add 77

fishercoder1534 · fishercoder1534 · commit 553aa946d51f · 2017-07-13T22:22:39.000-07:00
diff --git a/README.md b/README.md
@@ -466,6 +466,7 @@ Your ideas/fixes/algorithms are more than welcome!
 |80|[Remove Duplicates from Sorted Array II](https://leetcode.com/problems/remove-duplicates-from-sorted-array-ii/)|[Solution](../master/src/main/java/com/fishercoder/solutions/RemoveDuplicatesfromSortedArrayII.java)|O(n) |O(n)|Medium|
 |79|[Word Search](https://leetcode.com/problems/word-search/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_79.java)|O(m*n*l) ? |O(m*n)|Medium|Backtracking, DFS
 |78|[Subsets](https://leetcode.com/problems/subsets/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_78.java)|O(n^2) ? |O(1)|Medium|Backtracking
+|77|[Combinations](https://leetcode.com/problems/combinations/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_77.java)|O(n^2) ? |O(1)|Medium|Backtracking
 |76|[Minimum Window Substring](https://leetcode.com/problems/minimum-window-substring/)|[Solution](../master/src/main/java/com/fishercoder/solutions/MinimumWindowSubstring.java)|O(n)|O(k)|Hard|Two Pointers
 |75|[Sort Colors](https://leetcode.com/problems/sort-colors/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_75.java)|O(n)|O(1)|Medium| Two Pointers
 |74|[Search a 2D Matrix](https://leetcode.com/problems/search-a-2d-matrix/)|[Solution](../master/src/main/java/com/fishercoder/solutions/Searcha2DMatrix.java)|O(logn)|O(1)|Medium| Binary Search
