What are the odds what holdit solved F Educational Codeforces Round 137 in 2 minutes(he solved task A at 00:08, and then at 00:10 he solved task F)? And the template in his solution for this task(176710337) is different from the template he used to solve all the other tasks(for example task A — 176708548).
what makes you think he's cheating when he's literally first solve
Many people can solve problems from one account.
Could also be tester's alt.