KPrem cheated in contest 1988 with help from darkDranzer. KPrem actually cheated. He have three skipped contests and was unable to code, so it seems like he asked someone to code for him in the contest. Here are his submissions in the contest: sub1, sub2, sub3. These templates are the same as those of another user who didn't participate in that contest. My theory is that darkDranzer must have helped KPrem, because just after the contest, the template and coding style of KPrem returned to normal. darkDranzer's template : link.