Merge branch 'master' of https://github.com/thecodingwizard/usaco-guide
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@ -119,6 +119,8 @@ static boolean check(long x){
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}
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```
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Note that I used the `Arrays.sort()` function, which uses quicksort on primitive data types such as `long`s. This is fine for USACO, but in other contests, such as CodeForces, it may time out on test cases specifically engineered to trigger worst-case O(n^2) behavior in quicksort. In such contests, you should declare the underlying array as an array of objects, for example `Long` instead of `long`. This forces the `Arrays.sort()` function to use mergesort, which is always O(n log n).
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C++:
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```cpp
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