GFG problems

gfg/Array rotation.py

@@ -0,0 +1,17 @@
+def rotatearray(arr,n,d):
+    temp=[]
+    i=0
+    while(i< d):
+        temp.append(arr[i])
+        i=i+1
+    i=0
+    while(d<n):
+        arr[i]=arr[d]
+        i=i+1
+        d=d+1
+    arr[:]= arr[:i]+ temp
+    return arr
+
+arr=[1,2,3,4,5,6,7]
+print("Array after left rotation is: ",end='')
+print(rotatearray(arr,len(arr),2))

gfg/Monotonicity of array.py

@@ -0,0 +1,7 @@
+def IsMonotonic(a):
+    return(all(a[i]<=a[i+1] for i in range(len(a)-1))or
+           all(a[i]>=a[i+1] for i in range(len(a)-1)))
+
+
+A = [6, 5, 4, 4]
+print(IsMonotonic(A))

gfg/hole problem.py

@@ -0,0 +1,8 @@
+s = input()
+hole=0
+for i in s:
+    if (i in ["A","D","O","P","R"]):
+        hole+= 1
+    elif(i in ["B"]):
+        hole= hole+2
+print(hole)

gfg/run length encoding.py

@@ -0,0 +1,25 @@
+def encode(message):
+    count = 0
+    chatacter = ''
+    previous_char = message[0]
+    result = ''
+    length = len(message) 
+
+    i = 0
+    while (i != length ):
+        chatacter = message[i]
+
+        if previous_char == chatacter :
+            count = count + 1
+        else :
+            result = result + str(count) + previous_char
+            count = 1
+        #print(str(i) + str(chatacter) + str(previous_char) + "          " + str(result))
+        previous_char = chatacter
+        i = i + 1
+
+    return result + str(count) + str(previous_char)
+
+m=int(input("Enter the string"))
+encoded_message=encode(m)
+print(encoded_message)

gfg/sum of array.py

@@ -0,0 +1,5 @@
+sum=0
+arr={1,2,3,4}
+for i in arr:
+    sum=sum+i
+print(sum)