# Example of working with strings in Python
str1 = "Hello"
str2 = "World"
# Concatenation
result = str1 + " " + str2
print(result) # Output: Hello World
# String formatting
name = "Alice"
greeting = f"Hello, {name}!"
print(greeting) # Output: Hello, Alice!
# Accessing characters in a string
first_char = str1[0]
print(first_char) # Output: H
# Length of a string
length = len(str1)
print(length) # Output: 5
How do I avoid rehashing overhead with std::set in multithreaded code?
How do I find elements with custom comparators with std::set for embedded targets?
How do I erase elements while iterating with std::set for embedded targets?
How do I provide stable iteration order with std::unordered_map for large datasets?
How do I reserve capacity ahead of time with std::unordered_map for large datasets?
How do I erase elements while iterating with std::unordered_map in multithreaded code?
How do I provide stable iteration order with std::map for embedded targets?
How do I provide stable iteration order with std::map in multithreaded code?
How do I avoid rehashing overhead with std::map in performance-sensitive code?
How do I merge two containers efficiently with std::map for embedded targets?