{"trustable":false,"sections":[{"title":"","value":{"format":"HTML","content":"\n \u003cdiv class\u003d\"ptx\" lang\u003d\"en-US\"\u003e\n 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 the histogram that consists of rectangles with the heights 2, 1, 4, 5, 1, 3, 3, measured in units where 1 is the width of the rectangles: \n \u003cbr\u003e\n \u003ccenter\u003e\n \u003cimg SRC\u003d\"http://poj.org/images/2559_1.jpg\"\u003e\n \u003c/center\u003e \n \u003cbr\u003eUsually, histograms are used to represent discrete distributions, e.g., the frequencies of characters in texts. Note that the order of the rectangles, i.e., their heights, is important. Calculate the area of the largest rectangle in a histogram that is aligned at the common base line, too. The figure on the right shows the largest aligned rectangle for the depicted histogram. \n \u003c/div\u003e"}},{"title":"Input","value":{"format":"HTML","content":"\n \u003cdiv class\u003d\"ptx\" lang\u003d\"en-US\"\u003e\n The input contains several test cases. Each test case describes a histogram and starts with an integer \n \u003ci\u003en\u003c/i\u003e, denoting the number of rectangles it is composed of. You may assume that \n \u003ci\u003e1\u0026lt;\u003dn\u0026lt;\u003d100000\u003c/i\u003e. Then follow \n \u003ci\u003en\u003c/i\u003e integers \n \u003ci\u003eh\u003csub\u003e1\u003c/sub\u003e,...,h\u003csub\u003en\u003c/sub\u003e\u003c/i\u003e, where \n \u003ci\u003e0\u0026lt;\u003dh\u003csub\u003ei\u003c/sub\u003e\u0026lt;\u003d1000000000\u003c/i\u003e. These numbers denote the heights of the rectangles of the histogram in left-to-right order. The width of each rectangle is \n \u003ci\u003e1\u003c/i\u003e. A zero follows the input for the last test case.\n \u003c/div\u003e"}},{"title":"Output","value":{"format":"HTML","content":"\n \u003cdiv class\u003d\"ptx\" lang\u003d\"en-US\"\u003e\n For each test case output on a single line the area of the largest rectangle in the specified histogram. Remember that this rectangle must be aligned at the common base line. \n \u003c/div\u003e"}},{"title":"Sample Input","value":{"format":"HTML","content":"\u003cpre class\u003d\"sio\"\u003e7 2 1 4 5 1 3 3\n4 1000 1000 1000 1000\n0\n\u003c/pre\u003e"}},{"title":"Sample Output","value":{"format":"HTML","content":"\u003cpre class\u003d\"sio\"\u003e8\n4000\n\u003c/pre\u003e"}},{"title":"Hint","value":{"format":"HTML","content":"\n \u003cdiv class\u003d\"ptx\" lang\u003d\"en-US\"\u003e\n Huge input, scanf is recommended.\n \u003c/div\u003e"}}]}