2. Python programming using simple statements and expressions (exchange the values of two variables, circulate the values of n variables, distance between two points).

 

2. Python programming using simple statements and expressions (exchange the values of two variables, circulate the values of n variables, distance between two points).

# swapping of two variables

 

x = 10

y = 50

 

# Swapping of two variables

# using arithmetic operations

x = x + y  

y = x - y 

x = x - y

 

print("Value of x:", x)

print("Value of y:", y)

 

 

Program to circulate the values of n variables

from collections import deque

lst=[1,2,3,4,5]

d=deque(lst)

print d

d.rotate(2)

print d

Output:[3,4,5,1,2]

 

(OR)

list=[10,20,30,40,50]

n=2 #Shift 2 location

list[n:]+list[:n]

 

Output: [30,40,50,10,20]

 

3. Distance between two points

import math

p1 = [4, 0]

p2 = [6, 6]

distance = math.sqrt( ((p1[0]-p2[0])**2)+((p1[1]-p2[1])**2) )

print(distance)