【AMC】AMC答案已出，自己认刑吧

AMC 10A：http://www.artofproblemsolving.com/Forum/resources.php?c=182&cid=43&year=2013&sid=820bfea62b62f3395e207bfdb3bdc615
AMC 12A: http://www.artofproblemsolving.com/Forum/resources.php?c=182&cid=44&year=2013&sid=ebbb930b0004d18e6688e6a82d02bdcd
认清了方向，楼主对于这次暴毙/惨死也算是有了深刻体会，吃一堑长一智
进AIME的同学们，祝贺你们
没进AIME的同学们，AMC 10B/12B还是一条好汉！