I'm a Java programmer. I have been practicing questions from the archived problems page (EASY) from top.
I feel that I got TLE for almost 30% of the questions, EVEN THOUGH I implemented a solution that has the same asymptotic bound as the suggested solutions (i.e. the editorial)
If you checked the successful submissions on the right, almost all of them are written in C/ C++, with usually less than 5 written in Java. for some questions, I guess solutions written in other languages (say Python) are basically impossible to pass the time limit, even if they are perfectly optimized.
I'm not new to this community, and I understand there is always disadvantages programming in non-C languages. This happens too for other coding platforms, say codeforces or topcoder. but I feel that this problem is much much more severe here.