practie

Author: Sagar Paul

Python Problem Solving/13_.py

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+'''
+55555
+4444
+333
+22
+1
+'''
+
+for i in range(5,0,-1):
+    print(str(i)*i)

Python Problem Solving/13_Printing Numbers in Right Triangle Shape.py

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+'''
+1 2 3 4 5 
+1 2 3 4 
+1 2 3 
+1 2 
+1 
+'''
+
+n = int(input("type the number:  "))
+for row in range(1,n+1):
+    for col in range(1,n+2-row):
+        print(col, end=" ")
+    print()
+

Python Problem Solving/14_Numbers in Right Triangle Shape.py

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+# Program To Check Entered Number is Prime or Not
+
+n = int(input("input a number to check wheather it is prime or not:  "))
+if n>=1:
+    if n==1:
+        print("1 is NOT PRIME Number")
+    else:
+        for i in range(2,n):
+            if n%i ==0:
+                print(f"The number {n} is NOT a PRIME number")
+                break
+        else:
+            print(f"The number {n} is a PRIME number")
+else:
+    print(f"The number {n} is NOT a PRIME number")
+
+

Python Problem Solving/15_Program To Check Entered Number is Prime or Not.py

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+n = int(input("type the number upto which you wanna find PRIME number:   "))
+a = []
+if n>1:
+    for  i in range(2,n+1):
+        for j in range(2,i):
+            if i%j ==0:
+                break
+        else:
+            a.append(i)
+    print(a)
+    
+            
+
+
+
+

Python Problem Solving/16_Printing Prime Numbers in Given Interval.py

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+'''
+   *
+  * *
+ *   *
+*******
+'''
+n = int(input("Type how many rows you want:   "))
+for row in range(1,n+1):
+    for col in range(1,2*n):
+        if row ==n or col - row == n-1 or col + row == n+1 :
+            print("*", end="")
+        else:
+            print(end=" ")
+    print()
+

Python Problem Solving/17_Printing Stars in Hollow Equilateral Triangle Shape | Pyramid Pattern.py

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+'''
+   *
+  * *
+ *   *
+* * * *
+'''
+
+n = int(input("Type no. of rows: "))
+for row in range(1,n+1):
+    for col in range(1,2*n):
+        if row == n :
+            if col%2 !=0:
+                print("*",end="")
+            else:
+                print(end=" ")
+        elif row + col == n+1 or col -row == n-1 :
+            print("*",end="")
+        else:
+            print(end=" ")
+    print()

Python Problem Solving/18_Printing Stars in Hollow Equilateral Triangle Shape | Pyramid Pattern.py

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+# Perfect Numbers:  a number is called perfect number if the sum of all divisors of the number excluding that number 
+# Example:  6 = 1+ 2 + 3   ---> 6 is perfect number
+# 4 != 1 + 2   ---> 4 is not a perfect number
+
+n = int(input("Type the number: "))
+sum = 0
+for i in range(1,n):
+    if n%i ==0:
+        sum = i + sum
+    else:
+        None
+
+if sum == n:
+    print(f"the number {n} is PERFECT number")
+else:
+    print(f"the number {n} is NOT PERFECT number")
+    
+
+        

Python Problem Solving/19_Perfect Numbers | Program to Check Entered Number is Perfect or Not.py

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+#Program to Print Perfect Numbers in Given Interval
+
+upper = int(input("Type the upper number here:  "))
+lower = int(input("Type the lower number here:  "))
+
+print(f"The perfect numbers in range[{lower},{upper}] are : ")
+
+for num in range(lower, upper+1):
+    sum = 0
+    for j in range(1,num):
+        if num%j ==0:
+            sum = sum +j
+    if sum ==num :
+        print(num)
+    

Python Problem Solving/20_Program to Print Perfect Numbers in Given Interval.py

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+a = int(input("a =  "))
+b  =int(input("b =  "))
+
+temp = a
+a = b
+b = temp
+
+print("After swaping values of a and b")
+
+print(f"a = {a}")
+print(f"b = {b}")
+