Decision Making and loop questions uploaded

Author: StrangeCoder1729

1_decision_making_and_loops/Question1.py

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+#Q1] Python Program to Check if a Number is Positive, Negative or 0
+
+
+ 
+
+
+# from curses.ascii import isalpha
+
+
+def detec(num):
+    if(num == 0):
+        print(num)
+     
+    elif(num > 0):
+        print("{} is a Positive number".format(num))
+    else:
+        print("{} is a negative number".format(num))
+ 
+    
+
+num = input("Enter number : ")
+
+num = int(num)
+detec(num)
+
+
+
+
+
+
+
+
+
+# if num.isalpha() == True:
+#     print("It's a word")
+# elif num.isnumeric() == True:
+#     num = int(num)
+#     detec(num)
+# elif num.isalnum() == True:
+#     print("This string contains both letters and numbers")
+ 
+

1_decision_making_and_loops/Question10.py

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+# Q10] Python Program to Check Armstrong Number
+
+
+def detec(num,res):
+    
+    if (num == res):
+        print("It is an Armstrong number")
+    else:
+        print("It is not an Armstrong number")
+
+
+def armstrong(num):
+    num1 = num
+    temp = 0
+    rev = 0
+    add = 0
+    num_count = len(str(num1))
+    while(num > 0):
+        temp = num % 10
+        # rev = rev*10 + temp 
+        add = add + pow(temp,num_count)
+        num = num // 10
+    return add
+
+
+
+num = int(input("Enter number : "))
+
+res = 0
+res = armstrong(num)
+detec(num,res)

1_decision_making_and_loops/Question11.py

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+ 
+
+def armstrong(num):
+    num1 = num
+    temp = 0
+    rev = 0
+    add = 0
+    num_count = len(str(num1))
+    while(num > 0):
+        temp = num % 10
+        # rev = rev*10 + temp 
+        add = add + pow(temp,num_count)
+        num = num // 10
+    
+    if(num1 == add):
+        return num1
+
+
+
+
+n1 = int(input("Enter n1 : "))
+n2 = int(input("Enter n2 : "))
+
+for i in range(n1,n2):
+    if(armstrong(i) == None):
+        continue
+    print(armstrong(i),end = ' ')
+ 

1_decision_making_and_loops/Question12.py

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+#Q12] Python Program to Find the Sum of Natural Numbers
+
+
+
+n1 = int(input("Enter range 1 : "))
+n2 = int(input("Enter range 2 : "))
+
+if(n1 < 0 or n2 < 0):
+    print("Cant accept negative values")
+    exit()
+if(n1 > n2):
+    temp = 0
+    temp = n1 
+    n1 = n2
+    n2 = temp
+add = 0
+for i in range(n1,n2+1):
+    add +=i
+
+print("Sum of the Natural numbers from {0} to {1} is {2}".format(n1,n2,add))

1_decision_making_and_loops/Question13/Example1.py

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+# Example 1: Program to print half pyramid using *
+"""
+*
+* *
+* * *
+* * * *
+* * * * *
+* * * * * *
+* * * * * * *
+* * * * * * * *
+* * * * * * * * * 
+ n = 10
+"""
+
+n = int(input("Enter rows : "))
+
+for i in range(0,n):
+    for j in range(0,i):
+        print("*",end=' ')
+    print()

1_decision_making_and_loops/Question13/Example2.py

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+# Example 2: Program to print half pyramid a using numbers
+
+"""
+1
+1 2
+1 2 3
+1 2 3 4
+1 2 3 4 5 
+n = 6
+"""
+n = int(input("Enter number of rows : "))
+
+for i in range(0,n):
+    for j in range(0,i):
+        print(j+1,end =' ')
+    print()

1_decision_making_and_loops/Question13/Example3.py

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+# Example 3: Program to print half pyramid using alphabets
+"""
+n = 5
+
+A       
+B B     
+C C C   
+D D D D 
+"""
+n = int(input("Enter number of rows : "))
+
+alpha = 64
+for i in range(0,n):
+    for j in range(0,i):
+        alph = chr(alpha)
+        print(alph,end =' ')
+    alpha +=1
+    print()

1_decision_making_and_loops/Question13/Example4.py

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+# Example 4: Inverted half pyramid using *
+
+"""
+n = 5
+* * * * * 
+* * * *
+* * *
+* *
+*
+"""
+n = int(input("Enter number of rows : "))
+
+for i in range(0,n):
+    for j in range(0,n-i):
+        print("*",end=' ')
+    print()

1_decision_making_and_loops/Question13/Example5.py

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+# Example 5: Inverted half pyramid using numbers
+"""
+n = 5
+1 2 3 4 5 
+1 2 3 4
+1 2 3
+1 2
+1
+"""
+n = int(input("Enter number of rows : "))
+
+for i in range(0,n):
+    for j in range(0,n-i):
+        print(j+1,end=' ')
+    print()

1_decision_making_and_loops/Question13/Example6.py

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+# Example 6: Program to print full pyramid using *
+"""
+n = 5
+    *
+   * *
+  * * *
+ * * * *
+"""
+n = int(input("Enter number of rows : "))
+ 
+for i in range(0,n):
+    for j in range(i,n):
+        print(" ",end ='')
+    for k in range(0,i):
+        print("* ",end='')
+    print()
+    

1_decision_making_and_loops/Question14/Example1.py

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+# Example 1: Access both key and value using items()
+
+ 
+n = int(input("Enter range : "))
+d = dict((input("Enter key values pairs: : ").split() for _ in range(0,n)))
+
+for key,value in d.items():
+    print(key,value)
+
+ 

1_decision_making_and_loops/Question14/Example2.py

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+# Example 2: Access both key and value without using items()
+
+
+n = int(input("Enter range : "))
+
+d2 = dict((input("Enter key and value : ").split() for _ in range(0,n)))
+print(d2)
+
+
+for key in d2:
+    print(key,d2[key])

1_decision_making_and_loops/Question14/Example4.py

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+# Example 4: Return keys or values explicitly
+
+n = int(input("Enter range : "))
+
+d4 = dict((input("Enter key and value : ")).split() for _ in range(0,n))
+
+for key in d4.keys():
+    print(key)
+
+for value in d4.values():
+    print(value)

1_decision_making_and_loops/Question14/tempCodeRunnerFile.py

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+k

1_decision_making_and_loops/Question15.py

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+# Q 15] Python Program to Reverse a Number
+
+
+def reverse(num):
+    temp = 0
+    rev = 0
+    while(num > 0):
+        temp = num % 10
+        rev = rev* 10 + temp
+        num = num // 10
+    return rev
+
+num = int(input("Enter number : "))
+
+print("Original number : {}".format(num))
+res = 0
+res = reverse(num)
+print("Reverse number : {}".format(res))

1_decision_making_and_loops/Question16.py

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+# Q 16] Python Program to Compute the Power of a Number
+
+num = float(input("Enter number : "))
+
+power = float(input("Enter power : "))
+
+res = pow(num,power)
+
+print("Answer : {}".format(round(res,2)))

1_decision_making_and_loops/Question2.py

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+# Q2] Python Program to Check if a Number is Odd or Even
+
+num = int(input("Enter number : "))
+
+if num % 2 == 0:
+    print("{} is an even number".format(num))
+elif num % 2 == 1:
+    print("{} is an odd number".format(num))

1_decision_making_and_loops/Question3.py

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+#Q4] Python Program to Check Leap Year
+
+yr = int(input("Enter year : "))
+
+if (yr % 4 == 0):
+    if(yr % 100 == 0):
+        if(yr % 400 == 0):
+            print("It is a leap year")
+        else:
+            print("It is not a leap year")
+    else:
+        print("It is a leap year")
+else:
+    print("It is not a leap year")

1_decision_making_and_loops/Question4.py

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+#Q4] Python Program to Find the Largest Among Three Numbers
+
+
+def maximum(lst):
+    maxi = max(lst)
+    return maxi
+lst = []
+
+n = int(input("Enter n : "))
+
+for i in range(0,n):
+    user_input = int(input("Enter number {}: ".format(i+1)))
+    lst.append(user_input)
+
+res = maximum(lst)
+print("Maximum number is {}".format(res))

1_decision_making_and_loops/Question5.py

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+#Q5] Python Program to Check Prime Number
+
+def prime(num):
+    
+    isprime = True
+    for i in range(2,num):
+        if(num % i == 0):
+            isprime = False
+            break
+    
+    if (isprime == True):
+        print("{} is a Prime number".format(num))
+    else:
+        print("{} is not a Prime number".format(num))
+
+
+num = int(input("Enter number : "))
+
+prime(num)

1_decision_making_and_loops/Question6.py

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+#Q4] Python Program to Print all Prime Numbers in an Interval
+
+def prime(n2):
+    isprime = True
+
+    for i in range(2,n2):
+        if(n2 % i == 0):
+            isprime = False
+            break
+    if (isprime == True):
+        return n2
+
+
+n1 = int(input("Enter n1 : "))
+n2 = int(input("Enter n2 : "))
+
+for i in range(n1,n2):
+    if(prime(i) == None):
+        continue
+    print(prime(i),end=' ')