数组旋转 Python 程序
在本文中,我们将了解如下所示问题陈述的解决方案。
问题陈述 − 给定一个文本和一个模式,我们需要打印文本中模式及其排列(或同义词)的所有出现。
现在让我们在下面的实现中观察解决方案 −
示例
# maximum value MAX = 300 # compare def compare(arr1, arr2): for i in range(MAX): if arr1[i] != arr2[i]: return False return True # search def search(pat, txt): M = len(pat) N = len(txt) # countP pattern account # countTW text window count countP = [0]*MAX countTW = [0]*MAX for i in range(M): (countP[ord(pat[i]) ]) += 1 (countTW[ord(txt[i]) ]) += 1 # Traversal for i in range(M, N): # Compare current window and patten counts if compare(countP, countTW): print("Found at Index", (i-M)) # Add charcter to window (countTW[ ord(txt[i]) ]) += 1 # remove charcter from window (countTW[ ord(txt[i-M]) ]) -= 1 # Check for the last window if compare(countP, countTW): print("It is Found at Index : ", N-M) # main txt = "TUTORIALSPOINT" pat = "TOR" search(pat, txt)
输出
Found at Index 2
所有变量均在局部作用域中声明,并且在上图中可以看到它们的引用。
结论
在本文中,我们了解了如何编写同义词子字符串搜索的 Python 程序。
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