hi everyone i'm kind of new here and i have some questions would u mind answering it: 1-there was some question that i was sure that my code is correct but it was wrong for example at test 14. how can i figure out what was my problem? 2-what should i read now ? i know greedy , binary search , complete search,and a little dynamic 3-what is hack? should i lock my answer after submitting it? 4-where can i see the answers of problems of contest?
thanks for paying attention parsa
For question 1:You can click your submssion id(for example 21656580)to view the tests.You can only do that in Problemset.But sometimes,there are unexpecting bugs in your programs,so I suggest you to do that only if you are sure that you can't figure out the bugs. However,because of the version of the compiler,the output-s on your own computer may be different from those on the Codeforces computers. For the books,well,I can't help you. For Q 3: Hack means to find out the bugs in others' "Pretest Pass" programs and get extra points during a contest.You had better not to lock your answer if you are not confident in your program or you don't want to hack. For Q 4:you can see them in the blogs having "editorial" or "toturial" in their names. (Forgive my poor English please)
3)hackerrank,emaxx and solve more problems!