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Author: darkprinx

Status/Day_17.md

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+
+# Question 65
+
+### **Question**
+
+>***Please write assert statements to verify that every number in the list [2,4,6,8] is even.***
+
+
+----------------------
+### Hints 
+> ***Use "assert expression" to make assertion.***
+
+----------------------
+
+**Main author's Solution: Python 2**
+```python
+li = [2,4,6,8]
+for i in li:
+ assert i%2==0
+```
+----------------
+**My Solution: Python 3**
+```python
+#to be written
+
+```
+---------------------
+
+
+
+# Question 66
+
+### **Question**
+
+>***Please write a program which accepts basic mathematic expression from console and print the evaluation result.***
+
+>***Example:
+If the following n is given as input to the program:***
+```
+35 + 3
+```
+>***Then, the output of the program should be:***
+```
+38
+```
+
+----------------------
+### Hints 
+> ***Use eval() to evaluate an expression.***
+
+----------------------
+
+**Main author's Solution: Python 2**
+```python
+expression = raw_input()
+print eval(expression)
+```
+----------------
+**My Solution: Python 3**
+```python
+#to be written
+
+```
+---------------------
+
+# Question 67
+
+### **Question**
+
+>***Please write a binary search function which searches an item in a sorted list. The function should return the index of element to be searched in the list.***
+
+----------------------
+### Hints 
+>***Use if/elif to deal with conditions.***
+
+----------------------
+
+**Main author's Solution: Python 2**
+```python
+import math
+def bin_search(li, element):
+ bottom = 0
+ top = len(li)-1
+ index = -1
+ while top>=bottom and index==-1:
+ mid = int(math.floor((top+bottom)/2.0))
+ if li[mid]==element:
+ index = mid
+ elif li[mid]>element:
+ top = mid-1
+ else:
+ bottom = mid+1
+
+ return index
+
+li=[2,5,7,9,11,17,222]
+print bin_search(li,11)
+print bin_search(li,12)
+
+```
+----------------
+**My Solution: Python 3**
+```python
+#to be written
+
+```
+---------------------
+
+
+# Question 68
+
+### **Question**
+
+>***Please generate a random float where the value is between 10 and 100 using Python math module.***
+
+----------------------
+### Hints 
+> ***Use random.random() to generate a random float in [0,1].***
+
+----------------------
+
+**Main author's Solution: Python 2**
+```python
+import random
+print random.random()*100
+
+```
+----------------
+**My Solution: Python 3**
+```python
+#to be written
+
+```
+---------------------
+
+
+
+# Question 69
+
+### **Question**
+
+>***Please generate a random float where the value is between 5 and 95 using Python math module.***
+
+
+----------------------
+### Hints 
+> ***Use random.random() to generate a random float in [0,1].***
+
+----------------------
+
+**Main author's Solution: Python 2**
+```python
+import random
+print random.random()*100-5
+```
+----------------
+**My Solution: Python 3**
+```python
+#to be written
+
+```
+---------------------
+
+

Status/Day_18.md

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+
+# Question 70
+
+### **Question**
+
+>***Please write a program to output a random even number between 0 and 10 inclusive using random module and list comprehension.***
+
+
+----------------------
+### Hints 
+> ***Use random.choice() to a random element from a list.***
+
+----------------------
+
+**Main author's Solution: Python 2**
+```python
+li = [2,4,6,8]
+import random
+print random.choice([i for i in range(11) if i%2==0])
+```
+----------------
+**My Solution: Python 3**
+```python
+#to be written
+
+```
+---------------------
+
+
+
+# Question 71
+
+### **Question**
+
+>***Please write a program to output a random number, which is divisible by 5 and 7, between 0 and 10 inclusive using random module and list comprehension.***
+
+----------------------
+### Hints 
+> ***Use random.choice() to a random element from a list.***
+
+----------------------
+
+**Main author's Solution: Python 2**
+```python
+import random
+print random.choice([i for i in range(201) if i%5==0 and i%7==0])
+```
+----------------
+**My Solution: Python 3**
+```python
+#to be written
+
+```
+---------------------
+
+# Question 72
+
+### **Question**
+
+>***Please write a program to generate a list with 5 random numbers between 100 and 200 inclusive.***
+
+----------------------
+### Hints 
+>***Use random.sample() to generate a list of random values.***
+
+----------------------
+
+**Main author's Solution: Python 2**
+```python
+
+import random
+print random.sample(range(100), 5)
+
+```
+----------------
+**My Solution: Python 3**
+```python
+#to be written
+
+```
+---------------------
+
+
+# Question 73
+
+### **Question**
+
+>***Please write a program to randomly generate a list with 5 even numbers between 100 and 200 inclusive.***
+
+----------------------
+### Hints 
+> ***Use random.sample() to generate a list of random values.***
+
+----------------------
+
+**Main author's Solution: Python 2**
+```python
+
+import random
+print random.sample([i for i in range(100,201) if i%2==0], 5)
+
+```
+----------------
+**My Solution: Python 3**
+```python
+#to be written
+
+```
+---------------------
+
+
+
+# Question 74
+
+### **Question**
+
+>***Please write a program to randomly generate a list with 5 numbers, which are divisible by 5 and 7 , between 1 and 1000 inclusive.***
+
+
+----------------------
+### Hints 
+> ***Use random.sample() to generate a list of random values.***
+
+----------------------
+
+**Main author's Solution: Python 2**
+```python
+
+import random
+print random.sample([i for i in range(1,1001) if i%5==0 and i%7==0], 5)
+```
+----------------
+**My Solution: Python 3**
+```python
+#to be written
+
+```
+---------------------
+
+