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# Advanced Programming Techniques: Integrating Conditional Statements and Loops

Combining Conditional Execution and Iteration

Conditional execution and iteration often work together to create powerful and flexible programs.

### How They Work Together

By combining these concepts, programmers can create complex decision-making structures. For example, a program can use loops to iterate over data while using conditional statements to make decisions at each iteration.

#### Optimizing Code

Using conditional execution and iteration together can optimize code, making it faster and more efficient. This combination is crucial for implementing complex algorithms like search and sort algorithms.

### Summary of Key Points

• Conditional execution and iteration often work together.
• This combination creates complex decision-making structures.
• Optimizing code involves using both concepts effectively.

In this case study, we'll understand how combining conditional execution and iteration (for loop) creates complex decision-making structures in programs. By doing so, we'll see how these combinations optimize code efficiency and enable sophisticated algorithms.

Problem: Create a grade calculator that processes student scores and assigns grades based on predefined criteria.

Solution:

1. Use a for loop to iterate through student scores.
2. Use conditional statements to assign grades based on score ranges.

``````# Function to calculate grades based on scores
for score in scores:
if score >= 90:
elif score >= 80:
elif score >= 70:
elif score >= 60:
else:

# Main program to input scores, calculate grades, and display results
def main():
scores = [85, 72, 90, 66, 78, 95, 59]

print("Scores:", scores)