leetcode

xiaoxiao2021-02-27  316

Unique path解题,核心思想是动态规划,还有就是减少空间复杂度问题。 class Solution { int uniquePaths(int m, int n) { if (m > n) return uniquePaths(n, m); vector<int> cur(m, 1); for (int j = 1; j < n; j++) for (int i = 1; i < m; i++) cur[i] += cur[i - 1]; return cur[m - 1]; } };
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