Merge pull request #4796 from TheGamingMousse/minor-fixes

minor fixes

content/1_General/Lambda_Funcs.mdx

@@ -49,14 +49,15 @@ description: 'Defining anonymous function objects.'
 </Resources>
 
 ## Why Use Lambdas?
-Lambdas allow us to write simple and anonymous functions in place.
+Lambdas allow us to write simple and anonymous functions inline.
 This allows us to write smaller functions while keeping code local and
 organized. In addition, lambdas can capture their surrounding variables, which
 is often convenient when writing helper functions.
 
-In addition, the C++ standard library has good support for lambdas, with functions
+The C++ standard library has good support for lambdas, with functions
 like `std::sort` and `std::lower_bound` allowing you to pass custom functions
-to act as a comparator of objects.
+to act as a comparator of objects. This is often more convenient than the
+alternative of writing a dedicated function to act as a comparator.
 
 ## General Form
 Lambdas have the following form:
@@ -93,6 +94,9 @@ Then, you can call the lambda like a normal function.
 cout << square(10) << '\n';  // prints out 100
 ```
 
+As mentioned in the [custom comparator module](/silver/sorting-custom?lang=cpp)
+module, lambdas can also be used as comparators.
+
 ## Recursive Lambdas
 
 Let's say we want to write a recursive GCD function. With a lambda, the most
@@ -169,9 +173,9 @@ int main() {
 }
 ```
 
-### With `auto` as a parameter:
-The main issue with recursive lambdas is that a lambda typically cannot access
-itself. To fix this, we pass the lambda into itself.
+### With Generic Lambdas
+To remedy the issue of the lambda being unable to access itself, we pass it
+into itself.
 
 ```cpp
 int main() {

content/4_Gold/Combinatorics.problems.json

@@ -149,10 +149,10 @@
       }
     },
     {
-      "uniqueId": "ac-XorPyramid",
+      "uniqueId": "cses-2419",
       "name": "Xor Pyramid",
       "url": "https://cses.fi/problemset/task/2419",
-      "source": "AC",
+      "source": "CSES",
       "difficulty": "Normal",
       "isStarred": false,
       "tags": ["Combinatorics", "Bitwise"],

solutions/gold/ac-XorPyramid.mdx → solutions/gold/cses-2419.mdx

@@ -1,5 +1,5 @@
 ---
-id: ac-XorPyramid
+id: cses-2419
 source: AC
 title: Xor Pyramid
 author: Mihnea Brebenel