| # | Title | Solutions | Video | Difficulty | Tag

|-----|----------------|---------------|--------|-------------|-------------

|2007|[Find Original Array From Doubled Array](https://leetcode.com/problems/find-original-array-from-doubled-array/)|[Python3](../master/python3/2001.py),[Java](../master/src/main/java/com/fishercoder/solutions/_2007.java)||Medium||

|2006|[Count Number of Pairs With Absolute Difference K](https://leetcode.com/problems/count-number-of-pairs-with-absolute-difference-k/)|[Python3](../master/python3/2001.py),[Java](../master/src/main/java/com/fishercoder/solutions/_2006.java)||Easy||

|2007|[Find Original Array From Doubled Array](https://leetcode.com/problems/find-original-array-from-doubled-array/)|[Java](../master/src/main/java/com/fishercoder/solutions/_2007.java)||Medium||

|2006|[Count Number of Pairs With Absolute Difference K](https://leetcode.com/problems/count-number-of-pairs-with-absolute-difference-k/)|[Java](../master/src/main/java/com/fishercoder/solutions/_2006.java)||Easy||

|2001|[Number of Pairs of Interchangeable Rectangles](https://leetcode.com/problems/number-of-pairs-of-interchangeable-rectangles/)|[Python3](../master/python3/2001.py),[Java](../master/src/main/java/com/fishercoder/solutions/_2001.java)||Medium||

|2000|[Reverse Prefix of Word](https://leetcode.com/problems/reverse-prefix-of-word/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_2000.java)||Easy||

|1996|[The Number of Weak Characters in the Game](https://leetcode.com/problems/the-number-of-weak-characters-in-the-game/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1996.java)||Medium||