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A histogram is a polygon composed of a sequence of rectangles aligned at a common base line. The rectangles have equal widths but may have different heights. For example, the figure on the left shows t

Input 8 I 2 I -1 I 1 Q 3 L D R Q 2 Output 2 3思路：就是模拟了，关键是怎么模拟了，这里用两个栈，如果左移就做边出栈，然后压到右边的栈。通过两个栈来模拟光标左右移动，其也就差不多了。 代码：#include<iostream>#include<cstdio>#include<sta...

Problem Description Before the start of contest, there are n ICPC contestants waiting in a long queue. They are labeled by 1 to n from left to right. It can be easily found that the i-th contestant’s...