Python Logical Operators with Static and Dynamic Input

Learn Python logical operators like and, or, and not with real-life examples. Each example is shown with both static values and dynamic input using input().

Python के लॉजिकल ऑपरेटर and, or, और not को स्टेटिक और यूज़र इनपुट (dynamic input) के साथ सीखें।

Example 1: Student Grade Checker

marks = 85

if marks >= 80 and marks <= 100:
    print("Grade A")
elif marks >= 60 and marks < 80:
    print("Grade B")
elif marks >= 40 and marks < 60:
    print("Grade C")
else:
    print("Fail")

Output:

Grade A

Checks student grade using static marks with 'and' condition.

Example 1: Student Grade Checker

marks = int(input("Enter your marks: "))

if marks >= 80 and marks <= 100:
    print("Grade A")
elif marks >= 60 and marks < 80:
    print("Grade B")
elif marks >= 40 and marks < 60:
    print("Grade C")
else:
    print("Fail")

Output:

Depends on user input. Try entering 85 → Output: Grade A

Same grade checker but takes marks from user using input().

Example 2: Max Among 3 Numbers

a = 45
b = 78
c = 66

if a > b and a > c:
    print("a is the largest")
elif b > c:
    print("b is the largest")
else:
    print("c is the largest")

Output:

b is the largest

Compares 3 static numbers using 'and' condition.

Example 2: Max Among 3 Numbers

a = int(input("Enter first number: "))
b = int(input("Enter second number: "))
c = int(input("Enter third number: "))

if a > b and a > c:
    print("a is the largest")
elif b > c:
    print("b is the largest")
else:
    print("c is the largest")

Output:

Try input a=10, b=30, c=20 → Output: b is the largest

Finds largest of 3 numbers from user input.

Example 3: Leap Year Checker

year = 2024

if (year % 4 == 0 and year % 100 != 0) or (year % 400 == 0):
    print("Leap Year")
else:
    print("Not a Leap Year")

Output:

Leap Year

Checks if a static year is a leap year using logical operators.

Example 3: Leap Year Checker

year = int(input("Enter a year: "))

if (year % 4 == 0 and year % 100 != 0) or (year % 400 == 0):
    print("Leap Year")
else:
    print("Not a Leap Year")

Output:

Try input: 2024 → Output: Leap Year

Checks leap year with user input using and/or operators.