project structure reorganized & some files renamed

Author: muffafa

Python/0001-two-sum/two-sum.md renamed to Python/0001-two-sum/1-answer.md

@@ -35,7 +35,7 @@ You can return the answer in any order.
 
 ## 🔐 Solutions
 
-| ID  |   METHOD    | LINK                               |
-| :-- | :---------: | :--------------------------------- |
-| 1   | Brute Force | [two-sum.md](two-sum.md)           |
-| 2   | Hash Table  | [two-sum-hash.md](two-sum-hash.md) |
+| ID  |           METHOD           |
+| :-- | :------------------------: |
+| 1   | [Brute Force](1-answer.md) |
+| 2   | [Hash Table](2-answer.md)  |

Python/0001-two-sum/two-sum-hash.md renamed to Python/0001-two-sum/2-answer.md

@@ -33,6 +33,6 @@ An **Anagram** is a word or phrase formed by rearranging the letters of a differ
 ## 🔐 Solutions
 <!-- Solutions of problem and their links. -->
 
-| ID  |         METHOD         | LINK                     |
-| :-- | :--------------------: | :----------------------- |
-| 1   | Counts the Frequencies | [group-anagram](group-anagram.md) |
+| ID  |                METHOD                 |
+| :-- | :-----------------------------------: |
+| 1   | [Counts the Frequencies](1-answer.md) |

Python/0001-two-sum/q-two-sum.md renamed to Python/0001-two-sum/question.md

@@ -18,6 +18,6 @@ Given an integer array `nums`, return `true` if any value appears **at least twi
 ## 🔐 Solutions
 <!-- Solutions of problem and their links. -->
 
-| ID  |  METHOD  | LINK                                           |
-| :-- | :------: | :--------------------------------------------- |
-| 1   | Hash Set | [contains-duplicate.md](contains-duplicate.md) |
+| ID  |         METHOD          |
+| :-- | :---------------------: |
+| 1   | [Hash Set](1-answer.md) |

Python/0049-group-anagram/group-anagram.md renamed to Python/0049-group-anagram/1-answer.md

@@ -32,6 +32,6 @@ Can you solve the problem in `O(1)` extra space complexity? (The output array *
 ## 🔐 Solutions
 <!-- Solutions of problem and their links. -->
 
-| ID  | METHOD  | LINK                                                               |
-| :-- | :-----: | :----------------------------------------------------------------- |
-| 1   | example | [product-of-array-except-self.md](product-of-array-except-self.md) |
+| ID  |         METHOD         |
+| :-- | :--------------------: |
+| 1   | [example](1-answer.md) |