When you execute a recursive function in Python on a large input ( > 10^4), you might encounter a “maximum recursion depth exceeded error”. This is a common error when executing algorithms such as DFS, factorial, etc. on large inputs. This is also common in competitive programming on multiple platforms when you are trying to run a recursive algorithm on various test cases.
例如：
解决方案：Using the setrecursionlimit() method, we can increase the recursion limit and the program can be executed without errors even on large inputs.
import sys
sys.setrecursionlimit(10**6)
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