1.
Check if a number is positive or negative
num =
float(input("Enter a number: "))
if num > 0:
print("The number is positive.")
elif num < 0:
print("The number is negative.")
else:
print("The number is zero.")
2.
Check if a number is positive, negative, or zero
num =
float(input("Enter a number: "))
if num > 0:
print(f"{num} is positive.")
elif num < 0:
print(f"{num} is negative.")
else:
print(f"{num} is zero.")
3.
Check if a number is positive, negative, or zero using
ternary operator
num =
float(input("Enter a number: "))
print("Positive"
if num > 0 else "Negative" if num < 0 else "Zero")
4.
Check if a number is even or odd
num =
int(input("Enter a number: "))
if num % 2 == 0:
print(f"{num} is even.")
else:
print(f"{num} is odd.")
5.
Find the largest of two numbers
num1 =
float(input("Enter first number: "))
num2 =
float(input("Enter second number: "))
if num1 > num2:
print(f"The largest number is
{num1}")
elif num2 >
num1:
print(f"The largest number is
{num2}")
else:
print("Both numbers are equal.")
6.
Determine the minimum of three numbers
num1 =
float(input("Enter the first number: "))
num2 =
float(input("Enter the second number: "))
num3 =
float(input("Enter the third number: "))
if num1 <= num2
and num1 <= num3:
print(f"The smallest number is
{num1}.")
elif num2 <=
num1 and num2 <= num3:
print(f"The smallest number is
{num2}.")
else:
print(f"The smallest number is
{num3}.")
7.
Check if a year is a leap year
year =
int(input("Enter a year: "))
if (year % 4 == 0
and year % 100 != 0) or (year % 400 == 0):
print(f"{year} is a leap year.")
else:
print(f"{year} is not a leap
year.")
8.
Grade Calculation
marks =
float(input("Enter your marks: "))
if marks >= 90:
grade = 'A'
elif marks >=
80:
grade = 'B'
elif marks >=
70:
grade = 'C'
elif marks >=
60:
grade = 'D'
else:
grade = 'F'
print(f"Your
grade is {grade}.")
9.
Check if a person is eligible to vote
age =
int(input("Enter your age: "))
if age >= 18:
print("You are eligible to
vote.")
else:
print("You are not eligible to
vote.")
10. Check if a number
is divisible by 5 and 11
num =
int(input("Enter a number: "))
if num % 5 == 0
and num % 11 == 0:
print(f"{num} is divisible by both 5
and 11.")
else:
print(f"{num} is not divisible by both
5 and 11.")
11. Check if a number
is divisible by both 3 and 9
num =
int(input("Enter a number: "))
if num % 3 == 0
and num % 9 == 0:
print(f"{num} is divisible by both 3
and 9.")
else:
print(f"{num} is not divisible by both
3 and 9.")
12. Check the type of
triangle
a =
float(input("Enter the first side: "))
b =
float(input("Enter the second side: "))
c =
float(input("Enter the third side: "))
if a == b == c:
print("The triangle is
equilateral.")
elif a == b or b
== c or a == c:
print("The triangle is
isosceles.")
else:
print("The triangle is scalene.")
13. Check if a number
is a multiple of 3 or 7
num =
int(input("Enter a number: "))
if num % 3 == 0:
print(f"{num} is a multiple of
3.")
elif num % 7 == 0:
print(f"{num} is a multiple of
7.")
else:
print(f"{num} is not a multiple of 3
or 7.")
14. Check if a person
can drive based on age
age =
int(input("Enter your age: "))
if age >= 18:
print("You are allowed to
drive.")
else:
print("You are not allowed to
drive.")
15. Check if a
triangle is valid
a =
float(input("Enter the first side: "))
b =
float(input("Enter the second side: "))
c =
float(input("Enter the third side: "))
if a + b > c
and a + c > b and b + c > a:
print("The triangle is valid.")
else:
print("The triangle is not
valid.")
16. Check if a
triangle is right-angled
a =
float(input("Enter the first side: "))
b =
float(input("Enter the second side: "))
c =
float(input("Enter the third side: "))
if a**2 + b**2 ==
c**2 or a**2 + c**2 == b**2 or b**2 + c**2 == a**2:
print("The triangle is
right-angled.")
else:
print("The triangle is not
right-angled.")
17. Check if a person
is a child, teenager, or adult
age =
int(input("Enter your age: "))
if age < 12:
print("You are a child.")
elif 12 <= age
< 18:
print("You are a teenager.")
else:
print("You are an adult.")
18. Check if a given
temperature is freezing, normal, or hot
temp =
float(input("Enter the temperature in Celsius: "))
if temp <= 0:
print("The weather is freezing.")
elif temp < 25:
print("The weather is normal.")
else:
print("The weather is hot.")
19. Check if a number
is a perfect square
import math
num =
int(input("Enter a number: "))
sqrt =
math.isqrt(num)
if sqrt * sqrt ==
num:
print(f"{num} is a perfect
square.")
else:
print(f"{num} is not a perfect
square.")
20. Check if a number
is a cube number
num =
int(input("Enter a number: "))
cube_root =
round(num ** (1/3))
if cube_root ** 3
== num:
print(f"{num} is a cube number.")
else:
print(f"{num} is not a cube
number.")
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