摘要： 题目http://acm.hdu.edu.cn/showproblem.php?pid=4453Looploop题意：有个循环链表，一个指针。然后又几个操作1: add xStarting from the arrow pointed element, add x to the number on the clockwise first k2 elements.从当前指针顺时针查k2个数，这k2个数全部加x2: reverseStarting from the arrow pointed element, reverse the first k1 clockwise elements.从当前指 阅读全文

摘要： Android开发中的drawable-(hdpi,mdpi,ldpi)和WVGA,HVGA,QVGA的区别以及联系1.drawable-(hdpi,mdpi,ldpi)的区别dpi是“dot per inch”的缩写，每英寸像素数。四种密度分类: ldpi (low), mdpi (medium), hdpi (high), and xhdpi (extra high)一般情况下的普通屏幕：ld... 阅读全文