day1 Pushed File

Author: SinghLokesh02

Array.py

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+arr = [1,2,3,4,5,5,6,7,8]
+
+# print(arr) This will print the whole array
+
+# print(arr[0]) This will print the first element of the array
+
+# Printting the array using for in loop
+# for i in arr:
+#     print(i)
+
+
+# Take using defined input of array from the user
+# arr = []
+# for ind in range(0,10):
+#     x = int(input("Enter the Elements of the array : "))
+#     arr.append(x)
+    
+# print(arr)
+
+
+# print the array using for-in loop
+
+# for i in range(0,len(arr)):
+#     print("The ",i," index element is : ",arr[i])
+
+
+

Array_methods.py

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+# Array Methods in Python
+
+arr = [1,2,3,4,5,6,7,8,9,10,10]
+
+# Print the array
+print(arr)
+
+# Print Array Element using Index
+print(arr[0])
+
+
+# Append a element in the list
+arr.append(100)
+print(arr)
+
+
+# Clear the array
+arr.clear()
+print(arr)
+
+
+# Print the count of any Element in the array
+x = arr.count(10)
+print("The count of the element in arr is : ",x)
+
+
+# Return the index of a given element
+print(arr.index(10))
+
+
+# Remove one Element from the last of the array
+print(arr)
+arr.pop()
+print(arr)
+
+
+# remove the first item with specified value
+print(arr)
+arr.remove(10)
+print(arr)
+
+
+# Reverse the array
+print(arr)
+arr.reverse()
+print(arr)
+
+
+# Sort The array 
+print(arr)
+arr.sort()
+print(arr)
+
+
+# Print the length of the array
+print("The length of the array is : ",len(arr))
+
+
+# Add element at the specified position
+print(arr)
+arr.insert(2,17)#Insert 17 at Index 2
+print(arr)
+
+
+# Copy the array
+arr2 = arr.copy()
+print(arr2)
+

Introduction.py

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+# Introduction to python
+
+'''
+What is Python?
+Python is a popular programming language. It was created by Guido van Rossum, and released in 1991.
+
+It is used for:
+
+web development (server-side),
+software development,
+mathematics,
+system scripting.
+
+What can Python do?
+Python can be used on a server to create web applications.
+Python can be used alongside software to create workflows.
+Python can connect to database systems. It can also read and modify files.
+Python can be used to handle big data and perform complex mathematics.
+Python can be used for rapid prototyping, or for production-ready software development.
+
+Why Python?
+Python works on different platforms (Windows, Mac, Linux, Raspberry Pi, etc).
+Python has a simple syntax similar to the English language.
+Python has syntax that allows developers to write programs with fewer lines than some other programming languages.
+Python runs on an interpreter system, meaning that code can be executed as soon as it is written. This means that prototyping can be very quick.
+Python can be treated in a procedural way, an object-oriented way or a functional way.
+Good to know
+
+The most recent major version of Python is Python 3, which we shall be using in this tutorial. However, Python 2, although not being updated with anything other than security updates, is still quite popular.
+In this tutorial Python will be written in a text editor. It is possible to write Python in an Integrated Development Environment, such as Thonny, Pycharm, Netbeans or Eclipse which are particularly useful when managing larger collections of Python files.
+Python Syntax compared to other programming languages
+Python was designed for readability, and has some similarities to the English language with influence from mathematics.
+Python uses new lines to complete a command, as opposed to other programming languages which often use semicolons or parentheses.
+Python relies on indentation, using whitespace, to define scope; such as the scope of loops, functions and classes. Other programming languages often use curly-brackets for this purpose.
+'''
+
+print("Hello This is python first file")

Loops.py

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+# Python programming language provides the following types of loops to handle looping requirements. Python provides three ways for executing the loops. While all the ways provide similar basic functionality, they differ in their syntax and condition-checking time.
+
+# 1 -> For Loop
+
+print("\n\n This is Example of While For In Python")
+for i in range(0,100):
+    print(i)
+    
+for i in range(0,100,3):#print every 3rd element from 0-99
+    print(i)
+
+# loops in string
+
+str = "Lokesh Singh"
+# Example of for-in Loop in python
+for character in str:
+    print(character)
+    
+    
+# 2 -> While Loop
+print("\n\n This is Example of While loop In Python")
+i = 0
+while(i<=10):
+    print(i)
+    i = i+1 #Python doesn't support i++

Revise.py

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+# print("This is the assignment file")
+
+# Question - 1 Make a program to add the sum of array Elements
+def sum(arr):
+  add = 0
+  for i in range(0,len(arr)):
+    add += arr[i]
+
+  print("The sum of array element is : ",add)
+
+arr = [1,2,3,4,5]
+sum(arr)
+
+
+# Question - 2 Make a program to find the largest number in an array
+def maximum(array):
+    print("The maximum element in the array is : ",max(arr))
+  
+n = int(input("Enter the size of arr : "))
+arr = []
+for i in range(0,n):
+  x = int(input())
+  arr.append(x)
+
+print(arr)
+maximum(arr)
+
+
+# Question - 3 Make a program to find the smallest number in an array
+def minimum(array):
+    print("The minimum element in the array is : ",min(arr))
+  
+n = int(input("Enter the size of arr : "))
+arr = []
+for i in range(0,n):
+  x = int(input())
+  arr.append(x)
+
+print(arr)
+minimum(arr)
+
+
+# Question - 4 Make a program that prints second largest element from the array
+def second_Max(arr):
+  maxi = max(arr)
+  second_max = min(arr)
+  for i in range(0,len(arr)):
+    if(maxi<arr[i]):
+      second_max = maxi
+      maxi = arr[i]
+    else:
+      if(arr[i]>second_max and arr[i]!=maxi):
+        second_max = arr[i];
+
+  print("Second maximum elements of the array is : ",second_max)
+    
+  
+
+n = int(input("Enter the size of arr : "))
+arr = []
+for i in range(0,n):
+  x = int(input())
+  arr.append(x)
+
+second_Max(arr)
+
+
+# Question - 5 Make a program that take username as input and that prints the length of the name
+def print_len(name):
+  print("The length of the given string is : ",len(name))
+name = input("Enter your name : ")
+print_len(name)
+
+
+# Question - 6 Make a program that take array as input and prints every alternate elements
+def print_alternate(array):
+    print("The alternate elements of the array are : \n")
+    for i in range(0,len(array),2):
+      print(array[i])
+  
+n = int(input("Enter the size of arr : "))
+arr = []
+for i in range(0,n):
+  x = int(input())
+  arr.append(x)
+print_alternate(arr)
+

function.py

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+# Now we are Going to see the function in Python
+
+# Function 1 print "hello"
+def print_hello():
+    print("Hello Everyone")
+    
+print_hello()
+
+
+# Function - 2 Check a number is Even or Odd
+def check(num):
+    if(num%2==0):
+        print("The Number is Even Number")
+    else:
+        print("The given Number is Odd Number")
+    
+x = int(input("Enter any Number : "))
+check(x)
+
+
+
+# Function-3 Check Prime
+
+def check_prime(num):
+    count = 0
+    for i in range(1,num+1):
+        if(num%i==0):
+            count += 1
+    if(count==2):
+        print("The given Number is Prime Number")
+    else:
+        print("The given Number is Not Prime Number")
+    
+x = int(input("Enter any Number : "))
+check_prime(x)
+
+
+
+# Function - 4 Print the largest Name Among the array of names
+def largest_name(names):
+    max = names[0]
+    for i in range(1,len(names)):
+        if(len(names[i])>len(max)):
+            max = names[i]
+    return max
+
+names = ["Rajesh","Ramesh","Raj","Rajesh Kumar"]
+print("The largest Name is : ",largest_name(names))
+
+
+# Function - 5 print the table of a given Number
+def table(num):
+    for i in range(1,11):
+        print(num,"*",i,"=",num*i)
+    
+num = int(input("Enter Any Number for Print their Table : "))
+table(num)
+
+
+
+# Function - 6  Print the second largest element from the array
+
+# Method - 1
+def second_largest(arr):
+    max = arr[0]
+    for i in range(1,len(arr)):
+        if(arr[i]>max):
+            max = arr[i]
+    arr.remove(max)
+    max = arr[0]
+    for i in range(1,len(arr)):
+        if(arr[i]>max):
+            max = arr[i]
+    return max
+
+# Method -2
+def second_largest(arr):
+    maxi = max(arr)
+    ans = 0
+    for i in range(0,len(arr)):
+        if(arr[i]>maxi):
+            ans = maxi
+            maxi = arr[i]
+        elif(arr[i]>ans and arr[i]!=maxi):
+            ans = arr[i]
+    return ans
+
+
+arr =[1,2,3,4,5,6,7,8,9,10,11,23,456,787,78,87,6]
+print(second_largest(arr))