Merge pull request kamyu104#84 from sangheestyle/master

Update README.md

Author: kamyu104

README.md

@@ -135,7 +135,7 @@ I'll keep updating for full summary and better solutions. Stay tuned for updates
 729 | [My Calendar I](https://leetcode.com/problems/my-calendar-i/) | [C++](./C++/my-calendar-i.cpp) [Python](./Python/my-calendar-i.py) | _O(nlogn)_ | _O(n)_ | Medium ||
 731 | [My Calendar II](https://leetcode.com/problems/my-calendar-ii/) | [C++](./C++/my-calendar-ii.cpp) [Python](./Python/my-calendar-ii.py) | _O(n^2)_ | _O(n)_ | Medium ||
 732 | [My Calendar III](https://leetcode.com/problems/my-calendar-iii/) | [C++](./C++/my-calendar-iii.cpp) [Python](./Python/my-calendar-iii.py) | _O(n^2)_ | _O(n)_ | Hard ||
-747 | [Largest Number Greater Than Twice of Others](https://leetcode.com/problems/largest-number-greater-than-twice-of-others/) | [C++](./C++/largest-number-greater-than-twice-of-others.cpp) [Python](./Python/largest-number-greater-than-twice-of-others.py) | _O(n)_ | _O(1)_ | Easy ||
+747 | [Largest Number At Least Twice of Others](https://leetcode.com/problems/largest-number-at-least-twice-of-others/) | [C++](./C++/largest-number-at-least-twice-of-others.cpp) [Python](./Python/largest-number-at-least-twice-of-others.py) | _O(n)_ | _O(1)_ | Easy ||
 756 | [Pour Water](https://leetcode.com/problems/pour-water/) | [C++](./C++/pour-water.cpp) [Python](./Python/pour-water.py) | _O(v * n)_ | _O(1)_ | Medium ||
 
 ## String