Phase 6 - Category 5: Applied Problems

Introduction

This final category applies all learned concepts to solve real-world problems. You'll work with practical scenarios like student management, validation systems, and data analysis.

Key Concepts

Applied Problem Types

• Student Management: Grades, pass/fail, categorization
• Age Categorization: Minors, adults, seniors
• Password Validation: Check password strength
• Calculator Logic: Basic calculator operations
• Data Analysis: Frequency, statistics, patterns

Real-World Scenarios

• Validation Systems: Input validation, rule checking
• Classification: Categorize data based on criteria
• Statistical Analysis: Count, sum, average, frequency
• Decision Making: Complex conditional logic

Problem-Solving Approach

1. Understand Scenario: What real-world problem?
2. Identify Requirements: What conditions to check?
3. Plan Solution: Break into steps
4. Implement Logic: Code the solution
5. Test Cases: Verify with examples

Common Patterns

Validation Pattern

if condition1 and condition2 and condition3:
    print("Valid")
else:
    print("Invalid")

Categorization Pattern

if value < threshold1:
    category = "Category1"
elif value < threshold2:
    category = "Category2"
else:
    category = "Category3"

Statistical Pattern

count = 0
sum = 0
for item in data:
    if condition:
        count += 1
        sum += item
average = sum / count if count > 0 else 0