Ok, so I've been trying competitive programming for about 6 months now. I can still never solve DIV 2A Problems on Codeforces and Calkwalk Problems on Codechef. I am not dumb by means of IQ or anything like that, but I don't know why I suck so much. Is there anything that I can do to improve. I know the key is to solve lots of problems, but I can't even solve few problems.