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+# React
+
+Implement a basic reactive system.
+
+Reactive programming is a programming paradigm that focuses on how values
+are computed in terms of each other to allow a change to one value to
+automatically propagate to other values, like in a spreadsheet.
+
+Implement a basic reactive system with cells with settable values ("input"
+cells) and cells with values computed in terms of other cells ("compute"
+cells). Implement updates so that when an input value is changed, values
+propagate to reach a new stable system state.
+
+In addition, compute cells should allow for registering change notification
+callbacks. Call a cell’s callbacks when the cell’s value in a new stable
+state has changed from the previous stable state.
+
+To run the tests simply run the command `go test` in the exercise directory.
+
+If the test suite contains benchmarks, you can run these with the `-bench`
+flag:
+
+ go test -bench .
+
+For more detailed info about the Go track see the [help
+page](http://exercism.io/languages/go).
+
+
+
+## Submitting Incomplete Problems
+It's possible to submit an incomplete solution so you can see how others have completed the exercise.
+