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In problem B of today's round (987), same solution submitted with PyPy 3.6 TLEd while it worked in PyPy3.10 and Python 3.8. What could be the possible reason?
PyPy 3.6 : https://codeforces.net/contest/2031/submission/291663544
PyPy 3.10 : https://codeforces.net/contest/2031/submission/291664045
Python 3.8 : https://codeforces.net/contest/2031/submission/291664084
Your solutions are on verge of TLE with newer versions also, so version diff is enough to make it tle I think
I am still wondering why is this the case, since the solution is clearly O(n).
input() is really slow. Speeding up I/O makes your code pass with flying colors (even in PyPy 3.6)
using sys: https://codeforces.net/contest/2031/submission/291668369
using io.BytesIO: https://codeforces.net/contest/2031/submission/291667920