Conditionals and Loops
If/Elif/Else
score = 75
if score >= 90:
grade = "A"
elif score >= 80:
grade = "B"
elif score >= 70:
grade = "C"
else:
grade = "F"
print(f"Grade: {grade}")For Loop
for i in range(5):
print(i) # 0, 1, 2, 3, 4
fruits = ["apple", "banana", "cherry"]
for fruit in fruits:
print(fruit)While Loop
count = 0
while count < 5:
print(count)
count += 1Example
# Grade Calculator
scores = [95, 67, 82, 45, 73, 88, 52]
for score in scores:
if score >= 90:
grade = "A"
elif score >= 80:
grade = "B"
elif score >= 70:
grade = "C"
elif score >= 60:
grade = "D"
else:
grade = "F"
print(f"Score {score} = Grade {grade}")
# Count passing and failing
passing = sum(1 for s in scores if s >= 50)
failing = len(scores) - passing
print(f"
Passing: {passing}, Failing: {failing}")Exercises
Exercise 1. Sum Numbers 1 to 5
Medium
Use a for loop with range(1, 6) to add up the numbers 1 to 5 and print the total.
The printed total must be exactly 15.
The printed total must be exactly 15.
total = 0
# your loop here
print(total)Expected Output
15