{"trustable":false,"sections":[{"title":"","value":{"format":"HTML","content":"\n \u003cdiv class\u003d\"ptx\" lang\u003d\"en-US\"\u003e\n 有一个平面区域,上面有一些点,每个点对应一定的权值,每次移动只能从当前位置向上下左右四个方向中,权值小于当前位置权值的点移动,一次性最多可以移动多远(相邻位置移动一次为1)\n \u003c/div\u003e"}},{"title":"Input","value":{"format":"HTML","content":"\n \u003cdiv class\u003d\"ptx\" lang\u003d\"en-US\"\u003e\n 输入的第一行表示区域的行数R和列数C(1 \u0026lt;\u003d R,C \u0026lt;\u003d 100)。下面是R行,每行有C个整数,代表权值,0\u0026lt;\u003dh\u0026lt;\u003d10000。\n \u003c/div\u003e"}},{"title":"Output","value":{"format":"HTML","content":"\n \u003cdiv class\u003d\"ptx\" lang\u003d\"en-US\"\u003e\n 输出最长的移动距离\n \u003c/div\u003e"}},{"title":"Sample Input","value":{"format":"HTML","content":"\u003cpre class\u003d\"sio\"\u003e2 2\n2 1\n3 4\n\u003c/pre\u003e"}},{"title":"Sample Output","value":{"format":"HTML","content":"\u003cpre class\u003d\"sio\"\u003e4\u003c/pre\u003e"}}]}