Added Codes to Repo

RohanSahana · web-flow · commit ec90d915addf · 2020-10-10T10:52:29.000+05:30
diff --git a/Demonstration of Basic Euclidean Algorithm.py b/Demonstration of Basic Euclidean Algorithm.py
@@ -0,0 +1,18 @@
+# To demonstrate Basic Euclidean Algorithm 
+
+def gcd(a, b):  
+    if a == 0 : 
+        return b  
+    return gcd(b%a, a) 
+  
+a = 55
+b = 20
+print("gcd(", a , "," , b, ") = ", gcd(a, b)) 
+  
+c = 94
+d = 6
+print("gcd(", c , "," , d, ") = ", gcd(a, b)) 
+  
+e = 34
+f = 69
+print("gcd(", e , "," , f, ") = ", gcd(a, b)) 
diff --git a/Max no. in Array.py b/Max no. in Array.py
@@ -0,0 +1,13 @@
+#Program to find maximum in arr[] of size n  
+
+def largest(arr,n): 
+    max = arr[0] 
+    for i in range(1, n): 
+        if arr[i] > max: 
+            max = arr[i] 
+    return max
+  
+arr = [2, 24, 54, 121, 2201, 662, 313, 535] 
+n = len(arr) 
+ans = largest(arr,n) 
+print ("Largest in given array is",ans) 
diff --git a/Sorting Codes.py b/Sorting Codes.py
@@ -0,0 +1,152 @@
+# Selection Sort 
+import sys 
+a = [ 170, 40, 72, 90, 802, 24, 2, 66, 32]
+string = "SUBSCRIBETOSEEDITSOLUTIONS"
+  
+for i in range(len(a)): 
+    min_idx = i 
+    for j in range(i+1, len(a)): 
+        if a[min_idx] > a[j]: 
+            min_idx = j 
+              
+    a[i], a[min_idx] = a[min_idx], a[i] 
+
+print ("Selection Sorted array: ") 
+for i in range(len(a)): 
+    print("%d \t" %a[i], sep=' ', end='', flush=True) 
+    
+# Bubble Sort 
+def bubbleSort(a): 
+    n = len(a) 
+    for i in range(n-1): 
+        for j in range(0, n-i-1): 
+            if a[j] > a[j+1] : 
+                a[j], a[j+1] = a[j+1], a[j] 
+  
+
+# Insertion Sort 
+def insertionSort(a): 
+    for i in range(1, len(a)): 
+        key = a[i] 
+        j = i-1
+        while j >=0 and key < a[j] : 
+            a[j+1] = a[j] 
+            j -= 1
+        a[j+1] = key 
+    
+
+# Heap Sort 
+def heapify(a, n, i): 
+    largest = i 
+    l = 2 * i + 1    
+    r = 2 * i + 2   
+    if l < n and a[i] < a[l]: 
+        largest = l 
+
+    if r < n and a[largest] < a[r]: 
+        largest = r 
+  
+    if largest != i: 
+        a[i],a[largest] = a[largest],a[i]
+        heapify(a, n, largest) 
+  
+def heapSort(a): 
+    n = len(a) 
+    for i in range(n // 2 - 1, -1, -1): 
+        heapify(a, n, i) 
+  
+    for i in range(n-1, 0, -1): 
+        a[i], a[0] = a[0], a[i]  
+        heapify(a, i, 0) 
+
+# Radix Sort 
+def countingSort(a, exp1): 
+    n = len(a) 
+    output = [0] * (n) 
+    count = [0] * (10) 
+    for i in range(0, n): 
+        index = (a[i]/exp1) 
+        count[int((index)%10)] += 1
+
+    for i in range(1,10): 
+        count[i] += count[i-1] 
+    i = n-1
+    while i>=0: 
+        index = (a[i]/exp1) 
+        output[ count[ int((index)%10) ] - 1] = a[i] 
+        count[int((index)%10)] -= 1
+        i -= 1
+    i = 0
+    for i in range(0,len(a)): 
+        a[i] = output[i] 
+
+def radixSort(a):
+    max1 = max(a)
+    exp = 1
+    while max1/exp > 0:
+        countingSort(a,exp)
+        exp *= 10
+
+# Shell Sort 
+def shellSort(a): 
+    n = len(a) 
+    gap = n/2
+    while int(gap) > 0: 
+        for i in range(int(gap),int(n)): 
+            temp = a[i] 
+            j = int(i) 
+            while  int(j) >= int(gap) and a[int(j)-int(gap)] >temp: 
+                a[j] = a[j-gap] 
+                j -= gap 
+            a[j] = temp 
+        gap /= 2
+
+# Counting sort 
+def countSort(string): 
+    output = [0 for i in range(256)] 
+    count = [0 for i in range(256)] 
+    ans = ["" for _ in string] 
+    for i in string: 
+        count[ord(i)] += 1
+  
+    for i in range(256): 
+        count[i] += count[i-1] 
+  
+    for i in range(len(string)): 
+        output[count[ord(string[i])]-1] = string[i] 
+        count[ord(string[i])] -= 1
+  
+    for i in range(len(string)): 
+        ans[i] = output[i] 
+    return ans  
+  
+    
+bubbleSort(a) 
+print ("\nBubble Sorted array:") 
+for i in range(len(a)): 
+    print ("%d \t" %a[i], sep=' ', end='', flush=True)
+
+insertionSort(a) 
+print ("\nInsertion Sorted array:") 
+for i in range(len(a)): 
+    print ("%d\t" %a[i], sep=' ', end='', flush=True) 
+    
+heapSort(a) 
+n = len(a) 
+print ("\nHeap Sorted array:") 
+for i in range(n): 
+    print ("%d\t" %a[i], sep=' ', end='', flush=True)   
+    
+radixSort(a)
+print ("\nRadix Sorted array:")
+for i in range(len(a)):
+    print("%d\t" %a[i], sep=' ', end='', flush=True)
+    
+shellSort(a) 
+print ("\nShell Sorted array:") 
+for i in range(n): 
+    print("%d\t" %a[i], sep=' ', end='', flush=True)
+
+b = countSort(string) 
+print("\nSorted character array is %s" %(" ".join(b)))
+
