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authorShinya Sato <shinnya.sato@gmail.com>2022-05-02 09:49:01 +0900
committerShinya Sato <shinnya.sato@gmail.com>2022-05-02 09:49:01 +0900
commit8c7809d024e85d0a8acfb794a4db41b0e4bc13e6 (patch)
tree25ac81bad7be415d7cf75457275f7161d79f9f10 /comparison/Python/dummy.py
parent429543c748aaf81b2a4207318eb5a05259469b21 (diff)
downloadinpla-8c7809d024e85d0a8acfb794a4db41b0e4bc13e6.tar.gz
inpla-8c7809d024e85d0a8acfb794a4db41b0e4bc13e6.zip
v0.8.2-1
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+# Python program for implementation of MergeSort
+# https://www.geeksforgeeks.org/merge-sort/
+import random
+
+def mergeSort(arr):
+ if len(arr) > 1:
+
+ # Finding the mid of the array
+ mid = len(arr)//2
+
+ # Dividing the array elements
+ L = arr[:mid]
+
+ # into 2 halves
+ R = arr[mid:]
+
+ # Sorting the first half
+ mergeSort(L)
+
+ # Sorting the second half
+ mergeSort(R)
+
+ i = j = k = 0
+
+ # Copy data to temp arrays L[] and R[]
+ while i < len(L) and j < len(R):
+ if L[i] < R[j]:
+ arr[k] = L[i]
+ i += 1
+ else:
+ arr[k] = R[j]
+ j += 1
+ k += 1
+
+ # Checking if any element was left
+ while i < len(L):
+ arr[k] = L[i]
+ i += 1
+ k += 1
+
+ while j < len(R):
+ arr[k] = R[j]
+ j += 1
+ k += 1
+
+
+def mkRandList ( n ):
+ a=[]
+ for i in range(1,n+1):
+ a.insert(0, random.randint(0,10000))
+ return a
+
+
+def validation(alist):
+ for i in range(len(alist)-1):
+ if (alist[i] > alist[i+1]):
+ return False
+
+ return True
+
+
+a = mkRandList(10)
+mergeSort(a)
+print(validation(a))