Add new example for Reviews

Author: Awrsha

03 C C++ Python R and Mojo review/03-2 Python Review/01 Pointers/01.py

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+# In Python, variables are references to objects, so no explicit pointers are required
+
+x = 10
+ptr = x  # 'ptr' references the same value as 'x'
+
+# Python doesn't expose memory addresses directly, but we can use id() to get the memory address.
+print(f"Address of x: {id(ptr)}")  # Prints the memory address (not exactly like C)
+print(f"Value of x: {ptr}")  # Prints the value of x

03 C C++ Python R and Mojo review/03-3 R Language Review/01 Pointers/01.R

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+x <- 10
+ptr <- x  # In R, variables are references
+
+# R doesn't have a direct way to show memory addresses, but you can use the "address" of an object 
+# using the "pryr" package for low-level memory inspection
+library(pryr)
+cat("Address of x: ", address(ptr), "\n")  # Address function from pryr package
+cat("Value of x: ", ptr, "\n")

03 C C++ Python R and Mojo review/03-4 Mojo Review/01 Pointers/01.mojo

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+x = 10
+ptr = &x  # Address-of operator, like in C
+
+print(f"Address of x: {ptr}")  # Prints the memory address
+print(f"Value of x: {x}")      # Dereferencing 'ptr' would give us the value