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Educational Codeforces Round 89 (Rated for Div. 2) C - Palindromic Paths(回文路径,思惟)
时间 2020-08-04
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题目连接 题意 给你一个n*m的01矩阵,如今咱们要从起点(1,1)到(n,m)而且每一步只能向下或者向右走,如今要求他能走到终点的路径必须所有是回文(好比01010),问最少改动多少个元素,使得知足条件ios 思路: 例:矩阵为 1.首先,要是路径为回文,那么我如今走的第一步,和最后走的一步确定要相等(废话)。c++ 2.首先从起点咱们第一步能走到(1,2)和(2,1)这俩个坐标,那么他们走到的
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Educational Codeforces Round 89 (Rated for Div. 2)
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