solve : unique path

Author: SamTheKorean

unique-paths/samthekorean.py

@@ -0,0 +1,5 @@
+# TC : O(n)
+# SC : O(1)
+class Solution:
+    def uniquePaths(self, m: int, n: int) -> int:
+        return math.comb(m + n - 2, n - 1)