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+#!/usr/bin/env python
+# coding: utf-8
+
+# # Assignment
+# 
+
+# Solution to problem 1
+
+# importing modules math and random, and creating two empty lists for y and y_hat. 
+
+# In[1]:
+
+
+import math
+import random
+n=10
+y=[]
+y_hat=[]
+O=0
+
+
+# Assigning random numbers to the lists
+
+# In[2]:
+
+
+for i in range(0,n,1):
+    x_hat=random.random()
+    y_hat.append(x_hat)
+    x=random.randint(0,1)
+    y.append(x)
+
+
+# In[3]:
+
+
+y
+
+
+# In[4]:
+
+
+
+y_hat
+
+
+# Evaluating the expression
+
+# In[5]:
+
+
+
+for i in range(0,n,1):
+    O=O-1/n*(y[i]*math.log(y_hat[i],2) + (1-y[i])*math.log(1-y_hat[i],2))
+    
+
+
+# Final Answer
+
+# In[6]:
+
+
+O
+
+
+# Solution to Problem 2
+
+# In[7]:
+
+
+class Myclass:
+    def __init__(self,listofno,target):
+        self.listofno=listofno
+        self.target=target
+    def process(self):
+        key=1
+        d={}
+        for i in range(0,len(self.listofno),1):
+            for j in range(0,len(self.listofno),1):
+                if((self.listofno[i]+self.listofno[j])==self.target):
+                    d[key]=[i,j]
+                    key=key+1
+        print(d);             
+
+
+# Output
+
+# In[8]:
+
+
+p1=Myclass([10,20,30,40,50,60,70],50)       
+p1.process()
+
+
+# In[ ]:
+
+
+
+