feat: add Maximum Erasure Value LeetCode problem (#1137)

* add leetcode Maximum Erasure Value

* Update 1695.c

add new line at the end

* Rename README.md to DIRECTORY.md

* chore: apply suggestions from code review

* Update DIRECTORY.md

* Update leetcode/DIRECTORY.md

Co-authored-by: Taj <[email protected]>

Co-authored-by: David Leal <[email protected]>
Co-authored-by: Taj <[email protected]>

Author: 3 people

leetcode/DIRECTORY.md

@@ -101,6 +101,7 @@
 | 1184 | [Distance Between Bus Stops](https://leetcode.com/problems/distance-between-bus-stops/)                                         | [C](./src/1184.c) | Easy       |
 | 1189 | [Maximum Number of Balloons](https://leetcode.com/problems/maximum-number-of-balloons/)                                         | [C](./src/1189.c) | Easy       |
 | 1207 | [Unique Number of Occurrences](https://leetcode.com/problems/unique-number-of-occurrences/)                                     | [C](./src/1207.c) | Easy       |
+| 1695 | [Maximum Erasure Value](https://leetcode.com/problems/maximum-erasure-value/)                                                   | [C](./src/1695.c) | Medium     |
 | 1769 | [Minimum Number of Operations to Move All Balls to Each Box](https://leetcode.com/problems/minimum-number-of-operations-to-move-all-balls-to-each-box/)                                     | [C](./src/1769.c) | Medium     |
 | 1524 | [Number of Sub-arrays With Odd Sum](https://leetcode.com/problems/number-of-sub-arrays-with-odd-sum/)                           | [C](./src/1524.c) | Medium     |
 | 1653 | [Minimum Deletions to Make String Balanced](https://leetcode.com/problems/minimum-deletions-to-make-string-balanced/)           | [C](./src/1653.c) | Medium     |

leetcode/src/1695.c

@@ -0,0 +1,29 @@
+// Window sliding. Runtime: O(n), Space: O(n)
+int maximumUniqueSubarray(int* nums, int numsSize){
+    short* numsSet = (short*)calloc(10001, sizeof(short));
+    numsSet[nums[0]] = 1;
+
+    int maxSum = nums[0];
+
+    int windowSumm = maxSum;
+    int leftIndex = 0;
+    
+    int num = 0;
+    for(int i = 1; i < numsSize; i++){
+        num = nums[i];
+        while (numsSet[num] != 0){
+            numsSet[nums[leftIndex]] = 0;
+            windowSumm -= nums[leftIndex];
+            leftIndex++;
+        }
+        
+        numsSet[num] = 1;
+        windowSumm += num;
+            
+        if (maxSum < windowSumm){
+            maxSum = windowSumm;
+        }
+    }
+    
+    return maxSum;
+}