1.3 KiB
1.3 KiB
id | challengeType | title |
---|---|---|
5900f3ff1000cf542c50ff12 | 5 | Problem 147: Rectangles in cross-hatched grids |
Description
There are 5 grids smaller than 3x2, vertical and horizontal dimensions being important, i.e. 1x1, 2x1, 3x1, 1x2 and 2x2. If each of them is cross-hatched, the following number of different rectangles could be situated within those smaller grids: 1x1: 1 2x1: 4 3x1: 8 1x2: 4 2x2: 18
Adding those to the 37 of the 3x2 grid, a total of 72 different rectangles could be situated within 3x2 and smaller grids.
How many different rectangles could be situated within 47x43 and smaller grids?
Instructions
Tests
tests:
- text: <code>euler147()</code> should return 846910284.
testString: assert.strictEqual(euler147(), 846910284, '<code>euler147()</code> should return 846910284.');
Challenge Seed
function euler147() {
// Good luck!
return true;
}
euler147();
Solution
// solution required