scanf with ios_base::sync_with_stdio(0) slows the program.
cin cout should be used with that.

3

ig

4

Either use only the stdio functions or the iostream functions you can’t use both because we have made them out of sync by using stdio(0).

5

Ok. Yes, I used scanf and cout (this for precision) with sync. Very sad :disappointed_relieved: :disappointed_relieved: