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CamilaFinal

camila.vazquez1 2 years ago
parent
commit
052575c296
1 changed files with 33 additions and 1 deletions
  1. 33
    1
      sorting.py

+ 33
- 1
sorting.py View File

@@ -10,8 +10,40 @@ from random import randint
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 import time
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 def mergeSort(lista):
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+        #Camila Vazquez Rodriguez 
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 	#definan el algoritmo de ordenamiento mergesort
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-	return lista
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+        if len(lista) > 1:
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+                mid = len(lista)//2
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+                L = lista[:mid]
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+                R = lista[mid:]
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+
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+                mergeSort(L)
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+                mergeSort(R)
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+
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+                i = 0
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+                j = 0
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+                k = 0
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+
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+        while i < len(L) and j < len(R):
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+                if L[i] <= R[j]:
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+                        lista[k] = L[i]
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+                        i += 1
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+                else:
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+                        lista[k] = R[j]
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+                        j += 1
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+                k += 1
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+ 
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+        while i < len(L):
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+                lista[k] = L[i]
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+                i += 1
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+                k += 1
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+ 
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+        while j < len(R):
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+                lista[k] = R[j]
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+                j += 1
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+                k += 1
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+                
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+        return lista
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 def heapSort(lista):
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 	#definan el algoritmo de ordenamiento heapsort